Load Specifications
Load data in caliber 6.5 x 64 (Reb) with .264 | 125gr | SUS-TAC HPT bullet and 81 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Norma MRP, Vihtavuori N560 and ReloadSwiss RS 70.
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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You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2700 | <<locked>> | 82% | 55,230 psi | 89% | 2877 fps | 98.9% |
| Accurate 3100 | <<locked>> | 98% | 53,896 psi | 86% | 2923 fps | 99.7% |
| Accurate 4064 | <<locked>> | 82% | 54,853 psi | 88% | 2861 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 55,825 psi | 90% | 2972 fps | 100% |
| Accurate MAGPRO | <<locked>> | 98% | 56,275 psi | 90% | 3071 fps | 96.5% |
| ADI AR 2208 | <<locked>> | 84% | 54,737 psi | 88% | 2894 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 52,997 psi | 85% | 2956 fps | 97.9% |
| ADI AR 2213 | <<locked>> | 98% | 54,244 psi | 87% | 3009 fps | 97% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 55,608 psi | 89% | 2913 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 55,593 psi | 89% | 2936 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 53,098 psi | 85% | 2976 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 54,288 psi | 87% | 2999 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 56,188 psi | 90% | 3005 fps | 98.5% |
| Alliant Reloder-22 | <<locked>> | 98% | 53,563 psi | 86% | 3009 fps | 98.3% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 54,288 psi | 87% | 2992 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 47,210 psi | 76% | 2927 fps | 99.6% |
| Alliant Reloder-26 | <<locked>> | 96% | 54,534 psi | 87% | 3077 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 52,765 psi | 85% | 2992 fps | 98% |
| Bofors RP3 | <<locked>> | 82% | 53,127 psi | 85% | 2881 fps | 100% |
| Bofors RP5 | <<locked>> | 98% | 53,563 psi | 86% | 3009 fps | 98.3% |
| Bofors RP7 | <<locked>> | 88% | 55,883 psi | 90% | 2923 fps | 99.1% |
| Hodgdon H380 | <<locked>> | 82% | 53,301 psi | 85% | 2897 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 88% | 54,244 psi | 87% | 2969 fps | 99.3% |
| Hodgdon H4350 | <<locked>> | 86% | 53,925 psi | 86% | 2927 fps | 98.4% |
| Hodgdon H4831 | <<locked>> | 96% | 54,375 psi | 87% | 2953 fps | 96.4% |
| Hodgdon H4831 SC | <<locked>> | 96% | 53,447 psi | 86% | 2936 fps | 96.2% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 53,534 psi | 86% | 2900 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 46,151 psi | 74% | 2959 fps | 97.4% |
| Hodgdon Superformance | <<locked>> | 88% | 54,491 psi | 87% | 3002 fps | 99.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,680 psi | 59% | 1841 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 54,201 psi | 87% | 2877 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 53,577 psi | 86% | 2904 fps | 98.8% |
| IMR 4451 Enduron | <<locked>> | 86% | 53,766 psi | 86% | 2890 fps | 99.1% |
| IMR 4831 | <<locked>> | 92% | 56,130 psi | 90% | 2963 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 56,043 psi | 90% | 2943 fps | 96.9% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 55,492 psi | 89% | 3041 fps | 97.4% |
| Lovex S062 | <<locked>> | 82% | 54,534 psi | 87% | 2871 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 54,201 psi | 87% | 2890 fps | 99.8% |
| Lovex S070 | <<locked>> | 90% | 55,608 psi | 89% | 2936 fps | 99.5% |
| Lovex S071ᴾ | <<locked>> | 100% | 48,167 psi | 77% | 2828 fps | 99.1% |
| Norma 203B | <<locked>> | 82% | 54,955 psi | 88% | 2920 fps | 100% |
| Norma 204 | <<locked>> | 90% | 54,027 psi | 87% | 2949 fps | 98% |
| Norma MRP | <<locked>> | 96% | 53,345 psi | 86% | 3035 fps | 99.2% |
| Norma URP | <<locked>> | 90% | 54,549 psi | 87% | 2956 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 55,840 psi | 90% | 2946 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 56,304 psi | 90% | 3068 fps | 97.9% |
| Ramshot Hunter | <<locked>> | 90% | 53,200 psi | 85% | 2953 fps | 99.6% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 50,415 psi | 81% | 2936 fps | 98.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,217 psi | 60% | 1880 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 52,939 psi | 85% | 2877 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 53,708 psi | 86% | 2989 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 55,782 psi | 89% | 2995 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 54,114 psi | 87% | 3022 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 46,383 psi | 74% | 2959 fps | 98.5% |
| Rottweil R 902 | <<locked>> | 82% | 56,101 psi | 90% | 2877 fps | 100% |
