AR Comp work like Auto Comp?

[thompsoncustom]

I was just wondering if AR comp works like auto comp does in that it produces more gas to help work the comp or in this case a muzzle break on my 308.

[thompsoncustom]

Hmmm if no one knows maybe I'll have to see if I can find some and test it out.

[kneelingatlas]

OK, I see it now, it's an Alliant powder; I have nothing meaningful to contribute, carry on

Edited September 2, 2014 by kneelingatlas

[Guy Neill]

I'm not certain I understand what you mean by the two powders working alike. AR Comp is a rifle powder while Auto Comp is a pistol powder. They will each work well in their respective applications, but there is little likelihood you will be able to use AR Comp in handgun cartridges.

Guy

[LoganbillJ]

You need to look at the burn rate and compare it to other powders you are using. You want a slower powder to produce more gas. I do not have any experience with it so no advice there.

[FLSlim]

I can't be much help. Nowhere have I read that it was designed to mimic the characteristics of AC. Rather, it's promoted as being a lower flash/cleaner version of Reloader 15 and is supposed to run best with heavier bullets. Run a google search and you'll probably find many more opinions. FWIW, I've started using AR-Comp early this year when I was running out of 223 powders and it was available. I've been satisfied with it; it meters nicely and produced nice groups with loads from the upper and lower ends of the load spectrum using 55 gr Hornady. I'm getting ready to work on some 69 gr. SMK loads.

[thompsoncustom]

ya i have not seen anywhere either saying it works like auto comp. I have some IMR 3031 that will work just fine with my 230gr bullet as long as the case will hold this monster at 2.799 OAL.

[co-exprs]

Just got word that my club has some AR Comp coming in. I'll be testing in my 308 soon.

[rjacobs]

ya i have not seen anywhere either saying it works like auto comp. I have some IMR 3031 that will work just fine with my 230gr bullet as long as the case will hold this monster at 2.799 OAL.

you trying to shoot 230g bergers out of .308? Good luck.

Those are 300win mag bullets if I am not mistaken.

You arent going to get much velocity loaded to 2.800 because you wont get much powder in the case. Im guessing 2200, if that, before you run into MASSIVE pressure signs. Just a guess.