continuing saga of the 280 rem
varian Member Posts: 2,167 ✭✭✭✭
edited June 2017 in Perry Shooter Competition Shooting and Reloading Forum
so after getting my powder situation straightened out i started to reload for the new to me 280. loaded a case using a sierra gameking 150 gr. my manuals state min cart length of 3.330 to 3.30. loaded a round at 3.30. had a hard time closing the bolt. ejected the round and could tell the bullet was engaging the rifling. checked some rem. 165 gr factory rounds and found they measured anywhere from 2.52 to 2.65. started adjusting bullet seating depth and testing in the rifle. found i had to be at 2.65 for the bullet to just touch the rifling. am i doing the right thing here? if so why do the books state that min col is 3.330. i load for a lot of different calibers and have never had a col problem.