Unverified load 7780 in caliber .38-40 Winchester
LoadID 7780
Bullet Magma .403 cast
Bullet Weight 180 grs
Powder IMR-4759
Powder Weight 13.2 grs
Primer CCI-350 MAG
Brass Make Star-Line
Barrel Length 24 (inches)
C.O.L 1.588 (inches)
Velocity 995 fps
Group 100 yds 12 (inches)
Submitted By Float Pilot
Gun Info Original 1892 Winchester mader in 1892.
Comment SUPER DIRTY, all sorts of unburned powder falls out of case. Huge group. Seems like a bad idea for this cartridge.