HUBEL... can I pick your brain a bit for my 577 project ???
right now we are leaning towards a double rifle, using a strong 12 ga side by side shotgun & barrel liners in 577 by using 3 equispaced set screws in each shotgun barrel muzzle, the bore end of the liner could be adjusted within the shotgun tube, then the screws could be either trimmed to length, or a pourable epoxy could be added between the barrel & liner, after the barrels were properly regulated, & the screws removed... if the gaps were small enough the muzzle could be soldered as well ???
I have already gotten some 557 cases, & have dies ordered...
one thing my local builder is concerned with is finding a strong enough action ( I figure you are the guy to ask
) an exposed hammer would be a nice feature, but my buddy is concerned that the 577 even in black powder loads is almost double the pressure of a 12 ga, so finding a strong enough action would be important... finding one that was cheap enough to use, or commonly available is equally important... any suggestions ???