45-90 Winchester

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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 be excessive in others. All loads should be reduced by 5% as a starting point for development where cartridges have greater than 40 grains in capacity and 10% for cartridges with less than 40 grain capacity following safe handloading practices as represented in established mainstream reloading manuals. Presentation of these loads does not constitute a solicitation for their use, nor a recommendation.

Cartridge
45-90 Winchester
Firearm Winchester Model 1886
Barrel Length 24″
Max Case Length 2.400″ +0.0″/-0.020″
Max COL M1886
2.850″
Primer Remington 9 1/2 – Large Rifle
Bullet Diameter 0.458″ +0.0″/-0.003″
Reloading Dies Lyman Precision
Bullet Type  Bullet Weight
Grains
Net H2O
Grains
Capacity
COL” Powder Type Powder Charge
Grains
Muzzle Velocity
fps
Muzzle Energy
ft/lbs
Sierra Pro-Hunter JHP 300 73.3 2.835 Re7 59.0 2307 3546
Sierra Pro-Hunter JHP 300 73.3 2.835 Re10 62.0 2320 3586
Sierra Pro-Hunter JHP 300 73.3 2.835 IMR4198 57.0 2376 3762
Sierra Pro-Hunter JHP 300 73.3 2.835 Trail Boss 22.0 1350 1214
Hawk Precision SPFN 350 69.7 2.850 Re7 55.0 2173 3674
Hawk Precision SPFN 350 69.7 2.850 Re10x 58.0 2175 3677
Hawk Precision SPFN 350 69.7 2.850 IMR4198 53.5 2157 3617
Hawk Precision SPFN 350 69.7 2.850 Trail Boss 22.0 1299 1312
Speer SPFN 400 66.3 2.850 Re7 53.0 2017 3614
Speer SPFN 400 66.3 2.850 Re10x 55.0 2045 3715
Speer SPFN 400 66.3 2.850 IMR4198 50.0 2008 3582
Speer SPFN 400 66.3 2.850 Trail Boss 21.0 1165 1206
Cast Performance
460 59.6 2.825 Re7 46.0 1811 3351
Cast Performance
460 59.6 2.825 Re10x 49.5 1861 3538
Cast Performance
460 59.6 2.825 IMR4198 45.0 1838 3451
Cast Performance
460 59.6 2.825 Trail Boss 18.0 1015 1053
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