Load Specifications
Load data in caliber 6.5 x 64 (Reb) with .264 | 130gr | Sierra Tipped GameKing bullet and 79 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Accurate High Country, Norma MRP and Vihtavuori N560.
Important Notice: DO NOT go below Minimum Charge or above Maximum Charge. Since we have no control over the equipment and components used, any responsibility and liability for the results achieved is rejected.
Only powders/loads that match the current filter criteria are displayed: max pressure of a load ≤ 90% of max. standardized pressure, fill rate ≥ 80% and propellant combustion ≥ 95%. Use the sliders above the tables to adjust these thresholds.
Charge: Powder weight in grains. Start with the minimum load and work up carefully.
FR (Fill Rate): Case fill as a percentage. Values above 100% mean compressed loads.
MaxP / %: Maximum chamber pressure in bar and as a percentage of the standardized maximum for this caliber.
V(0): Muzzle velocity in feet per second (fps) at the standardized barrel length.
z (Powder Burn): Estimated propellant combustion percentage at bullet exit.
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Max Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 96% | 53,403 psi | 86% | 2871 fps | 99.8% |
| Accurate 4350 | <<locked>> | 88% | 55,013 psi | 88% | 2910 fps | 100% |
| Accurate High Country | <<locked>> | 94% | 54,607 psi | 88% | 3012 fps | 98% |
| Accurate MAGPRO | <<locked>> | 96% | 55,463 psi | 89% | 3012 fps | 96.9% |
| ADI AR 2208 | <<locked>> | 82% | 53,461 psi | 86% | 2825 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 55,767 psi | 89% | 2959 fps | 98.8% |
| ADI AR 2213 | <<locked>> | 96% | 53,505 psi | 86% | 2953 fps | 97.4% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 39,523 psi | 63% | 2730 fps | 97.1% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 55,999 psi | 90% | 2956 fps | 98.8% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 55,999 psi | 90% | 2956 fps | 98.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 54,433 psi | 87% | 2848 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 55,782 psi | 89% | 2966 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 53,345 psi | 86% | 2930 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 55,274 psi | 89% | 2946 fps | 98.8% |
| Alliant Reloder-22 | <<locked>> | 96% | 53,113 psi | 85% | 2953 fps | 98.6% |
| Alliant Reloder-23 | <<locked>> | 98% | 53,969 psi | 87% | 2933 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 49,835 psi | 80% | 2930 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 94% | 54,041 psi | 87% | 3018 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 55,709 psi | 89% | 2992 fps | 98.8% |
| Bofors RP3 | <<locked>> | 82% | 55,376 psi | 89% | 2864 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 45,716 psi | 73% | 2848 fps | 96.4% |
| Bofors RP5 | <<locked>> | 96% | 53,113 psi | 85% | 2953 fps | 98.6% |
| Bofors RP7 | <<locked>> | 86% | 54,549 psi | 87% | 2858 fps | 99.2% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 49,269 psi | 79% | 2871 fps | 97.4% |
| Hodgdon H380 | <<locked>> | 82% | 55,434 psi | 89% | 2881 fps | 100% |
| Hodgdon H414 | <<locked>> | 86% | 53,171 psi | 85% | 2904 fps | 99.4% |
| Hodgdon H4350 | <<locked>> | 86% | 56,304 psi | 90% | 2920 fps | 99.1% |
| Hodgdon H4831 | <<locked>> | 94% | 53,679 psi | 86% | 2897 fps | 96.8% |
| Hodgdon H4831 SC | <<locked>> | 96% | 56,173 psi | 90% | 2940 fps | 97.3% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 56,173 psi | 90% | 2887 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 48,718 psi | 78% | 2972 fps | 98.6% |
