I use an RCBS power trimmer and the trim mate unit to trim my brass. My question is: When chamferring the brass with the Trim Mate, does it matter whether I go inside 1st or outside 1st. How much do I bevel the neck of the brass? I'd have to admit that I'm not consistent with the length of time or pressure applied to the brass while the cutters are turning.
- Thread starter TXCOWDOC
- Start date
Re: Brass Trim / Chamfer Question
Inside first. Doing the outside just removes the burs from chamfering the inside.
Inside first. Doing the outside just removes the burs from chamfering the inside.
Re: Brass Trim / Chamfer Question
Makes no difference.
You are removing burrs/sharp edge from trimming to length. Many chamfer the inside significantly more than the books say to (myself included), usually with VLD chamfer tools.
The Lyman book says just enough to break the edge or just enough to remove the sharp edge left from trimming.
If you are in need of having to hit the outside from inside chamfering, that's too much.
Makes no difference.
You are removing burrs/sharp edge from trimming to length. Many chamfer the inside significantly more than the books say to (myself included), usually with VLD chamfer tools.
The Lyman book says just enough to break the edge or just enough to remove the sharp edge left from trimming.
If you are in need of having to hit the outside from inside chamfering, that's too much.
