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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: .270 Winchester

  Rifle: Winchester M70   Max COL: 3.340″
  Barrel: 24″   Reloading Dies: RCBS
  Max case length: 2.540″   Group distance: 100 yards
 Note: c=compressed load

Bullet Type Bullet
Weight
Bullet
Diameter
C.O.L. Net Water
Capacity
Powder
Type
Charge Primer
Type
Muzzle
Velocity
Muzzle
Energy
Group
Size
Barnes XLC XBT 130 .277″ 3.340″ 60.8 Reloder 19 59.0 CCI 200 3150 2865 1.1
Barnes XLC XBT 130 .277″ 3.340″ 60.8 Reloder 22 61.5 CCI 200 3190 2938 0.4
Barnes XLC XBT 130 .277″ 3.340″ 60.8 RS Magnum 65.0 CCI 200 3180 2920 1.0
Barnes XLC XBT 130 .277″ 3.340″ 60.8 IMR 4831 59.0 CCI 200 3140 2847 1.2
Barnes XLC XBT 130 .277″ 3.340″ 60.8 Win 760 55.0 CCI 200 3100 2775 1.8
Hornady SP Interlock 130 .277″ 3.210″ 61.2 Reloder 19 59.0 CCI 200 3160 2883 1.1
Hornady SP Interlock 130 .277″ 3.210″ 61.2 Reloder 22 62.0 CCI 200 3220 2994 0.6
Hornady SP Interlock 130 .277″ 3.210″ 61.2 IMR 4350 56.0 CCI 200 3130 2829 1.6
Hornady SP Interlock 130 .277″ 3.210″ 61.2 IMR 4831 59.0 CCI 200 3120 2811 1.0
Sierra SBT 140 .277″ 3.300″ 60.6 Reloder 19 57.0 CCI 200 3030 2855 0.7
Sierra SBT 140 .277″ 3.300″ 60.6 Reloder 22 60.0 CCI 200 3090 2969 0.5
Sierra SBT 140 .277″ 3.300″ 60.6 RS Magnum 63.0 CCI 200 3050 2893 0.8
Sierra SBT 140 .277″ 3.300″ 60.6 IMR 4831 58.0 CCI 200 3040 2874 0.8
Sierra SBT 140 .277″ 3.300″ 60.6 Win WXR 60.0 CCI 200 3010 2817 1.5
Nosler Partition 150 .277″ 3.320″ 60.7 Reloder 19 56.5 CCI 200 2960 2919 1.3
Nosler Partition 150 .277″ 3.320″ 60.7 Reloder 22 59.0 CCI 200 3000 2998 1.0
Nosler Partition 150 .277″ 3.320″ 60.7 RS Magnum 62.0 CCI 200 2920 2841 0.9
Nosler Partition 150 .277″ 3.320″ 60.7 Win 760 50.0 CCI 200 2900 2802 1.3
Nosler Partition 150 .277″ 3.320″ 60.7 IMR 7828 59.0 CCI 200 2990 2978 1.1