On the barrel of most guns produced, the proper caliber/gauge is stamped as well as size/ type. That being said I think the model 16 was a semi-auto .22 caliber, firing a .22 caliber long rifle round.
this ammo is one of a kind. it will only fit a remington 16 22 caliber autoloading rifle. the model 16 was the very first 22 cal. automatic remington produced. they made this special ammo. because all prior 22 ammo was blackpowder. the model 16 was gas opperated and black powder would plug and corrode the gas tubes. thus the 22 cal. autoloading. this ammo was made to fit this rifle and this rifle only. it was a 45 grain bullet that would average 900 fps. this round fool proofed the model 16.
.22 WRF or .22 Remington Special
There is a ammo clip for a J C Higgins shotgun model 58324 16 gauge. You can buy it as a replacement part.
12, 16, 20, 28 gauge, or .410 bore, depending on what it is chambered for.
A Remington model 31 16 gauge shotgun is worth between $200 and $600 depending on its condition. These shotguns were commonly used for sport and recreational shooting.
800
Browning did not make the Model 11, Remington did. If you have a Remington Model 11 in 16ga, value is between $150-$450.
In 1950 Remington introduced fifteen versions of the Model 870 shotgun, in 12, 16 and 20 gauges.
Model 58 is an automatic not a bolt action
100-325 USD
1 in 16"
300 or so