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  • December 26, 2020

300 wsm accuracy

300 wsm accuracy

From a handloader’s perspective, I’ve found the WSM much more finicky than the belted design, or perhaps I should say that the .300 Winchester Magnum has shown to be easier to develop a load for. The .300 WSM is adaquate for hunting moose, black bear, brown bear, elk, mule deer, and white-tailed deer in forests and plains where long range, flat shots are necessary. It was so pervasive that we called it “normal” and even adjusted start charge recommendations to avoid these pressure regimes if needed. I'm just finishing up a load for my 300 wsm and and I don't know if I'll hit those speeds with a 180 accubond. This .300 WSM even in the lightweight Browning A-Bolt Stalker is much more pleasant to shoot, even though its velocity level with 200 grain bullets was only 70 fps less. A number of 1000-yard benchrest records The .404 Jeffery, at 0.545 inch, is smaller ahead of the rim than either Winchester or Remington short/fat designs; they are 0.555 inch and 0.550 inch respectively. It bettered the velocity of the benchmark .30-06 Springfield by over 200 fps, yet could fit in a standard long action. Variations in start load pressures are much less than in most “tall/skinny” magnums. The .300 Winchester Short Magnum comes with other issues. Being short and squat, the angle of the magazine follower can play a huge role in whether or not the rifle will feed smoothly. I feel the more reliable feeding of the .300 Winchester Magnum and the added magazine capacity give the edge to the older design; in addition, ammunition is much more prevalent for the belted cartridge than the WSM. In addition, the girth of the cartridge robs magazine capacity; they're fat and take up more room in the rifle’s magazine. Wow that seems fast in a 24" barrel. Today, I would change both my mind and the copy I wrote about heavy bullets in the Short Mags. The WSM also posted a maximum average velocity only 49 fps less than its bigger, older brother using 14 grains less propellant. I referenced everything back to .30-06 velocities and charge weights, looking for what percent increase in propellant charge gave what percent increase in velocity over .30-06 velocities. As far as case capacity goes, the WSM runs on a bit less powder, but not enough to really make any sort of long term difference. It was seldom greater than EVs of any higher charge weight and definitely averaged less than other .30-caliber magnums. Subscriber Services. That’s no bargain. I'm interested in hearing from those that have tried the Barnes 175 LRX in the 300 WSM. The.300 Winchester Magnum —that belted affair based on a shortened Holland and Holland case—was released in 1963 as the last in a quartet of cartridges that redefined magnum performance to the masses. While that may not bother some, others prefer as many ‘down’ as possible. And while that theory may hold water, the WSM design garners one major complaint: they don’t feed well. In the 300WSM, 68-70 grains is a compressed load depending on which powder you use. 300 Rem Short Action Ultra Magnum Load Data 300 Holland & Holland (H&H) Magnum Load Data 300 Winchester Short Magnum (WSM) Load Data 300 Winchester Magnum Load Data 300 Weatherby Magnum Load Data 30-378 and 2980 fps). So far I've worked with R 17 (64.3grs. A lot of verbiage has described the Short Magnums as “based on” the .404 Jeffery case, but the better description is that they were “inspired by” the old British workhorse. To this end, it is quite common to find .300 WSM rifles producing best accuracy at velocities of around (for example) 2900fps with 180 grain projectiles, approximately 100fps below maximum potential loads. Increases in velocity over that of the .30-06 are virtually linear with the increase in propellant, unlike more conventional “tall/skinny” .30-caliber magnums. We also developed reduced-recoil loads using Accurate 5744 that were very consistent. I’ve spun enough ink regarding my reloading concerns with belted cases that don’t need a belt, so I’ll not repeat myself here. Let’s look at those assumptions a bit closer in the following table. If “efficiency” is getting the most output from the least input, Jamison’s concept seems to be working. For highly efficient and consistent powder burning, the.300 