New Lyman GPR .54 flintlock

[Jim Evans]

What is the twist ?

 

[zneufeld]

What is the twist ?

1 in 60

 

[Twowithone]

Finally got the GPR out for its first spin a few days ago (photo in a new thread).

Did a thorough cleaning when I got it home (hot water with a little dish soap, then Ballistol and dry). I found a shallow hole on the back of the hooked breech, and I can't seem to find out what it is. It's not indicated on the parts diagram. I can't tell if it is threaded, and it doesn't go through to the bore.

I'm sure someone here knows what it is.

View attachment 56691

Dont know the affects but they say when you use hot water to flush your barrel and put the barrel in the corner to dry thats when the flash rusting takes place.

 

[zneufeld]

Dont know the affects but they say when you use hot water to flush your barrel and put the barrel in the corner to dry thats when the flash rusting takes place.

I always dry with patches right after a hot water rinse, then a patch with Ballistol and dry with more patches, then a little Bore Butter.