Typically that is because the recoil spring and its associated friction pieces and rings are gunked up and/or not assembled properly.
Also,if it is an early model (pre WW2,with the safety in front of the trigger guard), it could be chambered for 2 & 9/16 inch shells.This will throw the timing off on the shell latch and lifter.The ejection port is also too small for 2 & 3/4 fired shells.
If it is a Remington (aka "American Browning" ),there is a fiber washer at the back of the receiver that sometimes falls apart and jams the gun.This washer wasn't in Brownings' original design,and wasn't used in the Savage guns built under license either.
what shells can be used in a browning 16 guage autoloader
You have a problem that needs the attention of a gunsmith. Browning's web site can point you in the right direction.
Browning did not make ammunition. They contracted another company to make it for them.
yes
It will shoot any type it is chambered for.
First make sure that your shotgun can cycle 2 3/4 inch shells. To do this, read the barrel, if it say 2 9/16 shells then that is your problem. Early 16ga. Browning's were made to cycle 2 9/16 inch shells. Next, check your ring setup inside of your stock, it may not be set properly.
Yes, if so marked
You need the services of a gunsmith
You need the services of a gunsmith
Varies according to caliber.
Give it a thorough cleaning.
You need to see a gunsmith.