.375 Whelen

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.375 Whelen
Type Rifle
Place of origin United States
Production history
Designer L.R. "Bob" Wallack
Designed 1951
Specifications
Parent case .30-06 Springfield
Ballistic performance
Bullet mass/type Velocity Energy
200 gr (13 g) SP 2,450 ft/s (750 m/s) 2,665 ft·lbf (3,613 J)
235 gr (15 g) SP 2,475 ft/s (754 m/s) 3,205 ft·lbf (4,345 J)
270 gr (17 g) SP 2,380 ft/s (730 m/s) 3,400 ft·lbf (4,600 J)
300 gr (19 g) SP 2,110 ft/s (640 m/s) 2,975 ft·lbf (4,034 J)

The .375 Whelen cartridge (A.K.A. 375-06) was developed in 1951 by L.R. "Bob" Wallack and named in honor of Colonel Townsend Whelen.[1] It is a .30-06 Springfield case necked up to .375.[1] While the .375 Whelen retains the .30-06's shoulder angle of 17° 30′, an improved version was introduced with a 40°  angle, providing more case capacity as well as better headspacing.[1] The .375 Whelen Improved is favored by most.

Reloading Data[edit]

Bullet (grs.) Powder / (grs.) MV
200 SP IMR4064 / 58.0 2450 2665
235 SP IMR4064 / 60.0 2475 3205
270 SP IMR4064 / 57.0 2380 3400
300 SP IMR4064 / 52.0 2110 2975

[1]

See also[edit]

References[edit]

  1. ^ a b c d "375 Whelen (375 Whelen Improved)." Welcome to The Reload Bench. The Reload Bench, 2005. Web. 18 June 2010. <http://www.reloadbench.com/cartridges/w375whel.html>.[self-published source]