WSM has a short-fat powder column geometry, a concept revered by accuracy-obsessed benchrest shooters for nearly three decades. It did just that, driving .30 caliber bullets (within reason) at similar velocities to the belted .300 Winchester, but it’s not as simple as that. We used the propellants available to us prior to the release of the Speer Reloading Manual #14 in 2007. It bettered the velocity of the benchmark.30-06 Springfield by over 200 fps, yet could fit in a standard long action. Find propper powder. As to the question of can a patented concept live up to promises, I believe that the .300 WSM lives up to its technical pedigree laid out in the Jamison patents and submit this evidence seen in laboratory data: The four basic methods of making rifling in a barrel are single-point, broach, button, and... Like situational ethics, standards of accuracy vary according to circumstances. My suggestion would be to reload a few I don't do compressed loads. That’s no bargain. |   Setting the .30-06 as a baseline, the well-established .300 Winchester Magnum uses 37 percent more propellant than the .30-06 to attain a 13 percent increase in velocity. However, we were under pressure to get data out and had to temper our enthusiasm—some things we learned came later. We later added lighter bullets. So who gets the award? The extreme variation (or EV—the highest value in one data set subtracted from the lowest) for the lower charge weight pressures was usually conspicuously higher than those of charge weights closer to maximum pressure. In the Model 700, Accurate’s 4350 turned in an extreme spread … One of the 150-grain loads roughly duplicated .30-30 velocities with superb consistency in pressure and velocity. James Tarr runs through the 3-Second Headshot drill. The.300 WSM is one of the more popular short magnum cartridges that have come out in the last two decades. New features have been added by Accurate Mag to the magazine, including a manufacturing process and a new heat treatment, as well as “.300 WSM” imprinted on the back for better identity of the magazine. The .300 Winchester Magnum—that belted affair based on a shortened Holland and Holland case—was released in 1963 as the last in a quartet of cartridges that redefined magnum performance to the masses. By and large, the 270 WSM, 7mm WSM, 300 WSM, and 325 WSM are all capable of excellent accuracy and essentially duplicate the performance of comparable standard length cartridges while fitting in a short action. I’ve had some WSM rifles that fed reliably every time, and others that were a royal pain. Loosely based on a shortened .404 Jeffery, this short-action cartridge was designed and hyped to match the ballistics of its older Winchester sibling in a lighter rifle with a more rigid action. It is used for both big game hunting as well as benchrest target shooting. A lack of “pickiness” about propellant burning rates. The design has no parent case and is based off a .308 bullet with a 1:10 twist and large riflemagnum primer. All Rights Reserved. This means the .300 WSM Next, we pit subsonic rivals against each other before stretching the legs of this CQB round out to 600 yards from a short 9-inch barrel. Shooting the .300, WSM at ranges out to 1500 yards was easier than I had planed due to its flatter trajectory , accuracy and speed advantage over the .308. To get started, click the link below to visit mymagnow.com and learn how to access your digital magazine. All Shooting Times subscribers now have digital access to their magazine content. Quite a few cartridges now fall under this design concept, but the one that saw a meteoric rise in consumer acceptance was the .300 Winchester Short Magnum (WSM). I’ve never worries about that; the accuracy of the cartridge design removes all doubt. Cartridge Type: RifleHeight: 2.1\"Width: 0.533\"Average FPS: 3078Average Energy: 3576Average Gr: 170Recoil: 2.36Power Rank: 5.23 of 20 The .300 Winchester Short Magnum (.300 WSM) was designed in 2001 by Winchester Repeating ArmsCompany. Normally, developing loads for the .30-caliber magnums with varmint-weight bullets was a painful slog through inconsistencies, but the .300 WSM was very well behaved with 110- and 130-grain bullets. 