What Caused This?

[Singer B]

That was brand new issue...

Works every time! I skipped that part of the video and went right to the shooting.

---------- Post added at 08:53 PM ---------- Previous post was at 08:50 PM ----------

If polishing doesn't work, you could install a sub caliber insert and have an easy shooting rifle.

Do you know of a company or shop that does that? I'm pretty sure my local gunsmith won't do that. Since the numbers on the barrel and receiver match, this would be great option to keep them together.

[browningautorifle]

Do you know of a company or shop that does that?

What would the bore diameter be? What pistol cartridge, 7.65? The bore diameter is 7.94 mm (0.313 in)? Rimmed would make it easy, then just sleeve the chamber. It might still grab a case rim with a rimless though. 32/20 Winchester would work I think.

[Aragorn243]

I have a couple of inserts but haven't seen them for a while. One is for a 303 British, I'm not sure what the other is or where it's at. They would work great as they are basically a steel cartridge shaped like the original round minus the bullet. The pistol round being straight wall fits right inside. The insert is the chamber and the beginning of the barrel in a manner of speaking. It makes them a single shot but better than nothing. Now that you've reminded me I have it, I can shoot that reset Ross rifle I have using it without worrying about it blowing up. Just have to find it.

[BVZ24]

I have one that's 30-06 to 30 carbine. Turns the rifle into a single shot and extracts the whole insert. It seems to work fairly well, even accuracy wise. After a lot of shooting it eventually gets too hot to hold. I pounded a nail all the way through a small 2x4 to aid in extracting the 30 carbine brass from the insert.

[mmppres]

Those marks look like a tap was used to take out the damaged shell. The fix might be rent a reamer an try that. You can also put some valve grinding compound on a case attached to a rod an slowly polish the chamber. This can be done by you very carefully. You want to just remove the sharp edges. This should still have marks in chamber but still keep original barrel