Remington Model 12 experts please help

[Rapidrob]

I have been given a 1935 Remington Model 12 pump-action .22 rifle. While there is no finish left on the rifles steel it is in very good mechanical shape with a perfect bore. The owner had this rifle since it was new. He said he tried to fire it in the 50's and it would jamb. It is doing that.
What happens is when you pump the action bar back, a new round is loaded onto the bar and it slips into the female grooves of the bolt. As the action starts to close the nose of the bullet ( .22 LR ) is raised too high as it it riding on the face of the bolt and it jambs just above the chamber mouth. If I pull back slightly, the nose will drop in line with the chambers mouth and load/fire when push forward again normally.I'm not sure just what is causing the bullet nose to go so high above the chamber. Is the bolt face worn out? Is the carrier staying up too long? If anyone knows how to fix this problem I'd be very thankful. The rifle looks to be a fun shoot. I'd like to get it back into working order.
Thank you.

 

[Z71]

Hard to tell!

I have had issues with my 12C's extractor getting gunked up and having similiar misfeeds. Basicaly was just dirt/crud trapped between the extractor and the bolt. The new cartridge refused to hit the chamber, I guess because the extractor had no tension on the cartridge rim.

The tolerances are fairly snug on these old rifles, and I've found mine to be problematic when it's really dirty. Not to mention that the Model 12 rifles are old, old guns! Anything could be worn out.

I would try cleaning the bolt and extractor. Maybe push the extractor away from the bolt and blowing the recess behind the extractor out with brake cleaner and compressed air.