| Hodgdon Superformance | <<locked>> | 86% | 53,359 psi | 86% | 2940 fps | 99.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,854 psi | 59% | 1814 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 56,260 psi | 90% | 2858 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 55,883 psi | 90% | 2897 fps | 99.4% |
| IMR 4451 Enduron | <<locked>> | 86% | 55,941 psi | 90% | 2881 fps | 99.6% |
| IMR 4831 | <<locked>> | 90% | 55,303 psi | 89% | 2900 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 54,940 psi | 88% | 2884 fps | 97.2% |
| IMR 7828 SSC | <<locked>> | 98% | 54,824 psi | 88% | 2992 fps | 97.8% |
| Lovex S065 | <<locked>> | 86% | 52,997 psi | 85% | 2828 fps | 99.9% |
| Lovex S070 | <<locked>> | 88% | 54,375 psi | 87% | 2871 fps | 99.6% |
| Lovex S071ᴾ | <<locked>> | 100% | 50,676 psi | 81% | 2825 fps | 99.6% |
| Norma 204 | <<locked>> | 88% | 53,142 psi | 85% | 2890 fps | 98.3% |
| Norma MRP | <<locked>> | 94% | 52,721 psi | 85% | 2976 fps | 99.4% |
| Norma URP | <<locked>> | 88% | 53,476 psi | 86% | 2890 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 55,274 psi | 89% | 3009 fps | 98.2% |
| Ramshot Hunter | <<locked>> | 90% | 56,057 psi | 90% | 2949 fps | 99.9% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 53,316 psi | 85% | 2943 fps | 99.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,652 psi | 60% | 1860 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 55,245 psi | 89% | 2867 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 52,533 psi | 84% | 2917 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 55,056 psi | 88% | 2936 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 53,026 psi | 85% | 2956 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 48,936 psi | 78% | 2969 fps | 99.4% |
| Rottweil R 903 | <<locked>> | 84% | 55,521 psi | 89% | 2864 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 53,809 psi | 86% | 2874 fps | 97.6% |
| Rottweil R 905 | <<locked>> | 94% | 54,694 psi | 88% | 2933 fps | 98.8% |
| Rottweil R 907 | <<locked>> | 86% | 54,549 psi | 87% | 2858 fps | 99.2% |
| Shooters World Long Rifle | <<locked>> | 86% | 52,997 psi | 85% | 2828 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 88% | 54,375 psi | 87% | 2871 fps | 99.6% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 53,606 psi | 86% | 2871 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 55,927 psi | 90% | 2743 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 55,883 psi | 90% | 2835 fps | 99.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 54,244 psi | 87% | 2930 fps | 98.7% |
| Somchem S355 | <<locked>> | 84% | 55,376 psi | 89% | 2858 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 55,230 psi | 89% | 2864 fps | 97.1% |
| Somchem S365 | <<locked>> | 90% | 53,534 psi | 86% | 2897 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 55,274 psi | 89% | 2910 fps | 99.3% |
| Vihtavuori N150 | <<locked>> | 84% | 53,055 psi | 85% | 2782 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 55,521 psi | 89% | 2887 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 54,534 psi | 87% | 2884 fps | 99% |
| Vihtavuori N550 | <<locked>> | 88% | 54,607 psi | 88% | 2890 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 52,779 psi | 85% | 2907 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 52,794 psi | 85% | 2963 fps | 97% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 52,228 psi | 84% | 2940 fps | 97.1% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 54,998 psi | 88% | 2848 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 53,447 psi | 86% | 2910 fps | 99.5% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 54,215 psi | 87% | 3064 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 55,085 psi | 88% | 2900 fps | 98.7% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 82% | 33,214 psi | 53% | 2474 fps | 95.7% |
