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Old April 12, 2006, 01:25 AM   #2
Dfariswheel
Senior Member
 
Join Date: May 4, 2001
Posts: 7,477
You chamfer chamber mouths BY HAND with the Brownell's piloted cutter, NOT in a drill press.

When chamfering, REMOVE the ejector assembly or it'll be ruined.

Chamfer the absolute MINIMUM you can get by with.
Over doing it reduces case head support and can ruin the cylinder.
All that's really needed is to just break the sharp edge.

To bevel the mouth, insert the pilot into the chamber, and turn and press with even, firm pressure.
You want to make a smooth, even cut without any scalloping caused by uneven pressure.
Don't use too much force, let the cutter do the work.

Try to cut all chambers to the same depth.

Don't get carried away.
It takes remarkably little bevel to do the job, and MOST people cut too way much the first time out.

If you didn't cut quite enough, you can cut a little more.
However, you can't put metal back if you cut too much.
QUITE while you're ahead.
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