| Rottweil R 903 | <<locked>> | 84% | 53,272 psi | 85% | 2881 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 54,810 psi | 88% | 2933 fps | 97.2% |
| Rottweil R 905 | <<locked>> | 96% | 55,564 psi | 89% | 2992 fps | 98.5% |
| Rottweil R 907 | <<locked>> | 88% | 55,883 psi | 90% | 2923 fps | 99.1% |
| Shooters World Long Rifle | <<locked>> | 88% | 54,201 psi | 87% | 2890 fps | 99.8% |
| Shooters World Precision | <<locked>> | 82% | 54,534 psi | 87% | 2871 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 55,608 psi | 89% | 2936 fps | 99.5% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 54,737 psi | 88% | 2936 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 53,969 psi | 87% | 2762 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 53,679 psi | 86% | 2841 fps | 99.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 55,100 psi | 88% | 2989 fps | 98.4% |
| Somchem S355 | <<locked>> | 84% | 52,982 psi | 85% | 2871 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 52,779 psi | 85% | 2864 fps | 96% |
| Somchem S365 | <<locked>> | 92% | 54,128 psi | 87% | 2959 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 56,130 psi | 90% | 2969 fps | 99.1% |
| Vihtavuori N150 | <<locked>> | 86% | 54,259 psi | 87% | 2848 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 56,391 psi | 90% | 2949 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 55,521 psi | 89% | 2943 fps | 98.8% |
| Vihtavuori N540 | <<locked>> | 82% | 55,172 psi | 88% | 2848 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 55,738 psi | 89% | 2956 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 53,345 psi | 86% | 2966 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 53,548 psi | 86% | 3022 fps | 96.6% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 56,202 psi | 90% | 2913 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 54,534 psi | 87% | 2972 fps | 99.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 50,328 psi | 81% | 3064 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 56,159 psi | 90% | 2959 fps | 98.4% |
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 2700 | <<locked>> | 80% | 51,721 psi | 83% | 2818 fps | 98.3% |
| Accurate 3100 | <<locked>> | 84% | 33,562 psi | 54% | 2523 fps | 95.3% |
| Accurate 4064 | <<locked>> | 80% | 51,547 psi | 83% | 2812 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 39,726 psi | 64% | 2684 fps | 98.7% |
| Accurate MAGPRO | <<locked>> | 96% | 52,431 psi | 84% | 3002 fps | 95.6% |
| ADI AR 2208 | <<locked>> | 80% | 48,167 psi | 77% | 2782 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 88% | 43,613 psi | 70% | 2779 fps | 95.7% |
| ADI AR 2213 | <<locked>> | 94% | 47,500 psi | 76% | 2884 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 48,921 psi | 78% | 2808 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 52,344 psi | 84% | 2884 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 38,406 psi | 62% | 2690 fps | 98.8% |
| Alliant Reloder-17 | <<locked>> | 80% | 43,642 psi | 70% | 2818 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 43,381 psi | 70% | 2772 fps | 95.7% |
| Alliant Reloder-22 | <<locked>> | 90% | 41,031 psi | 66% | 2762 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 80% | 28,311 psi | 45% | 2441 fps | 96.8% |
| Alliant Reloder-25 | <<locked>> | 88% | 32,053 psi | 51% | 2562 fps | 95% |
| Alliant Reloder-26 | <<locked>> | 80% | 30,269 psi | 49% | 2549 fps | 95% |
| Bofors RP15 | <<locked>> | 94% | 43,366 psi | 70% | 2815 fps | 95.7% |
| Bofors RP3 | <<locked>> | 80% | 49,603 psi | 80% | 2825 fps | 100% |
| Bofors RP5 | <<locked>> | 90% | 41,031 psi | 66% | 2762 fps | 95.1% |
| Bofors RP7 | <<locked>> | 80% | 43,279 psi | 69% | 2694 fps | 96.8% |
| Hodgdon H380 | <<locked>> | 80% | 49,821 psi | 80% | 2838 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 80% | 41,568 psi | 67% | 2730 fps | 96.9% |
| Hodgdon H4350 | <<locked>> | 80% | 44,425 psi | 71% | 2753 fps | 96.4% |
| Hodgdon H4831 | <<locked>> | 94% | 51,039 psi | 82% | 2894 fps | 95.6% |
| Hodgdon H4831 SC | <<locked>> | 94% | 49,821 psi | 80% | 2874 fps | 95.3% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 35,998 psi | 58% | 2582 fps | 99.2% |
| Hodgdon Retumbo | <<locked>> | 96% | 40,538 psi | 65% | 2825 fps | 95.3% |
| Hodgdon Superformance | <<locked>> | 80% | 40,553 psi | 65% | 2740 fps | 96.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,383 psi | 44% | 1644 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 50,691 psi | 81% | 2818 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 38,899 psi | 62% | 2618 fps | 95.5% |
