Hi George,
The RWS loadind datas for the 19g Tug or UNI, today's name of the bullet, is not warm cause it complies to the CIP proof (43900psi).
This load can be used in any good shape 9,3x74R double, combination or single. Recoil can be stout because of lightness and stock shape of old rifles.
The pressure is held low because of the very old break open firearms from the biginning of 20th century. Note, that most of these old ones are surely used in your country than in Europe. Being, for the most part of them, retired from service here.
As modern firearms that shoot this old cartridge are proofed for the new 30R Blaser which use the same type of case to 60000psi (even more)it's easy for the skilled, conscious, intelligent handloader to push the 9,3x74R a bit, like some do with the 9,3x62.
Will never be a magnum but in a single shot can flatten a bit the bullet flight.
With Woodleigh and Norma 320/325grs bullet it's easy to get close to the old british standard 360n�2 around 2200fps in a double without going more to 52/53000psi. Enough for most big game, to and including buffalos.
So as said JB why bother with 375 Flanged and it's more expensive cases, dies and rifle. But if you're a loony....
Dom
