You need to cycle the action for every ejection.
If it's a 16 gauge shotgun, the shell length is 2 3/4 inches.
yes the butt stocks are the same the barrels are also the same the only difference ison the 58 you need to have two holes drilled into the barrel. the holes allow the pressure to eject the shells.
to eject the lighter loads , you have to take off the stock and barrel and then close the gas release ports by hand .There is arrow on the adjuster to show you which way to close itGood Luck ! Mine works great after i found the right setting.
12 gauge
Odds are it isn't a Remington at all, but rather an Ithaca Model 37. To my knowledge, it was the only bottom-eject pump shotgun ever made. As for value; any gun (or anything else for that matter) is worth whatever another is willing to pay for it.
Yes
Ammo, parts, dirty
Give it a thorough cleaning.
The weapon may not be a semi or an automatic one.
You need to have a gunsmith look at it.
You need to see a gunsmith.
I have a model 1100 Lt 20 ga. magnum and it will fire the 2&3/4 shells but will not cycle or eject them. Someone told me that the holes in the barrel to let the gas escape are different on the magnum. I bought another barrel for 2&3/4 shells and it cycles them fine with this barrel.