02-11-2014, 12:17 AM
Just carefully take take the sharp corners off with a fine file, or even a cotton buffing wheel with polishing compound. Don't go hog wild, just lightly take off those sharp edges, and you will be in better shape as far as treatment of your case rims goes.
If you look at the extractor geometry, and understand how it is basically a claw that pulls the case out by the rim, as long as you don't compromise it's ability to firmly grasp the rim, it will be GTG.
Here's a great article on related AR15 tunings: http://bulletin.accurateshooter.com/tag/ar15/
If you look at the extractor geometry, and understand how it is basically a claw that pulls the case out by the rim, as long as you don't compromise it's ability to firmly grasp the rim, it will be GTG.
Here's a great article on related AR15 tunings: http://bulletin.accurateshooter.com/tag/ar15/