Too - various with each brand of brass - the thickness of the neck. Even lot to lot varies.Originally Posted by TOO Builder
For calibers that I reload for with bushing dies, I neck turn. Clean up 80-90% of the neck area and call it good.
Load a dummy round, measure the neck diameter, and select a bushing 0.002 to 0.003 smaller. Some brands of brass have more springback then others.
You are on the right track though...your 0.227 bushing is about right. Seems like 0.002" neck tension is the sweet spot.
For the auto loaders and high(er) recoiling rifles that are feeding from a mag or well, 0.002" might not cut the mustard.
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