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17 Hornet
204 Ruger
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22-250 Remington
220 Swift
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243 Winchester
6mm Remington
240 Weatherby
25-20 WCF
257 Roberts
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257 WM
6.5 Creedmoor
6.5x55mm Swede
260 Remington
6.5-284 Norma
264 Winchester Mag
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303 British
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338-378 WM
348 Winchester
358-378 RG
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375 Ruger
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450/400 3" NE
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416 Ruger
416 Rigby
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45-70 Government
45-70 Cast
450 Marlin
450 Rigby
460 Weatherby
500 S&W
500 Jeffrey

 
Warning: Bullet selections are specific, and loads are not valid with substitutions of different bullets of the same weight. Variations in bullet length will alter net case capacity,  pressure and velocity. Primer selection is specific and primer types are not interchangeable. These are maximum loads in my firearms and may easily be excessive in others. All loads should be reduced by 5%,  and developed following safe handloading practices as represented in established reloading manuals produced by component manufacturers. Presentation of these loads does not constitute a solicitation for their use, nor a recommendation.
 

Cartridge: 41 Remington Magnum

  Firearm: Ruger Blackhawk   Max COL: 1.590" except as noted
  Bullet Diameter: 0.410"   Primer: CCI 350
  Barrel: 4 5/8"   Reloading Dies: Lee Precision
  Max case length: 1.290"   Groups: 25 yards 3 Shot

 Note: 265 Grain near Blackhawk cylinder length maximum

COL and Capacity   Load Data & Performance
Bullet Type Bullet
Weight
C.O.L.
Inches
Case
Grains
Water
  Powder Charge
Grains
Muzzle
Velocity
FPS
Muzzle
Energy Ft/Lbs
25 Yard
Group
Inches
Hunters Supply FP 200 1.545 22.9   Power Pistol 9.0 1016 459 1.8
Hunters Supply FP 200 1.545 22.9   Power Pistol 10.0 1224 666 2.7
Hunters Supply FP 200 1.545 22.9   2400 17.0 1261 707 2.8
Hunters Supply FP 200 1.545 22.9   2400 19.5 1461 948 2.2
Hunters Supply FP 200 1.545 22.9   H110 23.0 1375 840 2.7
Hunters Supply FP 200 1.545 22.9   RS Enforcer 21.0 1471 961 3.1
Speer DCGD 210 1.575 20.5   AA9 17.0 1271 753 1.9
Speer DCGD 210 1.575 20.5   Power Pistol 12.0 1266 747 2.2
Speer DCGD 210 1.575 20.5   2400 18.0 1347 846 2.2
Speer DCGD 210 1.575 20.5   RS Enforcer 19.5 1366 870 2.5
Nosler HP 210 1.590 22.5   *Blue Dot 14.5 1249 728 1.7
Nosler HP 210 1.590 22.5   2400 19.0 1424 946 2.2
Nosler HP 210 1.590 22.5   H110 23.0 1389 899 2.5
Nosler HP 210 1.590 22.5   RS Enforcer 20.5 1437 962 2.5
Cast Performance WFNGC 250 1.610 20.5   *Blue Dot 13.0 1135 715 2.4
Cast Performance WFNGC 250 1.610 20.5   2400 17.0 1290 924 2.1
Cast Performance WFNGC 250 1.610 20.5   Lil' Gun 20.0 1281 911 2.6
Cast Performance WFNGC 250 1.610 20.5   RS Enforcer 18.5 1314 958 2.7
True Shot WNFPGC 265 1.705 23.7   2400 18.0 1261 936 3.2
True Shot WNFPGC 265 1.705 23.7   H110 23.0 1316 1019 2.3
True Shot WNFPGC 265 1.705 23.7   Lil' Gun 22.0 1314 1015 2.5
True Shot WNFPGC 265 1.705 23.7   W296 23.0 1338 1053 2.7

 Alliant Powder, the makers of Blue Dot, while listing Blue Dot for the .41 Remington Magnum for many years, has
withdrawn the powder from use with this cartridge. No reason given although there is a good deal of speculation
and many accounts of interactions with Alliant's lab without substantiation. Many years ago, pressure related
problems arose when shotgun powder came into popular use with magnum revolver cartridges as the
characteristics of the powder had been mapped up to maximum shotgun pressures and well under even  20,000
PSI. When tested to a higher pressure standard, they tended to spike and become erratic at magnum handgun
pressures.

Alliant does continue to list Blue Dot for use with the 40 S&W, 10mm Auto, 44 Special, .44 Magnum, etc. and
Alliant previously published load data mimics the still published Blue Dot data from Hornady, Sierra, Speer, and
Lee current reloading manuals, most published after Alliant's withdrawal of recommendation. The loads on this
page were selected from a different point in our handload development than originally listed  to underscore the
need to careful handling of these combination, however, as is the case with all major component suppliers that
provide load data, we see no reason to delist the powder type. I am not challenging Alliant's decision or advisory,
but it would be helpful if they were more forthcoming with information.

 
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