Home Forums Hunting & Shooting Ask The Gunwriters 280 Ackley SAAMI vs. 280 Improv 40 deg pre-SAAMI

Good timing... I just purchased a barrel chambered in 280 RCBS with dies marked 280 Improved 30 deg.

It's a shouldered barrel I need to install on a Rem 700 LA. How would i go about head spacing it correctly? also, can I fire form 280 Rem brass with it then reload with the dies?


Thanks