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Posted: 2/9/2013 7:23:01 AM EDT
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I did a search and only found a couple of old post's.
Have any of you guy's used the AR-Comp powder. I need something for 55gr. I'll be shooting it out of my 16" rifle length gas dissy. I wonder how this will perform. I'm also wondering if it will meter well out of my Hornady powder measure. I talked to one place that said they sell very little. That has me worried. But that might be just because it's a realitivly new powder. But they have some in stock that I could buy. And we all know how tough it is to get anything right now. So what do you guy's think. Good to go,,,or pass. Thanks |
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A friend and I just picked up a pound of it yesterday at Palmetto State Armory for the Hornady 55gr bullets. We've been loading with Varget, but just gonna try something else since they didn't have any. I sold my Chargemaster under dire financial circumstances, and now I'm using a powder measure and want something that might meter better, and this should.
I would imagine that any new powder that is specifically marketed for the AR15 in 5.56/.223 will have been thoroughly tested to be very accurate and give good velocity. I like a lot of Alliant's powders, this should be really good as well. Supposedly it is a reformulation of RE 15, but more temp stable. The burn rate is also supposedly right close to Varget. Re 15 meters like water, really easy, so this should be as well. Personally, I would wait til Monday and call Alliant and speak to a tech, and call Hornady ( if that's what you're loading, if not the bullet company ), and do the same. Give them the rifle info, the components etc. |
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I'm going to say that's max, probably around 57-58K . From what I've seen so far, it's basically about 2gr lighter than the Varget load for the same pressure. My Varget load is either 26.5gr or 27gr.
I'm still going to make two phone calls Monday myself, but if I wasn't going to make those calls, I would start around 23gr and go up from there in .3gr increments looking for good cycling and pressure signs, while doing a ladder test. possibly using a chrono . I've never been one to be able to chrono a load and do a ladder test at the same time though. I usually do them separate. |
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I like it so far! I've been trying to find a temperature stable powder for my 3 gun load, as we have matches year round. A few weeks ago I worked a load up to 25 grains with the Hornady 55 FMJBT and CCI 41 primers. I was getting 2888 @ 12' out of a 16" 1:7 barrel, SD: 10.9, ES: 28.9 when it was 25 degrees out. The group was 1.14 MOA. It may group better, because I was shooting the groups with my SCAR that is topped with a Aimpoint 4 MOA red dot. I found that it measured very well out of my Dillon powder measure +-1/10 a grain. The load is "accurate enough" for 3 gun, (usually my poor shots are due to my fault not the gun's, ammo or optics!) Although I must admit, I'd like a little lower ES. |
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That's what InfidelJoeBob and I are doing. Trying to get a good load worked up so we can place a bigger order at Powder Valley. I might load some up with H322 anyway, since I have it for my 6.8 and it works well with the 110gr Hornady OTM. If that works out, it would make it easier to just buy a bunch of it. The previous load was Varget for the .223, but I wanted to try TAC if they didn't have any Varget, but they were out of TAC as well.
Has anyone used any AA2200 with the .223? So far that's the most broad operating powder I've found in the 6.8. It will get close to the Re7 velocities with the light bullets, and is superb with anything from 95gr -120gr. It works for the 140gr as well. If that worked for the .223, it would be good. |
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