45 Colt – +P

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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.

45 Colt +P 28.0 KPSI – 32.0 KPSI
Firearm Ruger Blackhawk
Barrel Length 5.5″
Max Case Length 1.285″ +0.000″/-0.020″
Min – Max COL 1.515″ – 1.600″
Primer CCI 350 – Large Pistol Magnum
Bullet Diameter 0.4560″ +0.000″/-0.0060″
Reloading Dies RCBS
Bullet Type Bullet
Weight

Grains
Net H2O
Grains
Capacity
COL” Powder Type Powder
Charge

Grains
Muzzle
Velocity

fps
Muzzle
Energy

ft/lbs
Speer JHP 225 30.6 1.590 Alliant Blue Dot 20.5 1401 981
Speer JHP 225 30.6 1.590 Hodgdon H110 29.5 1457 1061
Speer JHP 225 30.6 1.590 Win 296 30.0 1483 1099
Sierra JHP 240 28.0 1.565 AA No.9 22.5 1401 1046
Sierra JHP 240 28.0 1.565 Hodgdon H110 28.5 1416 1069
Sierra JHP 240 28.0 1.565 Hodgdon Lil’ Gun 28.0 1450 1121
Hornady HP/XP 250 27.3 1.595 AA No.9 21.0 1340 997
Hornady HP/XP 250 27.3 1.595 Hodgdon H110 27.0 1374 1048
Hornady HP/XP 250 27.3 1.595 Win 296 27.0 1388 1070
TrueShot Cast 255 27.0 1.595 AA No.9 20.5 1311 973
TrueShot Cast 255 27.0 1.595 Hodgdon H110 27.0 1351 1034
TrueShot Cast 255 27.0 1.595 Win 296 27.0 1398 1107
Speer JHP
260
27.0 1.590
Alliant 2400
20.0
1258
914
Speer JHP 260 27.0 1.590 Hodgdon H110
26.5
1331
1023
Speer JHP 260 27.0 1.590 Win 296
27.0
1377
1095
TrueShot Cast 300 24.7 *1.645 H110 23.0 1232 1011
TrueShot Cast 300 24.7 *1.645 Ramshot Enforcer 20.5 1214 982
TrueShot Cast 300 24.7 *1.645 Win 296 23.0 1196 953
*Exceeds SAAMI COL of 1.610″. The Blackhawk’s cylinder body is 1.710″,
net of rear indexer and front bushing.  COL minus rim thickness of 0.060″ puts only
1.585″ in the cylinder and recovers 5 grains of case capacity.

 

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