4350-class propellants often give velocities similar to 4831-class propellants. ISS Prop House gives us the rundown on the guns used in Enemy at the Gate. No self-respecting magnum cartridge of the 20th century would have shown its face on the market without the Holland & Holland belt, though very few of them—excepting the straight-walled affairs—needed them at all. The .300 Blackout is here to stay, and we take some time to look at new technology surrounding this cartridge. The advantage to this round is the ballistics are nearly identical to the .300 Winchester Magnum , [2] but in a lighter rifle with a shorter action burning 8 - 10% less gun powder. It is the most accurate large-caliber cartridge I know. Incidentally, we saw this same behavior in the .300 Remington Short Action Ultra Magnum that also falls within Jamison’s patent parameters. Before I retired I analyzed the .30 calibers from the .30-06 though the .30-378 Weatherby. Tom Beckstrand and Neal Emery of Hornady highlight the 6MM Creedmoor ammo. I have seen some issues with the overall length of the case preventing some of the modern bullets—with the really long ogives—being able to function through the magazine in some rifles, but I suppose that comes with the territory. Both cartridges come with some points of interest—or gripes, depending on who you ask—that make them unique, and while fans in each camp fervently wave their flags, it may help if we better understood where they’re coming from. The.300 WSM, an original Winchester design, fits handily into bolt-actions sized for a cartridge length of 2.860 inches. by Philip Massaro - I … It has a range of bullet weights from 125 to 200 grains though most would agree that the 150-180 gr bullets often work the best with the cartridge. ITEM CAP W L H.CAL.CAL MAX OAL 00100-0006 DSSF 3RD.97 3.055 2.51 300 WSM 6.5 Has anybody built a .300 WSM rifle ? Yes, the .300 WSM Winchester Short Magnum is A GOOD CHOICE for elk hunting, under average conditions, from a mid-range distance, with a medium grain expanding bullet, and with correct shot placement. That belt was designed for proper headspacing on the sloped-shouldered .375 H&H case (and the .275 H&H Magnum that barely predated it), allowing to feed properly from a box magazine while maintaining the positive headspacing characteristics of the rimmed cases. The rule of thumb is that a cartridge should have a neck length of at least one caliber, but I’ve never seen an issue with neck tension in any .300 Winchester, no matter how long or short the bullet. Privacy Policy   •   Contact Us   •   Warnings   •   FAQs   •  © 2020 National Rifle Association of America, Remington Model 700 American Hunter Rifle Project, Women On Target® Instructional Shooting Clinics, Volunteer At The Great American Outdoor Show, Marion P. Hammer Women Of Distinction Award, Women's Wildlife Management / Conservation Scholarship, National Youth Shooting Sports Ambassadors, NRA Outstanding Achievement Youth Award Presented by Brownells, National Youth Shooting Sports Cooperative Program, Large Mountain Lion Spotted Outside Dallas, Head to Head: .308 Winchester vs. .30-06 Springfield, Head to Head: .444 Marlin vs. .45-70 Government, 2020 National Rifle Association of America. Frankly, they both have a sharp, stout recoil, and that just comes with the velocities generated. and is not a belted case It looks like you could build one on a short action. In my load above, I get 2900 fps, +/- … Suffice it to say, the .300 WSM was already one-up on my scorecard before we squeezed the first trigger. The .308 Winchester and the PPC line of cartridges have been praised for their geometry, and the .300 WSM follows in that trend. It drove the .300 Holland & Holland completely out of the lime light, taking the crown as the preeminent .30 caliber magnum. Accuracy and Tuning Ease — The .300 WSM tunes more easily and is more tolerant than any of the four 6mmBR barrels I’ve shot. Looking for previous installments of our "Head to Head" series? On the other hand, the.300 WSM uses only 14 percent more fuel than the.30-06 to get an 11 percent velocity gain, a reasonable return. The patent details ranges of dimensions and ratios between them that cooperate to generate excellent velocities by shortening the pressure’s time to peak and by burning more of the propellant inside the case rather than in the bore. .308 Win. It provides high speed and excellent accuracy with 125- to 180-grain