the 1928 is just an improved verson of the 1921 model. they made about 5 or6 different 1928 models or grades. the 1921 model was made from 1921 to 1928 with about 13000 guns made. they are worth about$350 in exc. to $150 poor grade. The Model 28 was called "an improved version of the Model 21", so the differences should not be dramatic.
model 158 12 gauge shotgun
Among other BPS shotguns, yes.
AFAIK, no.
TC is one
H&R and I believe Rossi have single shot rifles with interchangible barrels.
Yes they should be.
Rossi is coming close with a single shot rifle ( the wizard) with interchangable barrels. They boast 21 different combos and include shotguns. As far as a gun that can shoot everything from a 17 HMR to a 50 caliber bullet the answer is no.
No.
NO. Early shotguns have softer steel barrels, and are not rated for steel shot. It will damage the choke of the shotgun.
no . riverside was mainly produced after 1914, using fluid steel barrels.
No, the gun is either chambered for one gauge or the other.
Shotguns are described by gauge, not caliber. It should be marked on the barrels as to which is the correct ammuntion and gauge. Shotguns are described by gauge, not caliber. It should be marked on the barrels as to which is the correct ammuntion and gauge.