Re: Enlarging case neck size
If you have a 'standard' die with a 'normal' expander, run the expander through.
Collet sizing them may not open them as far as you are used to but they will be uniform.
Using a pre-turning expander then bushing sizing will work but works the brass one extra time.
Load em and try em. If they shoot the same, forgedaboudit!
Fred Seaman - NRA Life Member
“Ask, Listen, Learn, Grow”
"Quit worrying about the little things, good luck and god speed"