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264 Win Mag Handload Data

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.

264 Winchester Magnum – MAP 64KPSI
Firearm Remington Model 700 Sendero
Barrel Length 26″
Max Case Length 2.500″ +0.000″/-0.020″
Min – Max COL 3.160″ – 3.340″
Primer CCI 250
Bullet Diameter 0.265″ +0.000″/-0.0030″
Reloading Dies Lee Precision

Bullet Type Bullet
Weight

Grains
Net H2O
Grains
Capacity
COL” Powder Type Powder
Charge

Grains
Muzzle
Velocity

fps
Muzzle
Energy

ft/lbs
Sierra Varminter HP 1710
100 78.1 3.150 MagPro 75.5 3704 3047
Sierra Varminter HP 1710 100 78.1 3.150 Re 25
74.0 3681 3009
Sierra Varminter HP 1710 100 78.1 3.150 IMR7828SSC 71.0 3660 2975
Sierra Pro Hunter 1720
120 78.7 3.340 MagPro 71.5 3390 3062
Sierra Pro Hunter 1720 120 78.7 3.340 Re 25
72.0 3444 3160
Sierra Pro Hunter 1720 120 78.7 3.340 H1000 73.5 3412 3103
Nosler Partition 16320
125 77.3 3.340 Re 25
70.0 3359 3131
Nosler Partition 16320 125 77.3 3.340 H1000 71.5 3328 3075
Nosler Partition 16320 125 77.3 3.340 RS Magnum
73.0 3376 3164
Privi SPBT
139 77.0 3.340 Re 25
68.0 3200 3161
Privi SPBT 139 77.0 3.340 H1000 70.0 3244 3248
Privi SPBT 139 77.0 3.340 RS Magnum
71.0 3226 3211
Hornady SST 26302
140
74.6 3.340 Re 25
66.5
3185
3153
Hornady SST 26302 140
74.6 3.340 H1000 67.5 3140
3065
Hornady SST 26302  140 74.6
3.340 RS Magnum
69.5 3213
3209
Nosler Partition 16321
140 75.8
3.340 Re 25
67.0 3180
3144
Nosler Partition 16321  140 75.8
3.340 Retumbo 71.5 3216 3215
Nosler Partition 16321  140 75.8 3.340 N570 72.5 3246 3276
Woodleigh PP 80A
160
74.5 3.340 Retumbo 69.5
3047 3298
Woodleigh PP 80A 160
74.5 3.340 H870 72.6
3054
3313
Woodleigh PP 80A 160
74.5
3.340 N570
70.0  3095 3403