Primer pocket Gauge

The primer pocket reamers from Forster and others are actually gauges of a sort, use one and all the dimensions will be right. You can make depth measurements with a vernier, or depth Mic., the latter is an expensive proposition. Dia. measurements can be made by vernier, inside mic., telescoping gauges, ball gauge, bore mic., etc.
 
The primer pocket reamers from Forster and others are actually gauges of a sort, use one and all the dimensions will be right. You can make depth measurements with a vernier, or depth Mic., the latter is an expensive proposition. Dia. measurements can be made by vernier, inside mic., telescoping gauges, ball gauge, bore mic., etc.

Only if your pockets are not too big/deep to start with.;)
 
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