grey_pilgrim
New member
So I was thinking about double rifles, and about how one difficulty in making them was in getting the two barrels to shoot to point of aim. Then I wondered if one could take a block of steel, machine two bores into the steel, attach it to an action, and voila - no regulation of barrels needed.
After a quick google, I'm not the first one to have this idea (though my quick skim suggests that the patent is more about how to make the bores have a convergence point): https://patents.google.com/patent/US7707761 . And now you can buy one of their shotguns for ~38k for the 'standard price'.
But my question is:
Why don't we see more double rifles machined out of an elongated block of steel?
One reason I can think of is that once you've machined a double rifle barrel out of one solid block - that's it and you can't make any changes. If there's a small error in the machining, you've basically just made a hunk of scrap with two barrels that shoot to very different places.
If you machine two barrels and regulate them after the fact, you can regulate them, shoot to test, and then change as needed. But I have no idea as to the tolerances required for double rifle barrels and if a CNC/Lathe could be precise enough to get the barrels drilled in the same place.
After a quick google, I'm not the first one to have this idea (though my quick skim suggests that the patent is more about how to make the bores have a convergence point): https://patents.google.com/patent/US7707761 . And now you can buy one of their shotguns for ~38k for the 'standard price'.
But my question is:
Why don't we see more double rifles machined out of an elongated block of steel?
One reason I can think of is that once you've machined a double rifle barrel out of one solid block - that's it and you can't make any changes. If there's a small error in the machining, you've basically just made a hunk of scrap with two barrels that shoot to very different places.
If you machine two barrels and regulate them after the fact, you can regulate them, shoot to test, and then change as needed. But I have no idea as to the tolerances required for double rifle barrels and if a CNC/Lathe could be precise enough to get the barrels drilled in the same place.