by Seismic Sam on Mon Jan 06, 2014 12:02 pm
Like I said, JB Bore paste is just abrasive enough to clean rifle bore to a mirror finish after maybe 20 - 40 strokes. Obviously, if it were too aggressive it would contribute to bore wear, and nobody would touch the product. As such, with a hardened die, you can polish and polish and polish with a felt bullet and JB and you won't change the dimensions od the die. When I go to dehorn a new breechface and ramp on a barrel with JB, it's going to take the better part of an hour to get the job done, so it's pretty much OOOPS! proof. As long as you STF away from aluminum oxide stones, it's hard to EFF it up. WITH an aluminum oxide stone, you know it will grab a corner and run off and scratch an area that you didn't want to work on in about 5 seconds flat. The only real use for dremels with hard stones is by Austrian trolls who are distant relatives, and have to grind the **** out of the bottom of the chamber area on Glock pistols. They have to get a certain number of grams of steel off per minute to keep up production, and if they don't Gaston himself comes into the cave with a taser to sort them all out.