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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 easily be excessive in others. All loads should be reduced by 10%,  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: .45-70 Thompson Center Contender

  Piston: T/C Contender   Max COL: 2.550″
  Barrel: 14″   Reloading Dies: RCBS
  Max case length: 2.105″   Group distance: 50 yards
 Note: Hawk bullet used on this page have .025″ thick jackets. 

Bullet Type Bullet
Weight
Bullet
Diameter
C.O.L. Net Water
Capacity
Powder
Type
Charge Primer
Type
Muzzle
Velocity
Muzzle
Energy
Group
Size
Remington JHP 300 .458″ 2.550″ 63.6 Reloder 7 48.2 CCI 200 1715 1960 1.5
Remington JHP 300 .458″ 2.550″ 63.6 IMR 4198 44.7 CCI 200 1705 1937 1.5
Hornady RN 350 .458″ 2.550″ 58.6 Reloder 7 44.0 CCI 200 1580 1941 2.1
Hornady RN 350 .458″ 2.550″ 58.6 IMR 4064 51.7 CCI 200 1550 1868 1.8
Hornady RN 350 .458″ 2.550″ 58.6 IMR 3031 50.7 CCI 200 1615 2028 1.0
Hornady RN 350 .458″ 2.550″ 58.6 IMR 4198 41.0 CCI 200 1575 1928 1.7
Hawk FP 350 .458″ 2.550″ 60.6 Reloder 7 44.5 CCI 200 1585 1953 1.2
Hawk FP 350 .458″ 2.550″ 60.6 IMR 4064 52.4 CCI 200 1560 1892 2.3
Hawk FP 350 .458″ 2.550″ 60.6 IMR 3031 52.2 CCI 200 1650 2116 1.5
Hawk FP 350 .458″ 2.550″ 60.6 IMR 4198 41.5 CCI 200 1580 1941 1.7
Speer Flat Nose 400 .458″ 2.550″ 57.1 Reloder 7 41.0 CCI 200 1475 1933 0.7
Speer Flat Nose 400 .458″ 2.550″ 57.1 IMR 4064 48.6 CCI 200 1455 1881 1.2
Speer Flat Nose 400 .458″ 2.550″ 57.1 IMR 3031 47.6 CCI 200 1510 2026 1.0
Hawk FN 400 .458″ 2.550″ 56.7 Reloder 7 40.8 CCI 200 1470 1920 1.8
Hawk FN 400 .458″ 2.550″ 56.7 IMR 4064 48.0 CCI 200 1440 1842 2.0
Hawk FN 400 .458″ 2.550″ 56.7 IMR 3031 47.0 CCI 200 1505 2012 1.1
Hawk FN 400 .458″ 2.550″ 56.7 Win 748 49.7 CCI 250 1480 1946 1.3
Remington FN 405 .458″ 2.550″ 55.8 Reloder 7 40.2 CCI 200 1460 1917 1.9
Remington FN 405 .458″ 2.550″ 55.8 IMR 4064 47.5 CCI 200 1435 1852 2.0
Remington FN 405 .458″ 2.550″ 55.8 IMR 3031 46.5 CCI 200 1500 2024 1.1
Remington FN 405 .458″ 2.550″ 55.8 Win 748 48.9 CCI 250 1470 1944 1.6