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The Ultimate Reloading Manual
Wolfe Publishing Group
  • reloading manual
  • alliant reloading data
  • reloading brass
  • shotshell reloading
  • bullet reloading
The Ultimate Reloading Manual

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.375 A-Square

.375 A-Square
Warning! Notes: groove diameter: .375"; bore diameter: .367"; twist: 10" RH; barrel length: 26"; cartridge case: A-Square; primers: CCI-250; trim to length: 2.842"; powder compression: yes, use long drop tube; crimp: roll crimp .008" on A-Square bullets; other: no crimp on Sierra Spitzer Boat Tail bullets; bullet diameter: .375"; pressure measured by: Piezo Transducer (ANY SHOT YOU WANT - A-Square)
Be Alert: Publisher cannot be responsible for errors in published load data.
Wt. Bullet Powder Manufacturer Powder Charge Velocity (FPS)
250 Sierra Spitzer Boat Tail Hodgdon H-4831 Subscribe 3074
Remarks: 55,100 psi
250 Sierra Spitzer Boat Tail Hodgdon H-4831 Subscribe 3186
Remarks: 61,800 psi
250 Sierra Spitzer Boat Tail IMR IMR-4831 Subscribe 3055
Remarks: 54,100 psi
250 Sierra Spitzer Boat Tail IMR IMR-4831 Subscribe 3147
Remarks: 59,000 psi
250 Sierra Spitzer Boat Tail IMR IMR-4831 Subscribe 3184
Remarks: 62,600 psi
250 Sierra Spitzer Boat Tail IMR IMR-4831 Subscribe 3222
Remarks: 65,100 psi; this load exceeds allowable maximum average pressure
250 Sierra Spitzer Boat Tail Alliant RL-22 Subscribe 3115
Remarks: 57,600 psi
250 Sierra Spitzer Boat Tail Alliant RL-22 Subscribe 3217
Remarks: 61,200 psi
300 Monolithic Solid Hodgdon H-4831 Subscribe 2832
Remarks: 57,300 psi
300 Monolithic Solid Hodgdon H-4831 Subscribe 2974
Remarks: 63,500 psi
300 Monolithic Solid IMR IMR-4831 Subscribe 2837
Remarks: 58,000 psi
300 Monolithic Solid IMR IMR-4831 Subscribe 2966
Remarks: 67,600 psi; this load exceeds allowable maximum average pressure
300 Monolithic Solid Alliant RL-22 Subscribe 2839
Remarks: 54,300 psi
300 Monolithic Solid Alliant RL-22 Subscribe 2988
Remarks: 63,900 psi; this load exceeds allowable maximum average pressure