The improved shoulder of the .243 AI will prevent more of the corrosive gasses/heat from the throat and prolong barrel life. Curious what you go with, why and your results. Conservationist. Commonly encountered match cartridges, left to right: 6mm BR, 243 Winchester, 6×47 Lapua, 6 Creedmoor, 6.5×47 Lapua, 6.5 Creedmoor, 260 Remington, and 308 Winchester. This caliber has a very wide accuracy node and this one settled in at 3458 fps with 80 Grain Berger VLDâ s. BUT, if you're wanting to sling the 75+ grainers for a 22 caliber bore, IMO, the 22-243 Improved or 22-6mm or 22-284 is a little better choice because they have more horsepower to drive them. The longer neck of the 6mm … The .243 when twisted right is a very capable long range round. The 6mm Rem uses the mot powder and will eat barrels the fastest. 6mm Creedmoor vs 243 Both use the same 6mm/.243” diameter bullets, but the 6mm Creedmoor was specifically designed to use longer, heavier, and more aerodynamic projectiles. I do strongly prefer the 6mm Creed for it’s faster twist for heavier bullets, and I used a fast twist 243win AI for years ahead of a straight 243, but the results are all there. Mag. The .243s arent twisted right and are usually 9.25 and slower as they are set up for lighter bullets except for the Ruger Precision Rifle which was 7.7 but that was replaced with a 6mm Creedmoor. More The Gun Nuts. Yes, those all work and work well on coyotes. More is … The .243 AI is overbore and will eat barrels. Second, it was chambered in the delightful Winchester Model 70 Featherweight, which was a major factor in the .243’s huge success. For those who suspect foul play on the round count of my barrels and the 243, all I can say is thank you Bartlien. So do lots of others like the 223 Rem. 243 Win vs 6mm Creedmoor vs 6mm Rem Any thoughts on these as long range target cartridges? It is a nearly dead cartridge though so components are harder to come by. The Rem has a slightly higher velocity typically. https://www.rifleshootermag.com/editorial/243-win-vs-6mm-creedmoor/83694 But, I also believe the popularity of the .243 Winchester cannot be rivaled, and that the slight advantage that the 6mm Remington may offer isn’t enough to unseat the .243 in any way. By now plenty of you are ready to slap me upside the head and extoll the superior virtues of your 243 Winchester, 6mm Remington, 6mm Creedmoor, 25-06 Remington, 257 Wby., 17 Remington or even your big 300 Win. By David E. Petzal. Ackley finally gave in to his customers' requests to develop the .243 AI. Latest. While the .243 Winchester is probably the greatest of the great 6mms, the 6mm Creedmoor, which blossomed in 2017, is giving the .243 Win. The 6mm and the .243. 6.5 Grendel, 6 creed, 243win, 6SLR, 6BR/Dasher, 243LBC... that’s really the sweet spot for deer. I am leaning 6 Creedmoor and plan on running the 105's at about 3,150fps with 42gr of H4350. The 6mm BR is known to be one of the most accurate cartridges produced, especially at mid range distances to 600 yards. a run for its money due to its superb accuracy. Alaskan Coalition Seeking Permanent Protections For Bristol Bay . April 21, 2015. It is a toss up between the 6 Creedmoor and the 6x47. Parker Ackley reluctantly developed the .243 Ackley Improved ("AI"). … There are more Creedmoor target rifles out there in factory configuration than .243. I like 243 because it's really common and if need be there is lots of factory ammo if I ever needed it.

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