Originally Posted by Broz
Have you tried seating another new primer in any of the cases you shot the 94 gr load in? Might be worth shoting the same case 2 times with 94 gr and see how the primer fits after that. Also if it was 60 degrees or lower you might be over pressure on an 80 degree day. But that may not matter if you never shoot on hot days.
These are just a few things I have seen with a Lapua , Edge and a 338 RUM with 300 gr bullets. I have found 92.5 gr to be plenty and most Rem cases would not last with that.
Yes I shoot 2 reloading with 94gr and no loose primer pokets.
I also stepped up a t 96gr and no pressure. I was shooting them at 100F and 86F.
with 93.5gr I got 2884fps and at 200yrs got 2 rounds touching and one flyer., so I stepped up to 96gr, but the group oppened up.
When did you noticed best accuracy with H-1000? At 90 - 99% case fill-up with powder?