Author: porthos
Subject: "o" rings for fireforming brass
Posted: October 10 2019 at 4:53pm
one of the popular ways to fireform 303 brass is to use a O ring in front or the rim and shoot a light load. this is supposed to give the best fireformed brass that is less likely to have head seperation. i have a couple of questions about this process. first, is there a certain size "O" ring to use. and next, by using the O ring; would the shoulder be driven foreward and need to be pushed back in sizing??
Subject: "o" rings for fireforming brass
Posted: October 10 2019 at 4:53pm
one of the popular ways to fireform 303 brass is to use a O ring in front or the rim and shoot a light load. this is supposed to give the best fireformed brass that is less likely to have head seperation. i have a couple of questions about this process. first, is there a certain size "O" ring to use. and next, by using the O ring; would the shoulder be driven foreward and need to be pushed back in sizing??