The 348 is best left to wildcats like Harold Johnson's 450 Alaskan, the 50 Alaskan, and PO Ackley's 348 Ackley Improved. They are pretty much based on the 1886 and Model 71
Winchester lever action rifles. These Winchesters are fast-action lever guns that put repeat shots on game like lower 48 grizzlies or Alaskan brown bear.
These animals require fast repeat shots, in many cases.

Most efforts to wild cat the 348 out of its original rim for bolt action rifles have not met with much success, though the Siamese Mausers
have been wildcatted to 450 and 50 Alaskan.

The Alaskan consensus is that most of this ground has been well covered for bolt guns by the 338-06, the 35 Whelen, and 375 Whelen or even the 400 Whelen Improved.
The 35 Whelen Improved will also run circles around most cartridges for moose and bear, especially with today's bonded core bullets. Brass is easily formed
as is the 338-06. Right from 30-06 with a single pass.

Last edited by 450Fuller; 09/17/19.

"The credit belongs to the man who is actually in the arena-not the critic"-T. Roosevelt
There are no atheists in fox holes or in the open doors of a para's aircraft.....