Range Report Hornady Match 195 .300 Win Mag excessive pressure?

JTJACKSON

Online Training Member
Full Member
Minuteman
Mar 25, 2017
28
19
41
SW Va
Shot 20 rounds of this ammo today through pop's win mag. Most were fine, with no pressure signs. Three, however, had very flat primers and dings on the case head. Two had heavy bolt lift (one very heavy). The rounds did not sit in the chamber, and the outside temp was 40 degrees. Was wondering if anyone else had experienced similar issues with this ammo. If you have any ideas, please chime in.

The last time I had shot this ammo was in the summer in 95 degree temps through the same rifle, with no issues. That ammo was of the same lot.