AR Comp powder 308 load

[reeljob]

I test fired a new load this morning in my Remmy 5R 20".
Lapua brass
2.80 OAL
GMM 210
178 Amax
40.7 grains AR Comp powder
distance-- 100 yds 5-shot string
Did not chrony this load but I expect velocity 2500-2600 fps.
Left one ragged hole in the paper, very impressed so far.

Anyone else using this powder in a .308 bolt gun?

 

[gunnut223]

Re: AR Comp 308 load

I have single shot 308, and use AR COMP for my 223 and 308. I dont chrony my rounds, but i get as good of groups as my IMR powders. Both a good choice.

 

[eternal24k]

anybody else using AR Comp in a bolt gun for .308?
I have a few lbs, looking to try it in .308

 

[FLIGHT762]

24" Hart 1-12" barrel. 175 Nosler OTM: 41.0 AR Comp AVG 2653 FPS ES-28 SD- 11
155 Nosler OTM 43.0 AR Comp AVG 2850 FPS ES-10
Both are accurate loads.

 

[poke5353]

I have had great success with AR-Comp in 308 using 175gr smk and 155gr smk palma. Also it works great with 223 and 223AI. I have been getting very good results. It is now my go to powder when I can find it.

 

[Drifter™]

At the risk of sharing the obvious, link to 308/AR-C load data from Alliant:

Alliant Powder - Reloader's Guide

 

[jwp6114]

Bought 8 pounds when varget started to get scarce, haven't cracked it open yet...

 

[vagrendlier]

I know this is an old post but , is anyone running ar-comp in a .260?

 

[Pinecone]

As I understand it, AR Comp is RL-15 with less temp sensitivity.

 

[FLIGHT762]

As I understand it, AR Comp is RL-15 with less temp sensitivity.

I've been using AR Comp for a while now in the 308 Winchester. I also use Reloader 15. This is my observations. AR Comp has a burning speed near IMR 3031.

Reloader 15 has burning speed is near IMR 4064. I use 43.0 of AR Comp with a 155 bullet to get near 2900 FPS. For Reloader 15, I use 46.0 grains with a 155 bullet for similar speeds. AR Comp is definitely a fast burning powder than Reloader 15. I also started using AR Comp for 175 gr. bullets. AR Comp maxes out at about 41-42 grains.

AR Comp has become a favorite powder of mine.

 

[RyeDaddy]

I've been using AR Comp for a while now in the 308 Winchester. I also use Reloader 15. This is my observations. AR Comp has a burning speed near IMR 3031.

Reloader 15 has burning speed is near IMR 4064. I use 43.0 of AR Comp with a 155 bullet to get near 2900 FPS. For Reloader 15, I use 46.0 grains with a 155 bullet for similar speeds. AR Comp is definitely a fast burning powder than Reloader 15. I also started using AR Comp for 175 gr. bullets. AR Comp maxes out at about 41-42 grains.

AR Comp has become a favorite powder of mine.

What barrel length?

 

[FLIGHT762]

24" 1/12" Hart.

 

[gigamortis]

I haven't been able to find any AR-Comp powder anywhere in the past year or so. It's almost as if Alliant stopped making it. I have been wanting to try some in my 20" .308 Savage for a while now.