“Sorry, annything over 50 Browning is under the NFA of 1934”
That’s just a technicality. I’m thinking wildcat..necked down...we’ll call it the “5Aught-2Aught Varmit Killer”
That’s just a technicality. I’m thinking wildcat..necked down...we’ll call it the “5Aught-2Aught Varmit Killer”
There's a variant of the 20mmx138b Lahti round necked to .50 caliber that's a very interesting little round. Velocities, as you might expect, are high; barrel life is not. But happily, the chamber end of a .50 M2 Browning HB has a VERY thick and stout base, with room for the larger cartridge case, and barrel changeout is as easy as changing barrels on an M2.
We began the project around 1998, and it's just now coming into the light of day. But we're getting there....