Originally Posted by RangerBrad
If I buy several sizes, how will I know which one is the right one I should be using? Brad
Do the math above to identify the desired bushing.
Confirm by sizing and measuring the neck IDs.
You want the neck ID to be .001-.002" smaller than the bullet diameter.
Larger IDs may lead to loose bullets.
Smaller IDs won't improve neck tension, but it may cause increased runout as you seat bullets.