Try different ammunition, verify the shotgun is put together properly.
Do you mean ejecting?
The model 16 22 is loaded from the butt of the rifle. Push on the rear of the lower knob at the base of the stock and slide the rod out. Loading shells into the cavity on the underside of the rifle and re-inserting the rod. You should also know that the Model 16 takes a special Remington .22 caliper shell that was only made by Remington and not manufactured today. The Model 16 was the only rifle to use this shell. The rifle is about guaranteed not to operate properly with modern .22 shells.
I have a Remington model 31 in 16ga and i shoot regular low brass shells in it and it does fine, it would depend on the type of game you are hunting. High brass shells are for more power and longer range.
Send me your email address for a scan of the manual.
Yes I own one but you must turn the spring around.
If it's a 16 gauge shotgun, the shell length is 2 3/4 inches.
No such model in the Remington line.
Well, it would help to know which gun your model 512 is, but for now I will assume it is a Remington SportsMaster 512. The bolt stop may be worn, broken or dirty. Take it to a gunsmith for examination and repair as needed. Parts wear out.
No such model number listed on Remington's web site.
Action size.
No such model number in the Remington line
it is 56 Remington rifle model