doublegunshop.com - home Forums General Discussion Double Rifles, Paradox Guns & Gauge Rifles @ doublegunshop.com Poor man's paradox

XS,
Interesting.When you say "indexing pin", do you mean the pin that fits into the indexing holes in an Atlas lath's bull gear ? Do you use a milling attachment to clamp the barrel, in place of the compound slide or is it rigged some way to the tool post? If you index on the bull gear, is there some reason not to cut 4 or even 3 grooves, or was it personal preference? Is there a handle on the threaded rod to pull it by hand, or do you pull it under power some way? It seems like we have pretty similar interests( I guess so, or we wouldn't be on the same forum).
Mike

Yes, the indexing pin on the bull gear. I suppose I could cut down on the work by only cutting four grooves. Used the tailstock screw to push the rod with cutter thru, since the rifling only is in the choke. Used a padded drill press vise bolted to the cross slide to hold the barrel, shimmed to center the bore.

XS,
Thanks,that is a good explanation of an inventive process.
Mike