Correcting breech spacing

[redcoatrifleman]

Working on a project gun I didn’t build. Barrel looks like it wasn’t inlet correctly as there is a gap between the stock and breech (see below pic). What’s the best way to correct the problem?

 

[The Crisco Kid]

From the photo zoomed in it looks like it may just be the top part of the wood rounded off. I would check the rest of the breech area to see how it mates up. A little lipstick on the metal will tell the story. If it looks tight there don't worry about it. If it's loose you can epoxy in some shim stock or wood towards the bottom of the breech area. Just don't let any epoxy show on the top or it will look like a cheap job forever. From here the gap just makes it look old.

 

[Johnny Too-Tall]

From the photo zoomed in it looks like it may just be the top part of the wood rounded off. I would check the rest of the breech area to see how it mates up. A little lipstick on the metal will tell the story. If it looks tight there don't worry about it. If it's loose you can epoxy in some shim stock or wood towards the bottom of the breech area. Just don't let any epoxy show on the top or it will look like a cheap job forever. From here the gap just makes it look old.

Yeah what he said. I'd just let it ride personally but its not my gun.

 

[tenngun]

I do ship models
I would point you to an outfit on line called model expo
They have wood strips for the planking of models in .5-2mm thick.
Walnut and cherry standard

 

[Eric Krewson]

On one of early rifles I had a similar gap, soot showed it to be only at the top of the barrel inlet. With the barrel in place, I made wedge shaped shims of the same wood that were slightly oversized and tapped them in with some wood glue on them. With a tight but not forced fit they were invisible in the finished rifle.

I pulled the barrel and used a fine riffler file to blend the patch into the existing wood.