Thanks for the reply's folks. Given me the answers I wanted/needed. Course of action will be to do up a dummy round and also specify chamber clearances I want (Norma brass, no neck turn). I am also thinking that since this will only be a 600-800 yard gun I may stick with the 180VLD's. In Wyoming a "breeze" is 15-20 mph so any farther than 6-800 yards I will be using a win mag with 215 Bergers. Thanks all, I appreciate it.