| IMR 4451 Enduron | <<locked>> | 80% | 44,643 psi | 72% | 2723 fps | 97.5% |
| IMR 4831 | <<locked>> | 80% | 38,072 psi | 61% | 2631 fps | 98.4% |
| IMR 4955 Enduron | <<locked>> | 92% | 49,400 psi | 79% | 2831 fps | 95.4% |
| IMR 7828 SSC | <<locked>> | 96% | 48,501 psi | 78% | 2917 fps | 95.7% |
| Lovex S062 | <<locked>> | 80% | 51,010 psi | 82% | 2815 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 42,322 psi | 68% | 2674 fps | 98.3% |
| Lovex S070 | <<locked>> | 80% | 40,611 psi | 65% | 2657 fps | 96.8% |
| Lovex S071 | <<locked>> | 90% | 34,780 psi | 56% | 2552 fps | 95.8% |
| Norma 203B | <<locked>> | 80% | 51,677 psi | 83% | 2871 fps | 100% |
| Norma 204 | <<locked>> | 84% | 44,237 psi | 71% | 2769 fps | 95.7% |
| Norma MRP | 51.6 gr | 86% | 37,608 psi | 60% | 2717 fps | 95.4% |
| Norma URP | <<locked>> | 80% | 39,349 psi | 63% | 2677 fps | 98.6% |
| Ramshot Big Game | <<locked>> | 80% | 52,257 psi | 84% | 2894 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 45,295 psi | 73% | 2864 fps | 95.1% |
| Ramshot Hunter | <<locked>> | 80% | 38,159 psi | 61% | 2661 fps | 96.8% |
| Ramshot Magnum | <<locked>> | 94% | 40,292 psi | 65% | 2733 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,905 psi | 45% | 1683 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 49,574 psi | 79% | 2818 fps | 99% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 46,354 psi | 74% | 2871 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 39,479 psi | 63% | 2700 fps | 98.5% |
| ReloadSwiss RS 70 | 49 gr | 80% | 38,116 psi | 61% | 2707 fps | 97.9% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 37,318 psi | 60% | 2740 fps | 95.2% |
| Rottweil R 902 | <<locked>> | 80% | 52,808 psi | 85% | 2828 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 46,688 psi | 75% | 2772 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 48,153 psi | 77% | 2815 fps | 95.7% |
| Rottweil R 905 | <<locked>> | 88% | 42,540 psi | 68% | 2756 fps | 95.7% |
| Rottweil R 907 | <<locked>> | 80% | 43,279 psi | 69% | 2694 fps | 96.8% |
| Shooters World Long Rifle | <<locked>> | 80% | 42,322 psi | 68% | 2674 fps | 98.3% |
| Shooters World Precision | <<locked>> | 80% | 51,010 psi | 82% | 2815 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 40,611 psi | 65% | 2657 fps | 96.8% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 47,863 psi | 77% | 2825 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 47,616 psi | 76% | 2671 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 41,437 psi | 66% | 2618 fps | 96.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 42,148 psi | 68% | 2749 fps | 95.5% |
| Somchem S355 | <<locked>> | 80% | 46,862 psi | 75% | 2769 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 49,429 psi | 79% | 2805 fps | 95.2% |
| Somchem S365 | <<locked>> | 80% | 35,752 psi | 57% | 2628 fps | 99.8% |
| Somchem S385 | <<locked>> | 84% | 37,840 psi | 61% | 2621 fps | 95% |
| Vihtavuori N150 | <<locked>> | 80% | 44,773 psi | 72% | 2694 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 40,727 psi | 65% | 2674 fps | 98.8% |
| Vihtavuori N165 | <<locked>> | 90% | 39,726 psi | 64% | 2654 fps | 95.3% |
| Vihtavuori N540 | <<locked>> | 80% | 51,721 psi | 83% | 2799 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 40,205 psi | 64% | 2677 fps | 98.6% |
| Vihtavuori N555 | <<locked>> | 80% | 31,430 psi | 50% | 2520 fps | 96.9% |
| Vihtavuori N560 | 56.4 gr | 94% | 49,966 psi | 80% | 2959 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 39,784 psi | 64% | 2641 fps | 99.9% |
| Winchester 760 | <<locked>> | 80% | 41,568 psi | 67% | 2730 fps | 96.9% |
| Winchester StaBALL HD | <<locked>> | 80% | 25,048 psi | 40% | 2408 fps | 95.4% |
| Winchester Supreme 780 | <<locked>> | 90% | 42,540 psi | 68% | 2720 fps | 95.4% |
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 81 powders for 6.5 x 64 (Reb) loaded with the .264 | 125gr | SUS-TAC HPT. Alliant Reloder-26 delivers the highest muzzle velocity at 3,077 fps; across all powders the maximum-charge window runs from 1,841 fps to 3,077 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 81 of the 81 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 125.0 gr projectile in 0.264" calls for a 1:8.0 twist; slower twists will usually not stabilise this weight. Alliant Reloder-23, 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. Norma MRP, Vihtavuori N560, ReloadSwiss RS 70 rank at the top here: for 6.5 x 64 (Reb) with the .264 | 125gr | SUS-TAC HPT 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.