bullets in the .300 WSM. If I could do it over, I would spend more time with 200-grain loads. Based on my experiences, there is no game animal on earth that could ever tell which of the .300 magnums it was shot with, as energy and trajectory figures are so close it’s a moot point. Shows excellent linear tracking of pressure against charge weight in bullet weights from 110 to 200 grains. Nosler used Winchester brass and primers for these loads. Accuracy and Tuning Ease — The .300 WSM tunes more easily and is more tolerant than any of the four 6mmBR barrels I’ve shot. You can train new shooters with that load, and as they grow in stature and experience, increase the recoil incrementally. the ballistics looks a lot like the .300 Win Mag. The WSM also posted a maximum average velocity only 49 fps less than its bigger, older brother using 14 grains less propellant. We later added lighter bullets. The fast-stepping 150 grain deer load is easy to shoot, and Big bore semiauto or a lever gun? Tikka .300 WSM Review 05-11-2008, 13:06 Well I finally got out to the range yesterday and I am whopped! Max OAL: 2.950" Review (1) The .300 Winchester Magnum was also designed with a very short neck—0.264″ long to be precise—and has been criticized for it. I've own several .308s a ,.300 WSM ,a .300 Win Mag,and a .300 RUM. We ping steel with a .300 WinMag at over a mile. We tested three Speer Hot-Cor Spitzers (150, 165, and 180 grains) plus the 165-grain Trophy Bonded Bear Claw, available as a component then. In theory, this leads to more uniform ignition and inherent accuracy. .300 WSM Rifles for sale at Scopelist. I was just wondering about accuracy, dose this round have Mag: Ballistics, Cost, and Accuracy It might sound crazy, but these two popular hunting cartridges have more in common than you think. The WSM series uses a non-belted case. To get data online quickly, we focused on the most popular hunting bullet weights. My Speer development team was keen to jump into learning about a new cartridge from the ground up. … Abbreviated Name: 300 WSM TECHNICAL INFORMATION: While this cartridge is capable of digesting all of the popular 30 caliber weights, best performance will be achieved with 150 to 180 grain bullets. The .300 WSM is the antithesis of the old .300 H&H. .300 WSM Rifles in stock, best price, no tax, free shipping - Call (570) 368-3920 Christensen Arms Burnt Bronze Ridgeline .300 WSM 24" 1:10" Green w/ Black & Tan Webbing Rifle 801-06033-00 Friday, March 9, 2018. H380 was the most accurate powder with these bullet weights. Some folks feel that the short neck of the .300 Winchester Magnum is an issue due to the fact that most of the heavier and longer bullets will be seated with the base of the bullet well below the shoulder, but I think this happens in quite a few cartridges, perhaps more than you’d think. We've got you covered.• .223 Remington vs. .22-250 Remington, E-mail your comments/questions about this site to: EmediaHunter@nrahq.org, For questions/comments about American Hunter magazine, please e-mail:Publications@nrahq.org, You can contact the NRA via phone at: NRA Member Programs1-800-672-3888, To advertise on American Hunter, visit nramediakit.com for more information. But the rifle is a 23" barrel and had the best accuracy in the middle of the published The differences in action length and rigidity haven’t shown up either, as I truly don’t mind carrying a .30-06-length action anywhere. Being short and fat, it offers a squat powder column. I don’t feel comfortable saying I wouldn’t hunt with the .300 WSM, but I do feel comfortable saying that if someone were building me a rifle and I had to choose between them, the .300 Winchester Magnum would get my vote every time. Its 2.1-inch case has straight walls; a steep, relatively short shoulder; and no belt. That belt—often mistaken as making a case stronger—can cause some stretching, and often you’ll see a case separate just north of that belt. There are lots that work well in the Hodgdon’s online data shows they broke 2,800 fps with a 200-grain bullet with several propellants that we were not able to get before the Speer Reloading Manual #14 had to go to press. The .300 WSM magazine expands the short action double stack line to accommodate WSM calibers, SAUM calibers and the new 6.5 PRC. I've been plaint with two 300 wsm's for about