I'm finishing up a 14.5" pinned/welded AR build and planning to reload for it. I use Hodgdon Benchmark right now for my 223 bolt gun 55 and 62 gr loads but I'm thinking that a faster powder will work better for me since I have a short barrel. How do you determine witch powder to test out? I'll be using LC brass CCI #41 primers and Hornady 68gr HPBT match bullets. I'm thinking about testing Alliant AR-COMP but its not listed on the burn rate charts that I've seen on accurateshooter.com.
Powder for 14.5"
- Thread starter HCICVOGT
- Start date
H335, 8208 XBR, Varget, Are pretty much the go to.
I personally use H335 but I just dumped 25 grains in with a 55 grain and went to work. It works well enough to hit anything I want with an AR. Not much load development involved.
I personally use H335 but I just dumped 25 grains in with a 55 grain and went to work. It works well enough to hit anything I want with an AR. Not much load development involved.
I'm not sure ar comp is any faster than benchmark. Benchmark is a fairly fast power for 68gr bullets.
Most of the speed is gained in the first few inches. So unless you are shooting a snub nose magnum the powder that gives you the most velocity will do so in basically all barrel length situations. Pick the ideal powder for the cartridge/bullet weight, not for the barrel length.
Arcomp is pretty comparable to varget. So its a fine fit.
Arcomp is pretty comparable to varget. So its a fine fit.
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I got 25.3 under a 62 grainer as my plinking load. 2850-ish with a SD of 25. Matches my TA31RCO on full size IPSC steel well enough out to 500 yards. Done deal.
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