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BCM
Durkin Tactical Franklin Armory
User Panel

Posted: 11/27/2014 1:32:27 PM EDT
Can I use heavy/long bearing surface bullets in an AR10 pattern rifile?

I have lots of 175's, 190's and 208's I was hoping I could use but do I need to keep it down in the 147gr range?
Link Posted: 11/27/2014 1:52:48 PM EDT
[#1]
As long as it fits in a magazine (nominally 2.830 +/- .030") it will fire and function.  Since there's no piston or rod it should work fine.

Stick to medium-speed powders -- too slow (like Hornady Superformance) and you risk ripped rims and blown primers.
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