03-14-2011, 12:53 AM
rasp65 Wrote:I dont have that problem with mistaking 6mm AR but I wish I did. These were brand new cases, all I did was to run the expander ball in the necks and I turned it out as far as I could so I wouldn't touch the necks with the die. I reloaded them with a lighter charge and am contemplating shooting them. What do you think?
Rasp:
Hmmm. More information or perhaps I didn't see it all before. I think I know what you were doing now. You were just truing up the inside of the necks using the expander ball without using lube or full length resizing?
If you didn't lube the inside of the necks prior to doing this, most likely the friction caused a lot of force to be pushed down on the shoulder. A dry expander ball being pushed through a dry neck can cause problems.
If you want to size the brass or true up the necks, lube the brass and full length resize. It won't hurt a thing and certainly won't cause accuracy problems.
I know -- carbide expander ball. Doesn't matter. Lube the brass before working any part of it.
Might as well shoot them if they chamber and the bolt goes into battery.
Then lube and size using the entire sizing die. Bet it won't happen again.
LR1955