The truth; It's what I have as a stick pwd. Got some H335 I'm going to try and some 8208, hopefully tomorrow.
22 Nosler beating the hell out of my brass
- Thread starter Capt45
- Start date
Yes in this day & age we have to pretty much use what we have on hand. H335 is a flattened ball powder, not stick. I have always had good 223 results with Varget (#108 on the chart) a stick powder. IMR 8280 is a short stick powder. Good luck with your loads.
OFG
OFG
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If you look back in the thread, I started with Varget with 55gr bullets, and it worked fine, it's when I went up in bullet weight AND using BL-C2 that the brass took a beating. I now have some 75 and 80 gr bullets I'm eventually going to get around to shooting.
The Varget mention was pretty far back and my memory isn’t what it once was. As a matter of information I load 107 grain bullets with Varget in my 260 and H4350 (slower) for 130 and up. Generally heavier bullets do better with slower powders.
OFG
The problem is the increased bolt thrust on a reduced area. Part of the equation for bolt thrust is the diameter of the case, the larger the diameter, the more thrust. In the event that case head is the same diameter, that thrust is distributed over a wider area, in the case of a rebated rim, that thrust is concentrated in a smaller area. In addition, the AR platform begins unlocking when there is still significant pressure on the bolt face, not usually an issue but with the increased bolt thrust concentrated in a reduced area, it is an issue. (which you already know, per your post)
This isn't a problem with a bolt gun, as the pressure is zero when you open the bolt.
Do you cycle your no gas ar manually? If so, you have answered your own question.
The NOS-GAR solution is the best if you are looking for the small capacity increase over the valkyrie, otherwise, in an AR, go valkyrie and avoid the problems.
I built my 22 nosler on a remington bolt action I had laying around. We throated it long and seat the bullets out. 3100 with the 80's is VERY easy to accomplish. I tried the 88 eldm at 3000 but couldn't get them to shoot (1-7 twist).
I use 6.5 sta-ball powder, works very well with the heavy bullets.
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Could one of those dual ejector BCGs that KAK makes fix the issue? My 22 CM AR10 used to do that same thing, even with an AGB and heavy buffer. I got one of the Toolcraft dual ejector BCGs and never had an issue again.
Or is that round just NOT suitable for the AR15 platform?
The best solution I have found to not destroy brass is a +2 gas system, heavy buffer and spring, and staball match powder. My proof 20” +2 gas barrel is stupid accurate and doesn’t beat the hell out of brass. I push the 53gr vmax with staball match at 3550 FPS and I’m on the fifth firing with dog town brass and still going strong. I have tried other powders and would get ejector swipes occasionally but staball match seems like the golden powder for the 22 nosler.
I shoot 33.5 grain of CFE223 out of my 22 Nosler with 52 gr ELDM at 3550, just below ejector swipes and pressure signs. I just built a 22 ARC to see if I could get 22 Nosler velocity. I'm able to get 3550 with the 22 ARC with CFE223 and the same bullet and no pressure. I have a little case capacity left and with 50 gr Nosler ballistic tips I should be pushing 3600. Coyotes worst nightmare.
I played with the 73 eld a little and had great results but this guns primary use is coyote termination so stuck with the 53 vmax.
Nope, that's kind of the issue with the 22 Nosler. They made the case too long to fit the 75-90gr (other than 75gr bthp and 77gr smk, etc. designed for 5.56/.223) bullets at mag length. Can certainly single load, though.
Might check twist rate compatibility, too. IIRC SAAMI was 1:8 (not a big deal up to 77gr) or 1:9 on the Nosler, which is going to have issues with anything over ~65gr.
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