.32-40 Ballard

The .32-40 Ballard, also known as .32-40 Winchester is an American rifle cartridge.

.32-40 Ballard
.32-40 cartridge between .223 Remington (left) and .270 Winchester (right)
TypeRifle
Place of originUnited States
Production history
Designed1884
Produced1884–present
Specifications
Case typeRimmed, straight
Bullet diameter.320 in (8.1 mm)
Land diameter.315 in (8.0 mm)
Neck diameter.338 in (8.6 mm)
Base diameter.424 in (10.8 mm)
Rim diameter.506 in (12.9 mm)
Rim thickness.063 in (1.6 mm)
Case length2.13 in (54 mm)
Overall length2.59 in (66 mm)
Rifling twist1 in 16 in (410 mm)
Primer typeLarge rifle
Maximum CUP30,000 CUP
Ballistic performance
Bullet mass/type Velocity Energy
165 gr (11 g) 1,440 ft/s (440 m/s) 760 ft⋅lbf (1,030 J)
165 gr (11 g) 1,430 ft/s (440 m/s) 755 ft⋅lbf (1,024 J)
155 gr (10 g) 1,460 ft/s (450 m/s) 786 ft⋅lbf (1,066 J)
165 gr (11 g) 1,740 ft/s (530 m/s) 1,109 ft⋅lbf (1,504 J)
Test barrel length: 20 inches (510 mm)
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