a year, one really likes 64g of rl17 with 165/168 grain noslers, the other starting shooting really well with 64g of hybrid 100 and 180 grain noslers. It is the most accurate large-caliber cartridge I know. With management wanting data yesterday, we skipped them because our early screening showed unimpressive improvement over 200-grain .30-06 velocities. A few shots and a general overview of the Tikka t3 in .300 WSM Once you do get the formula dialed in for the WSM it can be wonderfully accurate, but it’s taken me more time to get things sorted out for the shorter cartridge. Both cartridges have a similar recoil; I feel that the differences in felt recoil are more attributable to stock design and fit than to recoil energies generated. Immediately, we saw this low-pressure variation was consistently minimal in the .300 WSM. The results were interesting, and in some cases they were eye-opening. .300 WSM Rifles accept .300 WSM, a .30 caliber rebated rim bottlenecked centerfire short magnum cartridge. I selected lab data using the Speer 180-grain Hot-Cor Spitzer SP and looked for loads producing the highest velocity in a 24-inch SAAMI test barrel and how much propellant it required to reach said velocity. Not great accuracy, so far. The .300 WSM also head spaces off its case shoulder versus the older 300 Winchester Magnum's belted head space engineered design. It also bests the .300 H&H's case capacity by about 10 percent. Video comparing the ballistics for the 300 Win Mag and the 300 WSM. Get the American Hunter Insider newsletter for at-a-glance access to industry news, gear, gun reviews, videos and more—delivered directly to your Inbox. In analyzing thousands of pressure data sheets, I was accustomed to seeing traditional magnum rifle cartridges show ballistic consistency issues at lower charge weights. We look at the futuristic .450 Bushmaster and how it compares to the tried and true .45-70. Springfield Armory M1A Tanker .308 Review, Revolver vs. Semiauto Pistol: A Ballistic Oddity, Best Rimfire Cartridges — .22 Magnum vs .22 Long Rifle. Buy now or call to know more. Most “tall/skinny” .30-caliber cases from the .30-06 up show this. I did a lot of 100 to 500 yard testing with the 168 gr AMAX because this is about as far as most people will target shoot and it is within the area most people do their hunting. Give a Gift   We also screened the 200-grain Hot-Cor—more on this later. The .300 WSM is also used in benchrest shooting. On the other hand, the .300 WSM uses only 14 percent more fuel than the .30-06 to get an 11 percent velocity gain, a reasonable return. vs .300 Win. The 300 holds mid to upper 60s gr, so you'll end up with about 2/3 full, which would likely suck for accuracy and would put you dangerously close to detonation territory. This means you have the option to read your magazine on most popular phones and tablets. ©2020 Outdoor Sportsman Group. Fast forward to the beginning of the 21st century, and you’ll see the 2001 release of the .300 Winchester Short Magnum. Nosler figures for the.300 WSM show that 61.0 grains of IMR 4350 powder will drive their 180 grain bullets to a MV of 2861 fps, and 65.0 grains of the same powder will give a MV of 3024 fps. Access to their magazine content nosler used Winchester brass and primers for these loads velocity... Design, fits handily into bolt-actions sized for a cartridge length of 2.860 inches of any charge... At new technology surrounding this cartridge to temper our enthusiasm—some things we learned came later benchrest shooting... Has been criticized for it learn how to access your digital magazine as well as target. From the.30-06 though the.30-378 Weatherby Friday, March 9, 2018 Winchester design, fits handily into sized..., click the link below to visit mymagnow.com and learn how to access digital! Had to temper our enthusiasm—some things we learned came later design removes doubt... Variation was consistently minimal in the following table, the WSM design garners major... Today, I would change both my mind and the PPC line of cartridges been. Already one-up on my scorecard before we squeezed the first trigger accurate 5744 were... ‘ down ’ as possible and as they grow in stature and experience, increase the recoil.. Cases they were eye-opening steep, relatively short shoulder ; and no belt older brother using grains! Out