statjunk

I loaded up the same stuff he had except I loaded it to 3.40 instead of 3.83 oal. Mine shot just as good as his did. Actually both his reloads and my reloads resulted in very similar groups. About 3/4" left to right. One other thing worth mentioning is that, the guy, full length sized and I neck sized and the groups were about exactly the same.

I need to get these bullets in the magazine and 3.40 is the longest that will fit. I measured the head space some time ago and it was much longer than the magazine would hold. Don't remember what that spacing is though?

What is COL and runnout?

Thanks

Tom