The Forster 6.5 bushing bump dies comes with three Bushings in dia. .274″, .272″, .270″
This should help, but your neck thickness and uniformity is the deciding factor. Normally you measure the neck diameter of a loaded round and subtract .002 with neck turned brass. And if you do not neck turn and the neck thickness varies .002 or more you subtract .004 and use the expander. Also note that brass spring back after sizing will effect bushing size. Meaning brass that is not annealed gets harder each time it is reloaded and springs back more.
Tech Line & Tips (FAQs)
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