The simple answer is that the 243 Win. The rebated rim has a standard magnum diameter of .535" and the bloated body a head diameter of .555". Here are some of the pros and cons and why I like the 243 WSSM. Sporting Arms and Ammunition Manufacturers' Institute. Morgan UT 84050 While the hunting world can certainly survive without the .223 and .243 WSSM’s, the .25 WSSM has (or had) some truly great advantages as a youth cartridge and rifle combination. There seems to be a lot more varmint bullets available in 243 and a lot of good choices for deer too. Because the shells are fatter you will get one less shell in the magazine in a Browning A-Bolt or Winchester Model 70. From what little I know about the .25wssm I wouldn't chose it for a 'yote rifle because of what machiv said about bullet selection. Thus 243 WSSM rifles can be lighter, have stiffer actions and have faster actions to cycle. Where the 243 Win. The stock is the skeleton, the scope is the eyes, the action is the brain, and the barrel is the heart. Copyright 2004, 2012 by Chuck Hawks. Bullet diameter is .257". If ya seat 'em down deep to fit in the mag, then your infringing on powder capacity AND makin' em jump to the lands. "20,000 men, who strewed the ground in heaps and swathes. Anyone see a similarity between 6PPC and 243 WSSM? For some reason, the design and marketing of the .25 WSSM was, in my opinion, badly off course. Well, I'll chime in on a personal opinion here, but my lack of tangible data on the 25WSSM lends it as an opinion only. You will be able to develop a little more energy from the 25, 5-10%. All rights reserved. The 85 grain bullet is for shooting varmints (CXP1 class animals). I'm finding it really likes RL-17, The Official Predator Masters Search Engine, 1. It is a little fickle to hand-load for however. Or even the 115gr DTAC bullet developed with David Tubb which has a reported BC of .585. Thank you Bill! Only killed coyotes to just past 500 with it, though... Would the 100 grainer fit in AR magazine without invading powder space? Bill at Hill Billy Brass is forming WSSM brass from WSM brass. A comparison of the 243 WSSM with 243 Winchester (second from left) and with 22-250 and 223 Remington (far right). . Winchester based the .25 WSSM on the .243 WSSM case, giving the new cartridge a 30 degree shoulder angle to slightly increase powder capacity. A forum community dedicated to Sharpshooters and Sniper enthusiasts. I am sending a 120 grain bullet out of a 22" barrel on my AR at just under 3000 FPS. ." #1863678 - 03/01/11 04:17 PM Re: .25 WSSM vs. .243 WSSM [Re: Trapper Luke] machiv Predator Master Registered: 12/02/10 Posts: 54 Loc: Wisconsin I have been thinking about this too. My father's deer rifle is a Sako Forester chambered in 243 Win. The .25 WSSM is much easier to hand-load for and, with the heavier bullets, puts out some serious energy. Belligerents. Come join the discussion about optics, modifications, gunsmithing, styles, reviews, accessories, classifieds, and more! It is a necked-up version of the .243 WSSM , [1] which is in turn a shortened .300 WSM ( Winchester Short Magnum ). Yeah, that might just be right, Spade. I've shot my .25Wizzer goofin' around out past 700yds plenty o' times with low b.c. You better stock up on brass because they aren't going to make it any more. The WSSM cartridges are based on ballistics design philosophies that … The guys buy it then convert. Compared to other factory 6mm sporting cartridges the 243 WSSM is capable of functioning in the AR-15. Lastly, a 120 grain Swift spitzer bullet can be driven to a MV of 2793 fps by 42.0 grains of H4350 powder. 243 Win Super Short Magnum (WSSM) Load Data; 240 Weatherby Magnum Load Data; 250-3000 Savage Load Data; 257 Roberts Load Data; 257 Roberts Ackley Improved Load Data; 25 Winchester Super Short Magnum Load Data; 25-06 Remington Load Data; 257 Weatherby Magnum Load Data; 6.5 Grendel Load Data; 6.5 Creedmoor Load Data; 6.5 X 55 Swedish Mauser Load Data ; 260 Remington Load Data; … ), very close to the factory load ballistics. Something no one has mentioned, Isn't this just winchesters way of reinventing the wheel? The 243 WSSM was first introduced in 2003. Especially if your going to mainly use it for coyotes and a .243 is good for deer just shot placement is much more important. I know I'm going with a .243 wssm from mike once I get the money.
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