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Jimro · January 22, 2013, 05:13 PM

I use it with heavy bullets (75 and 80 gr) for my AR-15 service rifle load, but not in an M1A (which I don't have, although I do have an M1 which I feed IMR4064).

The burn rate is a tad slower than Reloader15 which is used in M118LR, and depending on the burn rate chart it is either faster or slower than IMR4320, so you are at the "ragged edge" of an appropriate burn rate for an M1A. Although lots and lots of M118LR has been shot through M14s and M1As I wouldn't do a load workup without an adjustable gas plug.

I would suggest a faster ball powder, AR-Comp, Win748, or CFE223.

Jimro

January 22, 2013, 05:13 PM	#3
Jimro Senior Member Join Date: October 18, 2006 Posts: 7,097	I use it with heavy bullets (75 and 80 gr) for my AR-15 service rifle load, but not in an M1A (which I don't have, although I do have an M1 which I feed IMR4064). The burn rate is a tad slower than Reloader15 which is used in M118LR, and depending on the burn rate chart it is either faster or slower than IMR4320, so you are at the "ragged edge" of an appropriate burn rate for an M1A. Although lots and lots of M118LR has been shot through M14s and M1As I wouldn't do a load workup without an adjustable gas plug. I would suggest a faster ball powder, AR-Comp, Win748, or CFE223. Jimro __________________ Machine guns are awesome until you have to carry one.