I have an Argentinian Model 1909 Mauser, which was rechambered to 30-06 at some point. Since it retains the original bore diameter, accuracy is dismal. After much procrastination, I finally produced some test rounds, featuring pulled 7.65 projectiles, as well as some with coated .313" pistol boolits that I happen to have an abundance of (78 grain round-nose, used for my various 32 caliber handguns). My problem is that the necks are now too fat for the rifle's throat. I've tried to thin the brass, but I cannot remove enough material to permit closoing of the bolt.. My first thought was to have a local gunsmith open up the throat a bit, but what about using a heeled boolit? I understand that removes surplus j-words from consideration, but the rifle is only occasionaly used for casual plinking, and spends most of its' time looking pretty on the wall.