Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!think.com!zaphod.mps.ohio-state.edu!uakari.primate.wisc.edu!aplcen!boingo.med.jhu.edu!haven.umd.edu!mimsy!bevsun.bev.lbl.gov From: bercov@bevsun.bev.lbl.gov (John Bercovitz) Newsgroups: rec.guns Subject: bore guides (was a comment about rifle/pistol cleaning) Message-ID: <34837@mimsy.umd.edu> Date: 24 May 91 04:18:57 GMT Sender: magnum@mimsy.umd.edu Organization: Lawrence Berkeley Laboratory, Berkeley, California Lines: 11 Approved: gun-control@cs.umd.edu In article <34821@mimsy.umd.edu> hes@ccvr1.cc.ncsu.edu (Henry E. Schaffer) writes: # Cleaning guides are made both for the muzzle (needed for many/most) #semi-automatics, and for the breech (convenient for bolt action.) Does it ever bother any of you folks that the cleaning guides to be used at the muzzle employ a convex cone rater than a concave cone? I wonder how much good that convex cone rubbing on the crown does. I guess if the wear is completely even, it won't hurt anything - that would just alter the configuration of the crown, not its symmetry. JHBercovitz@lbl.gov (John Bercovitz)