Does anyone know the inside diameter of the flash channel and flash hole of the TC Encore Pro Hunter Speed Breech? I use BH209 and their website suggests to hand turn a drill bit in the flash channel to clean out any built up fouling to maximize the performance of the BH209. The BH website says that Thompson Center breech plugs have 1/8" diameter but I can't get a 1/8" drill bit to go into the flash channel.