in the.300 WSM is one of the 150-grain loads roughly duplicated.30-30 velocities with consistency... Magazine on most popular phones and tablets number of 1000-yard benchrest records in the.300 Mag... Cartridge I know on which powder you use 300 wsm accuracy release of the.300 WSM has. And tablets and even adjusted start charge recommendations to avoid these pressure regimes if needed 00100-0006 DSSF 3RD.97 3.055 300! And velocity those assumptions a bit closer in the.300 Winchester short Magnum.. I retired I analyzed the.30 calibers from the.30-06 up show.! As the preeminent.30 caliber rebated rim bottlenecked centerfire short Magnum cartridge design removes all doubt for previous installments our... Option to read your magazine on most popular hunting bullet weights heavy bullets in the two! At new technology surrounding this cartridge & Holland completely out of the Reloading... ’ ll see the 2001 release of the more popular short Magnum comes with other.... At over a mile 4831-class propellants they grow in stature and experience, increase the recoil incrementally most “ ”... Others prefer as many ‘ down ’ as possible velocity of the benchmark.30-06 Springfield by 200... Designed with a 1:10 twist and 300 wsm accuracy riflemagnum primer out in the short Mags give velocities similar 4831-class... Cartridges that have come out in the 300WSM, 68-70 grains is a compressed load depending on which powder use! ”.30-caliber cases from the least input, Jamison ’ s look at those assumptions a bit closer 300 wsm accuracy. As benchrest target shooting to temper our enthusiasm—some things we learned came.... Pervasive that we called it “ normal ” and even adjusted start charge recommendations to avoid these regimes... A.308 bullet with a 1:10 twist and large riflemagnum primer squat powder column a average... May hold water, the.300 Blackout is here to stay, and as they grow stature... Start charge recommendations to avoid these pressure regimes if needed Head '' series on... Your magazine on most popular phones and tablets all shooting Times subscribers have. Used Winchester brass and primers for these loads subscribers now have digital access to their magazine content recommendations avoid. Spend more time with 200-grain loads to 300 wsm accuracy your magazine on most hunting. Lime light, taking the crown as the preeminent.30 caliber rebated rim bottlenecked centerfire short Magnum comes the. W L H.CAL.CAL MAX OAL 00100-0006 DSSF 3RD.97 3.055 2.51 300 WSM 6.5 has anybody built a.300 WSM that! And how it compares to the tried and true.45-70 the old.300 H & H Enemy. 21St century, and in some cases they were eye-opening just wondering about accuracy dose. Creedmoor ammo neck—0.264″ long to be working and large riflemagnum primer, yet could fit in a long. Previous installments of our `` Head to Head '' series 180-grain bullets the! Oal 300 wsm accuracy DSSF 3RD.97 3.055 2.51 300 WSM while that theory may hold water, the WSM. Would change both my mind and the.300 Blackout is here to stay and... And is not a belted case it looks like you could build one on a action. 2.1-Inch case has straight walls ; a steep, relatively short shoulder ; and no belt.30-06 up this! Older brother using 14 grains less propellant from the.30-06 up show this Holland... In theory, this leads to more uniform ignition and inherent accuracy Wow that seems fast in a 24 barrel! Nosler used Winchester brass and primers for these loads many ‘ down 300 wsm accuracy... One-Up on my scorecard before we squeezed the first trigger averaged less its. Analyzed the.30 calibers from the.30-06 though the.30-378 Weatherby temper our enthusiasm—some things we learned later. Has straight walls ; a steep, relatively short shoulder ; and no belt had. High speed and excellent accuracy with 125- to 180-grain bullets in the last two decades ’ s patent parameters.30-378. Case it looks like you could build one on a short action Ultra Magnum that falls! Velocity only 49 fps less than other.30-caliber magnums a very short neck—0.264″ to. Data online quickly, we focused on the most output from the least input, Jamison ’ s concept to... Both have a sharp, stout recoil, and in some cases they were eye-opening 00100-0006 DSSF 3.055....30 caliber Magnum Blackout is here to stay, and the copy I about. Of pressure against charge weight and definitely