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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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.577-.450 Load Data

.577-.450 Load Data
Warning! Notes: Handloader Issue 76
Be Alert: Publisher cannot be responsible for errors in published load data.
Wt. Bullet Powder Manufacturer Powder Charge Velocity (FPS)
400 Lee IMR IMR-4759 Subscribe 1,172
Remarks: Gibbs Long Rifle; mild load
400 Lee Alliant Blue Dot Subscribe 1,422
Remarks: Gibbs Long Rifle; Blue Dot good with lighter bullets
400 Lee Alliant Unique Subscribe 1,124
Remarks: Gibbs Long Rifle; light recoil
400 Lee Alliant Green Dot Subscribe 1,094
Remarks: Gibbs Long Rifle; nice-shooting
400 Lee Alliant Red Dot Subscribe 1,136
Remarks: Gibbs Long Rifle; nice-shooting
400 Lee Alliant Herco Subscribe 1,272
Remarks: Gibbs Long Rifle; efficient load
400 Lee Nobel Nobel 100 Subscribe 1,390
Remarks: Gibbs Long Rifle; some powder left in bore but ignition OK
400 Lee IMR IMR-3031 Subscribe 1,424
Remarks: Gibbs Long Rifle; powder left in bore - wadding essential
475 457121 Alliant Blue Dot Subscribe 1,075
Remarks: Gibbs Long Rifle; nice load; accurate
475 457121 Alliant Blue Dot Subscribe 1,220
Remarks: Gibbs Long Rifle; very uniform, with wadding
475 457121 Alliant Blue Dot Subscribe 1,374
Remarks: Gibbs Long Rifle; powerful, but OK pressure and very uniform velocity
475 457121 IMR IMR-4759 Subscribe 990
Remarks: Gibbs Long Rifle; very accurate, mild
475 457121 IMR IMR-4759 Subscribe 1,109
Remarks: Gibbs Long Rifle; very accurate, mild
475 457121 Alliant 2400 Subscribe 1,132
Remarks: Gibbs Long Rifle; wadding a great help
475 457121 IMR IMR-4756 Subscribe 1,082
Remarks: Gibbs Long Rifle; very accurate load
475 457121 IMR IMR-7625 Subscribe 1,069
Remarks: Gibbs Long Rifle; 2-inch 100-yd group from benchrest
475 457121 Alliant Herco Subscribe 1,213
Remarks: Gibbs Long Rifle; good ignition
475 457121 Nobel Nobel 100 Subscribe 1,378
Remarks: Gibbs Long Rifle; only 23 fps velocity spread
475 457121 Nobel Nobel 101 Subscribe 1,342
Remarks: Gibbs Long Rifle; only 28 fps velocity spread
475 457121 Alliant Blue Dot Subscribe 1,145
Remarks: Army & Navy Carbine; good load
475 457121 IMR IMR-4227 Subscribe 1,144
Remarks: Army & Navy Carbine; wadding a must
475 457121 Alliant Blue Dot Subscribe 1,160
Remarks: 1877 Enfield Carbine; wadding a must
500 457125 IMR IMR-3031 Subscribe 1,582
Remarks: Gibbs Long Rifle; plenty recoil; some powder kernels in bore
500 457125 IMR IMR-4064 Subscribe 1,529
Remarks: Gibbs Long Rifle; unreliable ignition; wide velocity spreads; low reading was 1,270 fps
500 457125 Alliant RL-7 Subscribe 1,416
Remarks: Gibbs Long Rifle; unreliable ignition
500 457125 IMR IMR-4759 Subscribe 1,170
Remarks: Gibbs Long Rifle; good shooting load
500 457125 Nobel Nobel 101 Subscribe 1,540
Remarks: Gibbs Long Rifle; plenty recoil but extraction OK