bullet seating problem
mbsams Member Posts: 1,076 ✭✭✭✭✭
edited July 2010 in Perry Shooter Competition Shooting and Reloading Forum
Trying a new bullet for my .280 Ruger 77 MKII. The Hornady 139gr Soft Point flat base with a cannelure. Seated to groove and COL is 3.335. Just over or just under max col depending on which book I look in. But correct for this bullet in some of my books. Problem is - the round won't chamber - runs right into the lands. I have to seat down to 3.300 to be a few thousanths off the lands. But now I can't use the crimping grove - if that's what it is. Comments?