the large magazine cap screw has to be unscrewed, after which the barrel simply rotates and slides off the front of the shotgun.
Yes, you can remove the barrel of a model 66 Shotgun!
That is a Stevens double. Pull straight down on the forend to separate it from the barrel set. Then open the barrels and remove them down and forward. Far as you need to go.
with a hacksaw
pull forearm off. open barrel and remove. drift 2 trigger assembly pins out. pull trigger ass. down and out. now drift the barrel catch pin and the lever and catch can be removed.
That shotgun was made for Sears by Savage/Stevens and is basically the Stevens 59A bolt-action. Remove the takedown screw from the bottom of the stock and separate the metal from the wood. Remove the bolt stop screw from the left side of the receiver and remove the bolt rearward. We do not recommend any further disassembly.
Who made it? Is it a shotgun, rifle or handgun?
To disassemble a Stevens Model 59B shotgun, first ensure it is unloaded. Then, remove the forend by unscrewing the forend nut. Next, push out the trigger plate pin and remove the trigger plate assembly. Finally, push out the hammer pin and remove the hammer assembly to fully disassemble the shotgun for cleaning or maintenance. Remember to follow all safety precautions and consult the manufacturer's manual for detailed instructions.
Send it to the factory or a trained factory armorer
with a torch
If it is a double, remove barrel and you will see it along with serial #.
you cannot remove it. it is all in one with the receiver frame