J. David

I think it is just rust and some cracking on the finish that they put on that plate. As mentioned, I assembled this like 20 years ago...

You guys are awesome. Thanks. I must have lost the fly right off the bat, The gun would hang up on the half cock when fired. I remember...

Parts from Lyman or log Cabin Shop?

Top picture is full cock and bottom pic is the half cock. I remember now that when I assembled the rifle 20 years ago it would catch on...

Yea, it don't look like that.

Well I just remembered or discovered one problem. I had been using musket nipples. I put the standard nipple back in and it half cocks...

Probably 4 years ago. Last time I shot it.

I have not shot my GPR for a long time, is it supposed to have a half cock? if so I guess it's broken.

.58 for me. But if he takes too many liberties with the design, I'll stay with the Hawken Shop.