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tahunua001 · April 2, 2013, 02:54 PM

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.

April 2, 2013, 02:54 PM	#21
tahunua001 Senior Member Join Date: July 21, 2011 Location: Idaho Posts: 7,839	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. __________________ ignore my complete lack of capitalization. I still have no problem correcting your grammar. I never said half the stuff people said I did-Albert Einstein You can't believe everything you read on the internet-Benjamin Franklin