The 243 WSSM shoots bullets a little faster. The Grendel is a good choice but if you're a reloader I would split the difference and build a 243 LBC. The 243 WSSM gives generally a 10% increase in velocity over the 243 Win. I think the 243 Win. Caver writes: I was told to look carefully at the 243 WSSM as a faster, flatter alternative to the 6BR. The ballistic performance of the .243 WSSM based off 5 grain typ… The .243 sends a bigger bullet down range and is a great long range flat shooting round in a small package capable and legal to shoot deer with. It is based off the .300 Winchester Short Magnum cartridge and has a 1:10 twist with a large rifle primer. To my The .243 win is better than the .270 win in my opinion.. Ive owned plenty of them and the .243 win is superior. and it’s close cousins — the 6XC, 6x47 Lapua, 6mm Remington, 243 WSSM, 6mm-284 Win., and 240 Wby Mag. Proven on antelope … The 243 WSSM was first introduced in 2003. and it’s close cousins — the 6XC, 6x47 Lapua, 6mm Remington, 243 WSSM, 6mm-284 Win., and 240 Wby … A buddy of mine has a Model 70 Winchester in 243 WSSM and it groups like buckshot. Olin is a very strong company and it is likely that 243WWSM brass will be available for many years to come. A .30-06 pushing the same bullet would produce closer to 3,000 ft-lbs. You better stock up on brass because they aren't going to make it any more. .243 Winchester Brass Weight and Capacity Tested. - - - jb1000br 1000yd Editor writes: Thick nasty brass--only available from Winchester. This means you get a lighter, smaller rifle that produces a shorter, faster bolt throw. The best part about the 243 wssm is that it works in the AR15/M16 platform. Re: 6XC or 243 Win or 243 WSSM? Excellent BHW barrels arec available and lots of guys with loading data. Because the shells are fatter you will get one less shell in the magazine in a Browning A-Bolt or Winchester Model 70. We are excited about this comparison as both of these cartridges show tremendous versatility in both the hunting and competitive shooting worlds and not a lot of information is out there taking a look at these two cartridges stacked up side by side. Short answer, 243 if i only had the choice of the two.He will need to practice, practice, practice, and at $25 a box that practice might be limited. Anyways for all you experts out there if you had the choice of a plain jane 243 or a 243 WSSM which one would it be and why? is an excellent cartridge and I have always been fond of it. The WSSM is not doable as a DIY build. The new .243 WSSM, the subject of this article, is one of the original WSSM calibers. However, it should be possible to approximately equal the published velocities with carefully assembled maximum reloads using 55, 95, and 100 grain bullets. These reloads produce very consistent accuracy in my rifles. History. I have NO … Any comments, pro or con would be appreciated. Plus, I am a broke college student so I can't afford replacing barrels. The 243 Winchester Super Short Magnum or 243 WSSM is a rifle cartridge introduced in 2003. 0. The Grendel is a good choice but if you're a reloader I would split the difference and build a 243 LBC. The 243 WSSM can fit into a shorter action rifle with a shorter bolt, magazine and receiver. Muzzle velocities run about 100 fps faster than the .243 Win. 22-250 is a bit cheaper to reload; $21.99 for Hornady 100gr BTSP .243 bullets, vs. $16.99 for Sierra 55gr BTHP .224 bullets at yesterday at Bass Pro. The following ammunition cartridge ballistics information and chart can be used to approximately compare .243 Winchester vs .30-06 Springfield ammo rounds. Since that time, the cartridge has become a hot commodity in … Guess I might have swayed your opinion some. The .243 WSSM is factory loaded close to the allowable maximum average pressure, which means that reloaders are unlikely to be able to improve much on published velocities. Alright question I got now is the accuracy between the AR and bolt action? At the muzzle, those 150-grain slugs might be packing about 2,000 ft-lbs. Go Long with the CVA Paramount Muzzleloader, Hankook DynaPro MT2 — New Tires For My JK, DIY European Skull Mount In 3 Days — Bucket Heater Method, 6.5 PRC in a Short Action Magazine on the Browning X-Bolt, Jeep Wrangler JK - Tall Driver More Legroom. Cartridge Type: Rifle Height: 1.67" Width: 0.544" Average FPS: 3198 Average Energy: 2228 Average Gr: 86 Recoil: 1.37 Power Rank: 2.55 of 20 The .243 Winchester Super Short Magnum (.243 WSSM) was designed in 2003 by Browning and Winchester. The 243 WSSM and 6mm Remington cartridges barely (and by barely, I mean by less than 10%) surpass the .243 Win round. Even the little .243 Winchester throwing a 100-grain bullet 3,100 fps cranks out more muzzle energy—2,100 ft-lbs—than the .30-30. The .243 Winchester is simply the .308 Winchester necked down to hold .243″ diameter bullets. The DIY Hunter 420 Views Load more. IF it is an AR you are wanting, the WSSM is a no brainer. Only Winchester and Browning chambered rifles for the ill-fated family, and production of those, along with ammunition, lasted but a few years. Only Winchester and Browning chambered rifles for the ill-fated family, and production of those, along with ammunition, lasted but a few years. The simple answer is that the 243 Win. I will start a big arguement here, but considerwhere you hunt, what you hunt, you and your sons tracking skills, and how big of a gun your son can shoot comfortably before buying. From what I understand the WSSM's burn barrels faster. 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