Last ditch Arisaka?

going off of what is in my sierra book, the general issue 54R load is a 148 grain bullet travelling roughly 2600 FPS.

conversely the 7.7 jap load was a 184 grain projectile travelling roughly 2400 FPS.

I can't find any 1 bullet style in those two exact weights but with a 150gr sierra pro hunter at 2600 FPS the muzzle energy is 2250FTLBS.

the same bullet in 180gr at 2400FPS is just over 2300FTLBS so even giving the 54R a handicap, 7.7 still comes out on top for energy.
 
The Japanese did not load the 7.7 to its full potential, probably because the increased recoil would have been hard on the small stature Japanese soldiers.

The 7.62 x 54R as loaded by the Russians, is considerably more powerful, though still not up to the .30-'06 or the even hotter 7.9 Mauser.

Jim
 
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