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.32 S&W Long N.P.
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Caliber Specifications:
Caliber: | .32 S&W Long N.P. |
Standard / Datasheet: | C.I.P. |
Bullet Diameter: | 0.312" | 7.92mm |
Primer Size: | Small Pistol (SP) |
Max. Case Length: | 0.915" | 23.25mm |
Max. Cartridge Length / OAL: | 1.280" | 32.51mm |
Max. Standardized Pressure: | 14504 psi | 1000 bar |
Case Capacity: | 14.8 Grains of Water | 0.96 cm3 |
CID: | CID_417 |
Last updated: | 2/20/2025 |
- The .32 S&W Long N.P. (New Police) is a centerfire revolver cartridge that is based on the .32 S&W Long cartridge. It was developed in the early 1900s as a replacement for the .32 Long Colt cartridge, which was then in use by many police departments.
The .32 S&W Long N.P. cartridge typically fires a 98- to 100-grain bullet at a muzzle velocity of around 700 to 800 feet per second. It was designed as a low-recoil cartridge suitable for use in small, lightweight revolvers, and was intended primarily for law enforcement use.
The .32 S&W Long N.P. cartridge was eventually largely replaced by more powerful cartridges such as the .38 Special, but it remains in use by some law enforcement agencies and is also popular among recreational shooters and revolver enthusiasts. It is a relatively low-power cartridge that is suitable for target shooting and small game hunting, but is not generally recommended for self-defense purposes. Weight vs. Velocity - Suitable Bullets for this Caliber
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Barrel Length Variation vs. Velocity - by Bullet Weight
.32 S&W Long N.P. load data available with the following bullets:
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Filter by Bullet Weight (Grains)
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