I realize a better optic would very likely have helped but this early in the game I'm basically looking to see if this even has a change of working.Īll 4 powder charges ran the rifle with bolt lock back. All the testing was at 50 yards.Īs a base line he fired a 10 shot group with our plinking load which is 22gr of WC-844 with Hornady 55gr FMJ. My son who in on rifle team at school did all the shooting. I didn't start with it wet but had it in mind and did have to lube it to get function with the 15gr and 16gr RL-7 loads. For this reason I kept the action wet with CLP while testing. This upper had only about 50 rounds fired from it before today. Optics:TruGlo red dot with 2.5 MOA reticle. Rifle: Hardened Arms 16" with 1-9 5.56 chamber. The heavier lead bullets make it easier to find a load that will cycle the ar's. It's a 80gr bullet with a flat nose like the bullet your using with a bevel base and no grease groove. There's been some talk over on the castboolits website about a bullet that looks promising. I've been looking at molds for the 223 and really haven't seen anything I like. They age hardened and were a lot harder to size. 10 day later I found them and sized them. I did a batch and got busy doing other things and forgot about them. If you size them right after they are water cooled it's a lot easier. Then test/push that bullet harder/faster until it fails. If the groups shrink with one of the harder/larger bullets. If there's no changes in group size that tells you your alloy is good for the load/pressures your using. Testing a harder bullet with a larger diameter. The end result will be re-testing your best load + using it as a baseline. Test a load using the un-sized bullets also. They really look like red lipstick.Ĭoat another batch of bullets this time water quench them when they come out of the oven and size 1/2 of them the same as the test bullets above. On a side note I loaded some 340gr Lee 45-70 too for the first time. I don't know if that's enough to go kaboom with a cast bullet but don't want to find out either. The casing will also hold 27gr of it so if for some reason you had an overcharge you could possibly get about 3grs over max jacketed data load. The casing will only hold about 27gr and max jacketed for a 55gr bullet is 26gr. The nice thing about using H-4895 is you can't make a over pressure load. I couldn't find cast data to support this but did find jacketed data and used Hodgdon's 60% rule for reducing H-4895. The Lyman cast bullet manual supports this. I'm sure this is from tip compression from sizing bottom end up. I did notice a slight difference in OAL between the checked rounds and the un-checked. I have 4 loads to shoot with and without gas checks.
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