.505 Gibbs

The .505 Gibbs Rimless Magnum was developed as a proprietary cartridge for use in the Mauser type bolt action rifles by George Gibbs around 1910.
BULLET
WEIGHT
IN
GRAINS
BARREL
LENGTH
IN
INCHES
PRESSURE
at 15°C in
tons per
sq. in.
MUZZLE
50 YARDS
100 YARDS
VELOCITY
Feet per
Second
ENERGY
Foot/lbs
VELOCITY
Feet per
Second
ENERGY
Foot/lbs
VELOCITY
Feet per
Second
ENERGY
Foot/lbs
525g S/SN
28"
16
2300
6180
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