04-19-2021, 12:33 AM
Ugh. GiGi's spare bolt will lock down on her sized brass but has a tough reopen. A few pieces required a few light taps with yee olde rubber mallet. Bumped a few pieces down 0.005" and all good. Headspace of the spare (a Spikes) is inside the sheared Toolcraft. Should be fun pulling the 110 match rounds I have, bumping and reseating. Looks like I'll have some good practice rounds!
Do not attempt Berger 65 gr BT's in ARC! Did further testing in my 6x45. SD of 4 at 3200. 3 shot groups were 1/2 MOA or better. The problem is I was shooting five shot groups and there would be 2 which were 2-3 inches away from the others in any given direction (and never both in the same direction). Got home, just barely seated one, put it in the chamber and slammed the bolt down. Jump was over 0.15" from what I had loaded at max mag length. Jump will be worse in ARC. Bearing surface is only .202" so I'm guessing if they don't jump perfectly, they wobble down the barrel and beyond. The 80 gr SPs from American Reloading with squished tips actually shot much better overall groups -the "flyers" were less frequent and didn't fly as far from zero.
And Nozzie's 5.56 barrel appears to be shot out. Not the market to be looking for the replacement you want!
Do not attempt Berger 65 gr BT's in ARC! Did further testing in my 6x45. SD of 4 at 3200. 3 shot groups were 1/2 MOA or better. The problem is I was shooting five shot groups and there would be 2 which were 2-3 inches away from the others in any given direction (and never both in the same direction). Got home, just barely seated one, put it in the chamber and slammed the bolt down. Jump was over 0.15" from what I had loaded at max mag length. Jump will be worse in ARC. Bearing surface is only .202" so I'm guessing if they don't jump perfectly, they wobble down the barrel and beyond. The 80 gr SPs from American Reloading with squished tips actually shot much better overall groups -the "flyers" were less frequent and didn't fly as far from zero.
And Nozzie's 5.56 barrel appears to be shot out. Not the market to be looking for the replacement you want!