Well I bought Grouse's Triumph - said I wouldn't but I did...
Playing around with the Speed Breech today I think I made a discovery on my own... use guys that have been using the speed breech probably already know this but fer us beginners...
On the tip of the breech plug are the metal 'gas seal' rings... Well there are three of them rings with a breeak in each ring... To me they are nthing more than compression rings that you would put on a piston in a car... and how many times I was tolt by my dad "do not line the breaks in the rings up" Well these ring are loose and can be roted around fairly easily. As I looked at my plug to of the rings were lined very wel and the thrid one was just off set a bit. I took a needle tip and re-arranged the split in the rings so that they were amost opposit of each each. This really did/should help any blow back from escaping back up the BP. I also am using a teflon wrap on the BP to help provide lubrication and additional seal if it were needed. I hate grease in the BP barrel threads...
This pic shows the ring gap...
Speed Breech - wrapped - probably not necessary - just extra insurance