T/C breech plug

[ldykeman]

Does anyone have a picture of a cross sectioned T/C breech plug. I have seen the pictures posted of drawings of a patent breech, but I was wondering what a T/C one actually looks like. How deep is the patent breech and where does the flash hole enter into it? I figure with all the years of experience here, someone is bound to have done this.
Thanks,
Larry

 

[roundball]

This is a TC caplock plug...the internals are like the "chambered breech" design in that diagram I posted.

 

[ldykeman]

Thanks for posting the picture. I am somewhat surprised that the recess doesn't get clogged up during an extended shooting session (and mine certainly doesn't). Also, I have owned my Renegade for over 20 years, and have never used a breech scraper and have never had a problem with it mis or hang firing (since I have started storing it muzzle down). I imagine forcing that hot soapy water back and forth through it really flushes it out well though.
Thanks again,
Larry

 

[guncobbler]

But what is it that makes this breech so hard to unseat? My gunsmith tried to do it and gave up. Is there a cross pin that is ground smooth or do they put the plugs in super cold and let the reexpansion to room temperature make the threads an interference fit? I know that TC voids the warranty if you unseat the plug but they go to a lot of effort to make you keep that warranty. GC

 

[roundball]

"...I am somewhat surprised that the recess doesn't get clogged up during an extended shooting session (and mine certainly doesn't)..."

With the right powder & lube, there’s no wiping between shots so no fouling gets pushed down there in the first place.

When a powder charge gets poured in it falls down past what little fouling there is, into the patent breech”¦then when a patched ball is seated it wipes the bore walls and pushes that little bit of soft fouling down on top of the powder charge.

Take the shot, the previous shot's fouling is ejected, and the current shot coats the bore walls with one fresh coat of fouling again”¦the cycle repeats”¦no fouling buildup occurs, etc.

 

[roundball]

But what is it that makes this breech so hard to unseat? My gunsmith tried to do it and gave up. Is there a cross pin that is ground smooth or do they put the plugs in super cold and let the reexpansion to room temperature make the threads an interference fit? I know that TC voids the warranty if you unseat the plug but they go to a lot of effort to make you keep that warranty. GC

There's no crosspin...don't know how they install them but they're not made to be removed unless it's being replaced for some reason...TC does virtually everything at no charge so I personally wouldn't let anybody touch mine except TC

 

[ezyed]

There is a special tool thet you put on the breech and strike with a hammer...and it works good too.