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4570tc

40 Cal.
Joined
Jun 19, 2009
Messages
291
Reaction score
4
They were a nice little gun. But can anyone remember what the Thread size and TPI was on the 45 cal barrel??
 
Mine has 5/8 18 for the breech plug, but not all do. This is by memory which isn't always right.
 
Nipple or breech plug threads? Nipple is 12-28. There has been some debate on the breech plugs threads depending on date of manufacture. Suggest pulling and measuring.
Yeah. this one has sat so long, I will have to mll flats on the patent breech to get a grip on the plug.
 
I got lucky! years ago I bought a TC breach plug wrench. it did not fit the Hawkins. so into the drawer it went! 30 - 40 years go by, and I tried it? IT FITS THE SENECA!!!!! And the TPI DIA is 5/8 18!

Thanks for your reply's!!!!
 
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