sizing 22-243 brass back to 243

[mattlewis]

i have lapua brass that has been reformed to 22-243imp. can i expand with a K&M, then FL resize and be ok? or are there issues i need to be aware of?

 

[fdshuster]

Matt: Depending on the number of firings as a 22-243 you might want to consider annealing the case necks before you open them up to .243. If only 1 or 2 firings, you may get away with not annealing, more than that & you can expect some neck splits.