Glenn Slaven
AH enthusiast
Yep, nothing that a sturdy rubber mallet would not fix LOL
The best known real big boy of the 9.3 family is the 9.3x64 *. It achieves 3,000 fps with a 225 grain bullet and a little over 2,500 fps with 293 to 300 grain bullets. These velocities exceed the velocities from the 9.3x62 by 200 to 400 fps. This is not inconsequential. Actually this was the cause for some earlier issues when bullets designed for the x62 where fired in the x64 and failed to maintain structural integrity due to the additional velocity. The 9.3x64 is fully the ballistic equivalent of the .375 H&H Mag (many say it is better) with the huge advantage that it could be chambered in a standard length Mauser action without requiring magazine length alterations and the milling (hence weakening) of the action behind the lower lug.
The 9.3x74R operates at lower pressure (which was likely the purpose of its immensely longer case) to be reliable in break open single or double rifles, or the German's favorite drillings. Its performance are similar albeit a bit behind the .375 H&H Flanged, itself a tuned down .375 H&H Mag for the same reasons. In so many words, 9.3x74R, .375 H&H Flanged and 9.3x62 are ballistic triplets.
Actually, it may be interesting to mention that Russia recently adopted the 9.3x64 (.366 diameter) as its response to the US and NATO countries adopting the .338 Lapua as an anti personnel extended range and anti material sniper cartridge. That alone tells a lot about the merit of the 9.3x64 in term of payload potential and ballistics...
* there was also a 9.3x70 developed by DWM which is essentially a .404 Jeffery necked down to 9.3 but its actual diffusion has been very limited. I have never seen it, never shot it, and guess that it must be something comparable to the .375 RUM.
9.3x64!?!? I’m going to have to round out my collection of 9.3s now. Lol