That turned out looking good!
Thanks, I'm glad my time spent worked out. Hopefully if I take my time, and can keep most stuff looking good even though I'm new to a lot of these processes.
45,
I am very impressed with your attention to detail and your use of additive manufacturing methods to make your jig. I am doing a breech-plug fitting demo at Kempton this coming weekend. It is scheduled for Sunday morning. I use just hand tools, no lathe, and it takes about an hour to do.
I must take issue with a couple of statements made in this thread, straight threads do not seal, there is always a minute gap between the male and female threads on straight threads. The objective of the shoulder is to seal against a perpendicular face of the breech plug, Since relatively soft metals are used for both the two surfaces will deform slightly as the plug is tightened up and as long as there are no burs or other irregularities, the seam between the two parts will be adequate for the momentary pressurization at black powder pressures.
Good luck with your rifle build. this stuff is fun, isn't it?
JMC
Good luck with the class. Hopefully the next time I do this, it'l go faster. I'll probably have the money for a swamped barrel next time, so the breech end plug will probably be bigger compared to the bore, will be a lot easier.
It is a lot of fun when you're making progress and have a clear path forward. I should probably start a build thread for this gun, if only to log my mistakes for next time.
