12-25-2018, 07:37 PM
Thanks FRB, I’ll look into all of those mentions. I have to report, with my 2nd test, things went much better.
1st off, my reloads. I was trying to use up some powder I was given, IMR-4198, rather fast rifle powder. I also used some 90 grain bullets. Reading elsewhere I saw mention of using a slower powder & heavier bullets.
I did another test batch with 100 grain bullets, and a upper loading of Ramshot TAC(30 grains)I think all 10 cycled fine, one failed to strip from the magazine, not a load issue. These rounds did not lock the bolt back on the last shot, the factory rounds did. Both ejected near the same distance, not real far, 4’+ a bit estimated.
I also used 2 other magazines, lubed them again before hand. The grouping was pretty good, casual testing. My lower should be broken in just fine, it’s part of a custom midweight setup I use for prairie dogging.
It still bugs me that the set screw in the gas block is so tight. I should be able to deal with that. I gave things a good cleaning and lube before I shot, but my next step with be another detailed internal cleaning and checkout.
Anyhow, on the upswing I think.
1st off, my reloads. I was trying to use up some powder I was given, IMR-4198, rather fast rifle powder. I also used some 90 grain bullets. Reading elsewhere I saw mention of using a slower powder & heavier bullets.
I did another test batch with 100 grain bullets, and a upper loading of Ramshot TAC(30 grains)I think all 10 cycled fine, one failed to strip from the magazine, not a load issue. These rounds did not lock the bolt back on the last shot, the factory rounds did. Both ejected near the same distance, not real far, 4’+ a bit estimated.
I also used 2 other magazines, lubed them again before hand. The grouping was pretty good, casual testing. My lower should be broken in just fine, it’s part of a custom midweight setup I use for prairie dogging.
It still bugs me that the set screw in the gas block is so tight. I should be able to deal with that. I gave things a good cleaning and lube before I shot, but my next step with be another detailed internal cleaning and checkout.
Anyhow, on the upswing I think.