I wonder if anyone has done much work with the 6.5 Jap? I know it is a fairly short case and would work in a lot of standard actions.
I think the main problem the Japs had with it was it did not work as well with tracers as a .31 caliber.
One of my college professors had a 6.5 Carcano. We took it out one day and he shot right through a pine stump. That was with surplus ammo.
The Tsarist Russians made a selective fire “assault rifle” around 1915 or so that used 6.5 Jap. I think it was called the “Avtomat.”
Oh its a powerful round in 160gr ball..... 240 rounds basic combat load would be heavier than ...... ;o)
The Russians did, in the days when they were considering a switch to a rimless cartridge for easier engineering of a soldier-proof [that's IVAN the soldier-proof!] semiauto rifle.
What they came up with was Federov's Avtomat, not as Ivan-proof as they'd hoped, so only around 3250-3500 were built. Neither were the various Tokarev semiauto designs of circa WWII overly reliable; many found use as sniper weapons. Dragonov's SVD is pretty decent, but the Russian troops' nickname for it is *the oar*- it's not especially handy, nor light. But it'll hit and kill longer than the max range of an RPG-7 [about 900 meters, for the PG-7] and the troops found that....helpful.