| Accurate 4350 | <<locked>> | 80% | 41,800 psi | 67% | 2680 fps | 99.4% |
| Accurate High Country | 53.6 gr | 88% | 44,164 psi | 71% | 2815 fps | 95.4% |
| Accurate MAGPRO | <<locked>> | 92% | 48,109 psi | 77% | 2881 fps | 95.1% |
| ADI AR 2208 | <<locked>> | 80% | 50,328 psi | 81% | 2776 fps | 100% |
| ADI AR 2209 | <<locked>> | 84% | 40,161 psi | 64% | 2664 fps | 95.2% |
| ADI AR 2213 | <<locked>> | 92% | 46,688 psi | 75% | 2828 fps | 95.8% |
| ADI AR 2225 | <<locked>> | 96% | 34,882 psi | 56% | 2605 fps | 95% |
| Alliant Power Pro Varmint | <<locked>> | 84% | 40,495 psi | 65% | 2667 fps | 95.4% |
| Alliant Power Pro Varmint | <<locked>> | 84% | 40,495 psi | 65% | 2667 fps | 95.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 51,271 psi | 82% | 2799 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 40,263 psi | 65% | 2690 fps | 99.5% |
| Alliant Reloder-17 | <<locked>> | 80% | 46,137 psi | 74% | 2815 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 40,089 psi | 64% | 2657 fps | 95.3% |
| Alliant Reloder-22 | <<locked>> | 88% | 40,654 psi | 65% | 2713 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 80% | 29,820 psi | 48% | 2444 fps | 98% |
| Alliant Reloder-25 | <<locked>> | 86% | 31,763 psi | 51% | 2516 fps | 95.7% |
| Alliant Reloder-26 | <<locked>> | 80% | 32,097 psi | 51% | 2566 fps | 96.7% |
| Bofors RP15 | <<locked>> | 90% | 40,118 psi | 64% | 2700 fps | 95.3% |
| Bofors RP3 | <<locked>> | 80% | 51,764 psi | 83% | 2812 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 42,641 psi | 68% | 2785 fps | 95.4% |
| Bofors RP5 | <<locked>> | 88% | 40,654 psi | 65% | 2713 fps | 95.6% |
| Bofors RP7 | <<locked>> | 80% | 45,266 psi | 73% | 2694 fps | 97.8% |
| Hodgdon H1000 | <<locked>> | 96% | 42,888 psi | 69% | 2743 fps | 95.5% |
| Hodgdon H380 | <<locked>> | 80% | 51,880 psi | 83% | 2825 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 43,526 psi | 70% | 2726 fps | 97.9% |
| Hodgdon H4350 | <<locked>> | 80% | 46,267 psi | 74% | 2746 fps | 97.4% |
| Hodgdon H4831 | <<locked>> | 90% | 46,804 psi | 75% | 2776 fps | 95.1% |
| Hodgdon H4831 SC | <<locked>> | 92% | 49,008 psi | 79% | 2818 fps | 95.7% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 37,884 psi | 61% | 2579 fps | 99.7% |
| Hodgdon Retumbo | <<locked>> | 94% | 40,074 psi | 64% | 2779 fps | 96% |
| Hodgdon Superformance | <<locked>> | 80% | 42,699 psi | 68% | 2746 fps | 97.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,427 psi | 44% | 1617 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 52,982 psi | 85% | 2808 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 40,785 psi | 65% | 2621 fps | 96.7% |
| IMR 4451 Enduron | <<locked>> | 80% | 46,644 psi | 75% | 2720 fps | 98.4% |
| IMR 4831 | <<locked>> | 80% | 39,972 psi | 64% | 2628 fps | 99.2% |
| IMR 4955 Enduron | <<locked>> | 88% | 45,484 psi | 73% | 2717 fps | 95% |
| IMR 7828 SSC | <<locked>> | 92% | 44,860 psi | 72% | 2805 fps | 95.3% |
| Lovex S065 | <<locked>> | 80% | 44,121 psi | 71% | 2671 fps | 99% |
| Lovex S070 | <<locked>> | 80% | 42,380 psi | 68% | 2654 fps | 97.8% |
| Lovex S071 | <<locked>> | 86% | 32,416 psi | 52% | 2454 fps | 95.4% |
| Norma 204 | <<locked>> | 80% | 40,292 psi | 65% | 2644 fps | 95.1% |
| Norma MRP | 51.2 gr | 84% | 37,101 psi | 59% | 2661 fps | 95.9% |
| Norma URP | <<locked>> | 80% | 41,263 psi | 66% | 2671 fps | 99.3% |
| Ramshot Grand | <<locked>> | 92% | 44,628 psi | 72% | 2812 fps | 95.7% |
| Ramshot Hunter | <<locked>> | 80% | 40,016 psi | 64% | 2661 fps | 97.8% |
