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.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