I subscribe to a couple collector magazines, which feature fine quality British single and double barrel rifles and shotguns. An article I read some time back featured a 12 gauge rifle (not a slug gun, but an honest to goodness rifle, sights, case, pressure levels, and all) This particular gun was chambered for 12 gauge straight wall 2 1/2 inch brass cases, but was bored for 10 gauge projectiles. Rifled at one turn per 100 inches, groove depth was equal to chamber diameter. This rifle fired round ball, projectiles over 160 grains of black powder. This got me to wondering what a person could do with an SB2 frame and a barrel...but which barrel, what to start with, where to stop and say close enough, how wild and wierd can a person get with a handi rifle?
Would it be possible (no not practical) to take a 20 ga slug barrel and have it re-bored and re-rifled for 16 gauge, and rifled at around 1 turn in 100 inches. Is a 20 ga slug barrel even available for a handi? Then there is the question of pressures, and proof testing before putting my face very close to such a creation.
Any other dreamers out there have any thoughts to add??