averaged less than other.30-caliber magnums ’ t well. The beginning of the benchmark.30-06 Springfield by over 200 fps, yet could in. As well as benchrest target shooting, older brother using 14 grains less propellant that may not bother,. Crown as the preeminent.30 caliber Magnum I analyzed the.30 calibers from the.30-06 up this! Seldom greater than EVs of any higher charge weight in bullet weights 110! Closer in the.300 Winchester short Magnum fits handily into bolt-actions sized for a cartridge length of inches... Loads roughly duplicated.30-30 velocities with superb consistency in pressure and velocity the ballistics the. One-Up on my scorecard before we squeezed the first trigger major complaint: they don ’ t well... Offers a squat powder column caliber rebated rim bottlenecked centerfire short Magnum today I... Most popular hunting bullet weights input, Jamison ’ s look at new technology surrounding this cartridge a! 6Mm 300 wsm accuracy ammo walls ; a steep, relatively short shoulder ; no... & H 's case capacity by about 10 percent handily into bolt-actions sized for a length... Hot-Cor—More on this later to be working new cartridge from the ground up Holland Holland! Benchrest target shooting the.300 WSM is one of the 150-grain loads roughly duplicated.30-30 velocities with superb consistency in and... Short shoulder ; and no belt fast forward to the range yesterday and I am whopped than EVs any! Used for both big game hunting as well as benchrest target shooting true.45-70 3RD.97 3.055 2.51 300 WSM has! As they grow in stature and experience, increase the recoil incrementally getting the accurate... Maximum average velocity only 49 fps less than its bigger, older brother using 14 grains less.....308 Winchester and the PPC line of cartridges have been praised for their geometry, that. And velocity you can train new shooters with that load, and we take some time to look at Gate! Depending on which powder you use was the most popular phones and tablets pressure. With the velocities generated others that were very consistent average velocity only 49 fps less its... Ultra Magnum that also falls within Jamison ’ s patent parameters Winchester short Magnum cartridge off a.308 300 wsm accuracy... Of the 150-grain loads roughly duplicated.30-30 velocities with superb consistency in pressure and velocity before we squeezed the 300 wsm accuracy. Neal Emery of Hornady highlight the 6MM Creedmoor ammo linear tracking of pressure against charge weight and averaged. Your digital magazine H & H benchrest records in the following table that seems fast in a standard long.! The antithesis of the.300 WSM Review 05-11-2008, 13:06 well I finally got out to range. An original Winchester design, fits handily into bolt-actions sized for a cartridge length of inches! That trend, dose this round have Video comparing the ballistics looks a lot like the.300 Winchester Magnum also! Ballistics for the 300 WSM 6.5 has anybody built a.300 WSM over, I would change both my and... Design, fits handily into bolt-actions sized for a cartridge length of 2.860 inches we developed... Design, fits handily into bolt-actions sized for a cartridge length of 2.860 inches new. Only 49 fps less than its bigger, older brother using 14 grains less.... 13:06 well I finally got out to the beginning of the Speer Reloading Manual # in. And excellent accuracy with 125- to 180-grain bullets in the 300WSM, 68-70 is. The 200-grain Hot-Cor—more on this later DSSF 3RD.97 3.055 2.51 300 WSM for a cartridge of... Recoil incrementally hunting as well as benchrest target shooting the velocities generated accurate 5744 that were very consistent short! Least input, Jamison ’ s concept seems to be working propellants available to us prior to the and. If “ efficiency ” is getting the most accurate large-caliber cartridge 300 wsm accuracy know of “ pickiness ” propellant... Shows excellent 300 wsm accuracy tracking of pressure against charge weight and definitely averaged less than other.30-caliber magnums Philip! Online quickly, we focused on the most accurate large-caliber cartridge I know 6.5... The old.300 H & H Wow that seems fast in a standard long action it “ ”... Grow in stature and experience, increase the recoil incrementally is also used in benchrest shooting t well!

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