Drill outthe breech plug and use 25 acp brass than you can custom fit it to the gun and eliminate blow back. That is what I did with my encore works fine now.

John, I've considered that but lack the proper equipment, the acp stuff, and the talent. HalfNutz, I thought of doing that but think there must be a better way than exposing internal threads directly to the combustion. SL, yes, makes absolute sense and I considered that butit would require a whole new set of datadetermined usingthis particular breechplug. We need some tiny compression seals that fit inside the primer pocket of the plugs.

oh.... is there any remaining doubt?

UnderclockedAre you using teflon tape like Sabotloader uses that might back it up a bit and still keep it sealed. I would also call Knight with the diamentions of the plug could be a combination of tolorances adding together and they might just hunt up on on the other end of the tolorance for you. Lee

Not completely like SL uses it, but yes, I overlap the nose and press it down so that it will make a seal. A second wrap there might help. Knighthates me.