From Cartridges of the World 2nd ed
It was invented in 1881 by H&H. In the 1883 field trials using open sights 10 shots grouped 1 1/2" at 50 yards.
Original loading
300 (.295) Rook
1 1/8" OAL
Bullet 80grs (Lead)
Powder 4 1/2grs of CN (Cadet neonite)
MV 1100 ME 915 Vel@100 yards 215 Energy @ 100 yards 150 drop 16.5"
Recommended loadings from the above:
Bullet 90grs powder 4759 6grs MV 1150 ME 245 lyman #311245
Bullet 90grs powder Unique 5grs MV 1100 ME 218
Bullet 80grs Black 10,FL MV 1100 ME 215
He compares it the 32 Extra Long
Pete
