Well I drug the junk out to the range again Saturday, it was 91 degrees so a real cold snap. Luckily I decided to load the whole gambit again. I found that 2400 and #9 will not function the action reliably. It will shuck out an empty but not strip a round, sometimes, other times it opens the bolt and slams the empty back in the chamber, making it then hard to extract / eject by hand. Do not know what it is doing to the brass but it is a pain and it is not like the bolt just jarring open a touch and closing. I would use Unique if function was not required as extraction/ejection is no problem.
With a 3 oz buffer and rifle spring AA 2015 and H-335 functioned the action of my 16 inch with 160s, every time, but H-335 so far has a very high SD of 63-65 fps. AA 2015 however at 12gr ran the 160s at 1024 fps with a SD of 20fps and grouped at .625 @ 50 yards, all round holes with the 1-9. If I can get about 12.3gr to hold together at a low SD and run up to about 1060 to 1070 fps I would like that a lot.
Oh, I am running Win 7.62x39 brass, sized and fire formed with the CCI LR primers.
Ed
With a 3 oz buffer and rifle spring AA 2015 and H-335 functioned the action of my 16 inch with 160s, every time, but H-335 so far has a very high SD of 63-65 fps. AA 2015 however at 12gr ran the 160s at 1024 fps with a SD of 20fps and grouped at .625 @ 50 yards, all round holes with the 1-9. If I can get about 12.3gr to hold together at a low SD and run up to about 1060 to 1070 fps I would like that a lot.
Oh, I am running Win 7.62x39 brass, sized and fire formed with the CCI LR primers.
Ed
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