I only shoot on a BH209 or smokeless fouled bore. Even with BH209 all i do is fire 2-3 primers and run a dry patch so it has a little bit of fouling and i so i know the breach is clear. I probably would not leave Pyro fouling in a bore for too long in any kind of humidity.
Last edited by Gm54-120; 09-28-2013 at 07:59 PM.