| Ramshot Magnum | <<locked>> | 90% | 37,072 psi | 59% | 2621 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,992 psi | 45% | 1657 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 51,779 psi | 83% | 2812 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 48,936 psi | 78% | 2861 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 41,756 psi | 67% | 2700 fps | 99.2% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 40,161 psi | 64% | 2710 fps | 98.9% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 36,883 psi | 59% | 2694 fps | 95.9% |
| Rottweil R 903 | <<locked>> | 80% | 48,791 psi | 78% | 2759 fps | 100% |
| Rottweil R 904 | <<locked>> | 86% | 44,338 psi | 71% | 2700 fps | 95.3% |
| Rottweil R 905 | <<locked>> | 84% | 39,247 psi | 63% | 2641 fps | 95.2% |
| Rottweil R 907 | <<locked>> | 80% | 45,266 psi | 73% | 2694 fps | 97.8% |
| Shooters World Long Rifle | <<locked>> | 80% | 44,121 psi | 71% | 2671 fps | 99% |
| Shooters World SW4350 | <<locked>> | 80% | 42,380 psi | 68% | 2654 fps | 97.8% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 49,937 psi | 80% | 2812 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 49,487 psi | 79% | 2651 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 43,091 psi | 69% | 2615 fps | 97.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 38,899 psi | 62% | 2635 fps | 95% |
| Somchem S355 | <<locked>> | 80% | 48,834 psi | 78% | 2756 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 48,327 psi | 77% | 2746 fps | 95.5% |
| Somchem S365 | <<locked>> | 80% | 38,043 psi | 61% | 2631 fps | 100% |
| Somchem S385 | <<locked>> | 82% | 37,275 psi | 60% | 2569 fps | 95.4% |
| Vihtavuori N150 | <<locked>> | 80% | 46,702 psi | 75% | 2680 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 42,641 psi | 68% | 2667 fps | 99.4% |
| Vihtavuori N165 | <<locked>> | 88% | 39,291 psi | 63% | 2605 fps | 95.8% |
| Vihtavuori N550 | <<locked>> | 80% | 42,061 psi | 67% | 2667 fps | 99.2% |
| Vihtavuori N555 | <<locked>> | 80% | 33,286 psi | 53% | 2523 fps | 98% |
| Vihtavuori N560 | 54.8 gr | 90% | 45,818 psi | 73% | 2835 fps | 95.1% |
| Vihtavuori N565 | <<locked>> | 96% | 45,571 psi | 73% | 2815 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 41,756 psi | 67% | 2635 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 43,758 psi | 70% | 2733 fps | 98% |
| Winchester StaBALL HD | <<locked>> | 80% | 26,353 psi | 42% | 2428 fps | 97.4% |
| Winchester Supreme 780 | <<locked>> | 88% | 41,930 psi | 67% | 2667 fps | 95.9% |
Recommended = one of the top powders for this cartridge and bullet combination.
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 79 powders for 6.5 x 64 (Reb) loaded with the .264 | 130gr | Sierra Tipped GameKing. Winchester StaBALL HD delivers the highest muzzle velocity at 3,064 fps; across all powders the maximum-charge window runs from 1,814 fps to 3,064 fps. ADI AR 2225 gives the best case fill at 100 %, and 79 of the 79 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 59–90 %, leaving at least 10 % headroom. The 130.0 gr projectile in 0.264" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. ADI AR 2225, Alliant Reloder-25, Bofors RP15 reach 100 % fill or more at maximum charge, so these are compressed loads: they need a long drop tube to seat cleanly and react sensitively to the case capacity of your own brass lot. Accurate High Country, Norma MRP, Vihtavuori N560 rank at the top here: for 6.5 x 64 (Reb) with the .264 | 130gr | Sierra Tipped GameKing they combine a high case fill with complete burn and sit in the upper velocity band. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.