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I asked questions here about a different cartridge for the AR 15 platform. I have made up my mind!
dreher
Member Posts: 8,813 ✭✭✭✭
I kept looking at the ballistics tables for the 300 BO, 6.5 Grendel and the 6.8. I was underwhelmed. I didn't see any practical advantage to adding one of these cartridges. It seemed that I a wild hair up my butt and I just wanted something new. The fact I was not accomplishing anything by changing things was pretty much irrelevant. I was on the PSA web site looking at every thing they had in the AR 15, and again I was thinking I could see no advantage to adding one of those options. And then it dawned on me!! Why not a AR 10?? If a 308 is not practical then nothing is practical!! I'm not a big 308 person but I recognize its outstanding utility!
Once I decided the AR 10 would give me far more of what I was looking for, then I started looking at AR 10 complete rifles, uppers and lowers. Found a nice lower on sale. The tracking # said I can go to my FFL's on Monday and pick it up!! I'm all excited!!
Once I decided the AR 10 would give me far more of what I was looking for, then I started looking at AR 10 complete rifles, uppers and lowers. Found a nice lower on sale. The tracking # said I can go to my FFL's on Monday and pick it up!! I'm all excited!!
Comments
The only recommendations with the AR 10 is the parts are not milspec, therefore there are 3 different receivers, all different: DPMS (most common), Armalite, and PSA. My preference is DPMS platform because there are far more uppers out there and plenty of choices. Also many of the lower parts interchange with your AR 15.
Accuracy will amaze you, I have seen some shoot as good as my 308 target rifle
Good deal really. Another platform and another class of cartridge. I've been considering an AR10 myself. Enjoy your new rifle when you get it set up.
And fiery auto crashes
Some will die in hot pursuit
While sifting through my ashes
Some will fall in love with life
And drink it from a fountain
That is pouring like an avalanche
Coming down the mountain
If I run across a 7mm-08 barrel I will switch to that chambering
AR 10 in 6.5 CM. But the perfect cartridge for AR 15 is the 6.5 Grendel
I can show you how .300 blk is useful and relevant. 6.5 Grendel is good too. Depends on what yo do. Do you have a AR pistol? That’s where the other calibers shine(9” .300 blk is awesome )
pic you don’t have an ar pistol get a 11.5” 5.56. And a 9” or so .300 blk
What size tires are you using on the carriage?
For the OP: hope you know that most "other brand" AR 10 uppers don't work with the PSA lower.
Just glossed over the .458 Socom for the AR15 (just a upper swap) and enter the AR10 zone?
Like it's been mentioned when slapping one together (upper and lower) buy from the same manufacture. I know a guy who got a 80% that is gonna have a hard time getting the upper even though they claim it's a DPMS based 80%. At least Brownell's got that 100% return guarantee. So he can try fit all of them. Return shipping's gonna be murder.
I got a Mega Arms Maten that is not quite "DPMS" by the tab being 0.221 thick instead of being 0.210 (DPMS) so the hand guard will be staggered (the rail will not be lined up).
https://308ar.com/ar-10-308-ar-compatibility-reference-guide/
left is a 6.5 CM and the right is a 308Win. Both are Armalite AR-10B