In spite of its many virtues, it has not supplanted the .300 Winchester Magnum. Through the years I have had good luck loading practice cartridges for the .300 WSM with Accurate 5744, H4198, H4895 and Varget and various 125-grain bullets with H4895 being a favorite. Others options are close on the heels of those velocities. Seems to be what everyone was working with when they first came out. And again, you might look at the numbers on the graph and realize you have seen other trajectory data with much flatter trajectories but remember we are only looking at factory loads. of 2.85 inches. Ive been shooting factory 180 grn accubonds out of it with great success in both accuracy and performance on game so I want to stick with that bullet. 300 Blackout; 300 Rem Ultra Mag; 300 SA Ultra; 300 Savage; 300 WSM; 300 Weatherby Mag.300 Winchester Magnum.303 British.308 Winchester (7.62 X 51mm) 32 Winchester Special.325 WSM; 35 & 350 to 378 rifle sizes.338 Rifle Calibers. 216 Reed Street P.O. Put this bad boy in a 24" barrel on a bolt gun and you are in a new dimension, looking in the rear view mirror screaming, "If you ain't first, you're last!" Privacy Policy   •   Contact Us   •   Warnings   •   FAQs   •  © 2021 National Rifle Association of America, 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, Mossberg 590 Shockwave: Top-Selling Pump Shotgun in 2020. I am interested in H4350, Superformance, RL-22, and RL-17 for powders. In the Model 700, Accurate’s 4350 turned in an extreme spread of velocity of 32 fps over 10 shots with Nosler 180-grain AccuBonds. bullets available for it, the .300 WSM is destined to become an even more popular magnum cartridge in the next decade. Nosler figures show that 60.0 grains of H380 powder behind their 165-168 grain bullets gave a MV of 2940 fps, and a maximum charge of 64.0 grains of H380 gave a MV of 3087 fps. If you're unsure, or just want options, check as many boxes as you'd like. Get the American Rifleman Insider newsletter for at-a-glance access to industry news, gear, gun reviews, videos and more—delivered directly to your Inbox. Mag. Get the best deals for 300 wsm reloading dies at eBay.com. Examples include H380, H414, H4831, IMR 4064, IMR 4350, IMR 4831, VIHT N-550, and W760. The 200 yard figures are 2834 fps and 2676 ft. lbs. But five-shot groups were round with no vertical stringing. SAUM in a 24" test barrel. So what was once considered a ballistic sin is actually a virtue. It has slightly less powder capacity than the standard length .300 Winchester Magnum. With bullets in the 150-180 grain weight range, however, its performance is essentially identical to that of the established .300 Win. We carry 300 winchester short mag dies from Forster, Hornady, Lee, Lyman, RCBS, and Redding. Contact Us. by John Haviland - 300 Winchester Short Magnum Suggested ullet se Suggested Bullet Use Maximum Loads Should Be Used With Caution - Always Start With Minimum Loads. means that bullets weighing 180 and 200 grains will protrude into the usable propellant space. Examples include H380, H414, H4831, IMR 4064, IMR 4350, IMR 4831, VIHT N-550, and W760. The .300 Win Mag can be loaded to the same level, as the rifles are of the same strength. The fifth edition of the Nosler Reloading Guide shows that 56.5 grains of IMR 4064 behind their 150-155 grain bullets produced a MV of 3063 fps. The extreme spread of velocity was 150 fps over 10 shots with H4895 and the Nosler 125-grain Ballistic Tip listed in the load table. Winchester figures for the .300 WSM with a 24" test barrel claim a muzzle velocity of 3300 fps and ME of 3628 ft. lbs. .300 Winchester Short Magnum / .300 WSM (Barnes Reloading Manual #4) reloading data with 106 loads. Find what you need in four easy steps. Whether it's 10mm or 50 BMG, you can find it for sale at Midsouth. For a short time the .300 WSM was loaded with the 165 grain FS at 3125fps and the 180 grain FS at 2970fps before being discontinued in favor of the Elite projectile for use on tough game. It provides high speed and excellent accuracy with 125- to 180-grain bullets in the .300 WSM. But don’t despair if they’re not on your loading room shelf because many customary propellants provide good speed and accuracy. I would think that sizing 270 WSM brass would be a bit less stressful than using 300 WSM brass. for the 150 grain bullet. The Great Ammo Shortage of 2020: When Will It End? However, a premium 180-grain bullet at 3,000 fps is a most effective combination. 300 Winchester Short Magnum (WSM) Load Data. But the .300 WSM case is spacious enough to hold more than 70 grains of propellant with the base of a bullet seated below the case neck. So bullets from 150-180 grains are usually the best choice in the .300 WSM. The .300 WSM does not appear well adapted for heavier bullets. The .300 Winchester Short Magnum (WSM) was introduced in 2001 and has become an extremely popular magnum cartridge because big-game hunters and handloaders have discovered it works well with a variety of propellants and bullets to provide good accuracy and high velocity for the amount of propellant burned. Copyright 2004, 2016 by Chuck Hawks. Suffice it to say, the .300 WSM was already one-up on my scorecard before we squeezed the first trigger. Hello ! The 185 gr Berger VLDs are indeed impressive out of the 300 WSM cartridge. Thank. See if any of these appeal to you. Yet only about 0.2 inches of the bullet’s base lies below the bottom of the case shoulder with a cartridge overall length (C.O.L.) Propellant held firmly in place in that manner burns evenly. The .300 WSM is “inherently accurate and relatively easy to get an accurate load for,” he said, “similar to loading for a .308 Winchester.”. Using 58 grains of W760 in the .300 WSM propels 150-grain bullets to 2,800 fps to imitate the .308 Win. 300 Blackout 135 gr. Those figures are nearly identical to the velocity of the .300 Winchester Magnum taken in the same length barrel, and also to the figures for the .300 Rem. or slowing even further to a .30-30 Win. In working up loads for the .300 WSM I used a Remington Model 700 CDL-SF, which weighed an even 8 pounds with a Leupold VX-3 4.5-14X 40 mm scope mounted in two-piece steel bases and rings. Reloading; Rifles.300 WSM (Winchester Short Magnum) If this is your first visit, be sure to check out the FAQ by clicking the link above.