Re: Neck size or full length size for AR 15?
I have been using the RCBS FL, X dyes for about 4 years with 3 different AR rifles. Never trimmed, no failures to feed. I was skeptical about the x dye which maintains the OAL of the case each time the case is sized. It works. I get over 10+ reloads per Lapua case. Just need to follow the instructions on the initial set up od the dye.
"Let us speak courteously, deal fairly, and keep ourselves armed and ready"-T. Roosevelt