260 Remington – Short Barrel

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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 – 260 Remington
Firearm Ruger M77 MK II Intl
Barrel Length 18.50″
Min – Max Case Length 2.035″ +0.000″/-0.020″
Min – Max COL 2.530″ – 2.800″
Primer Remington 9 1/2
Bullet Diameter 0.2645″ +0.000″/-0.0030″
Reloading Dies Redding FL
Bullet Type  Bullet Weight
Grains
Net H2O
Grains
Capacity
COL” Powder Type Powder Charge
Grains
Muzzle Velocity
fps
Muzzle Energy
ft/lbs
Sierra Varminter 100 49.2 2.650 Reloder 15 44.0 2945 1926
Sierra Varminter 100 49.2 2.650 Reloder 16 47.0 2953 1937
Sierra Varminter 100 49.2 2.650 Win 748 43.5 2962 1949
Sierra Pro-Hunter 120 48.4 2.745 Reloder 16 45.0 2740 2001
Sierra Pro Hunter 120 48.4 2.745 H414 45.5 2929 2287
Sierra Pro Hunter 120 48.2 2.745 Win 760 45.5 2835 2142
Nosler Partition 125 47.2 2.755 Reloder 16 44.0 2709 2037
Nosler Partition 125 47.2 2.755 Hybrid 100V 44.0 2717 2049
Nosler Partition 125 47.2 2.755 H4350 44.5 2702 2027
Hornady SST 140 44.7 2.775 Reloder 16 41.5 2565 2046
Hornady SST 140 44.7 2.775 IMR7828SSC 47.0 2650 2184
Hornady SST 140 44.7 2.775 Norma MRP 47.0 2598 2099

 

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