Honestly 556 goes subsonic at about 1000 yards. And 5.54 Russian tumbles with the wrong twist. And both rounds destabilize quickly.
It's easier to run the AR10 platform and about 5 lbs difference between them.
Don't get me wrong I love the M1a series. But the last one had the barrel and chamber rust up.
Switched to the gas piston Ruger version and wow!
Never had a problem with the 308, but I clean them all, and that is half the battle there. The 300 blackout looks like a pistol round, but the Creedmore looks promising in the AR platform. I wonder if the 308 is too hot for long term use in the AR platform
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It ran way cooler in my opinion. And huge weight savings. And the gas piston? Makes it run way cooler than the direct gas impingement. Which also makes cleaning a breeze.
Then uppers. That's the issue. With both the ar15 and the 10 you can run a new upper that has dedicated optics and switch out calibers.
Careful a few guys exchange the wrong ammo and oops.
But now with a 2 pin system you rock the same nice trigger and shoot 17hmr,22lr, pistol rounds, 556, 300 bo, 450 bushmaster, 50 Beowulf.
The 10? 243, 7mm-08, 308, and 338-08 and I do think 6.5creedmore
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I have three ARs one 223, and two 556; I may try the creedmore, but I have better stuff on the larger bore, and just don't quite trust this platform. It takes me about an hour to finish an 80% on my mill, but I have just made a couple. Not interested in the 243 for the same reason, not enough pill to carry the energy.
When I hunt, I want a KILL, not a wound; although with coyotes, and hogs I will take what I can get!
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