Someone asked me today if he could shoot a set of Briley tubes that extended beyond the end of his barrels? At first I started to so no way but then had to stop and admit that I did not know and that he should call the maker. Of course I expect they would say no as a precaution against any possible problems down the road. But what is the right answer?
He bought a set of used tubes that are 30" and wishes to use them in a 28" gun. As luck would have it they fit into the barrels. Beyond the chamber area the barrels have very little surface contact with the tubes and can not lend much in the way of support or strength to the tubes. I even remember a Remington 3200 or K-32 that some smuck had cut a series of scollops out of the sides of the barrels to make them lighter. Then he shot the gun with old Skeetmaster or Parabaugh tubes. It must have worked but looked as odd as heck.