Re: Measuring for Bushing Size. Help!!
Well the easiest way to do it is to measure the outside neck diameter of a loaded round and subtract the bullet grip you want.
When you said
"I measured the diameter of the case neck after reloading with a Lee Collet Die."
did you mean to say after RESIZING with a Lee Collet Die? I think Mike thought you meant after seating a bullet but then the Lee Collet would be confusing.
Anyway, seat a bullet, measure the outside neck diameter with a caliper and subtract the bullet grip, usually .003". For instance if the OD of the neck was .312" then
get a .309" bushing and you can also get a .310" bushing to give a little lighter grip if you want.
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