The 9.3x62 was designed in 1905 as a smokeless powder cartridge it was never offered as a black powder round unlike the 9.3x72R. CZ barrels have a 1:14 twist, Ruger 1:10 and Schilen barrels are 1:12 all of which will stabilize bullets up to 325grs. CZ, Ruger, Sako, Zastava,Sauer, Blazer and others offer this chambering. I have a Husqvarna 640 made in 1947 with an FN action and 23.6" barrel. It does the job with less meat damage than a .300 mag.