I've got a rifle coming with a few new barrels, one of which is a 6 creed. I've got 100 pieces of factory 6 creed brass and 400 pieces of 1x fired 6.5 creed that I got from a buddy of mine who shoots matches with factory ammo. I have a Redding Comp FL bushing die in 6 creed as I was hoping to be doing brass resizing in one step instead of 2 (I've always used a Redding body die to bump the shoulder and a Lee collet die to do the neck, makes for quite concentric ammo) but I started reading stuff about the expander ball causing runout issues and how guys are removing the expander ball and using an expander mandrel in a separate step. Fair enough.
My question is, is there any issue necking down the brass in the 2 step method (ie bushing die without expander ball followed by expander mandrel) or should I just use the bushing die as intended for the first go around? I plan on using the factory 6 creed brass I have for load dev and to determine the setting for my die to be bumping teh shoulder back the appropriate 2 thou. Thoughts?
My question is, is there any issue necking down the brass in the 2 step method (ie bushing die without expander ball followed by expander mandrel) or should I just use the bushing die as intended for the first go around? I plan on using the factory 6 creed brass I have for load dev and to determine the setting for my die to be bumping teh shoulder back the appropriate 2 thou. Thoughts?