Load Specifications
Load data in caliber 6.5 x 68 with .264 | 144gr | Sierra MatchKing bullet and 56 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Vihtavuori N570, Hodgdon Retumbo and ReloadSwiss RS 76.
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: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 88% | 55,941 psi | 88% | 2887 fps | 100% |
| Accurate High Country | <<locked>> | 86% | 57,696 psi | 90% | 3048 fps | 100% |
| Accurate MAGPRO | <<locked>> | 86% | 54,694 psi | 86% | 2992 fps | 99.3% |
| ADI AR 2209 | <<locked>> | 86% | 57,130 psi | 90% | 2972 fps | 100% |
| ADI AR 2213 | <<locked>> | 88% | 55,593 psi | 87% | 2989 fps | 99.8% |
| ADI AR 2217 | <<locked>> | 96% | 53,954 psi | 85% | 2966 fps | 99.9% |
| ADI AR 2218ᴾ | <<locked>> | 100% | 54,244 psi | 85% | 3081 fps | 98.3% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 56,391 psi | 88% | 3045 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 82% | 57,479 psi | 90% | 2953 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 56,840 psi | 89% | 2966 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 88% | 56,043 psi | 88% | 2986 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 90% | 57,711 psi | 90% | 2943 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 92% | 54,215 psi | 85% | 2966 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 84% | 54,418 psi | 85% | 2976 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 98% | 55,666 psi | 87% | 3061 fps | 98.4% |
| Alliant Reloder-50ᴾ | <<locked>> | 100% | 51,082 psi | 80% | 2979 fps | 97% |
| Baschieri & Pellagri 109 | <<locked>> | 90% | 56,115 psi | 88% | 2953 fps | 98.5% |
| Bofors RP15 | <<locked>> | 90% | 55,259 psi | 87% | 2972 fps | 100% |
| Bofors RP30 | <<locked>> | 96% | 57,740 psi | 90% | 3038 fps | 100% |
| Bofors RP5 | <<locked>> | 88% | 56,043 psi | 88% | 2986 fps | 100% |
| Hodgdon H1000 | <<locked>> | 94% | 55,477 psi | 87% | 2986 fps | 100% |
| Hodgdon H4831 | <<locked>> | 86% | 54,636 psi | 86% | 2920 fps | 99.5% |
| Hodgdon H4831 SC | <<locked>> | 88% | 57,508 psi | 90% | 2966 fps | 99.7% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 57,595 psi | 90% | 2874 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 94% | 56,956 psi | 89% | 3110 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,782 psi | 59% | 1860 fps | 100% |
| IMR 4350 | <<locked>> | 82% | 55,898 psi | 88% | 2890 fps | 100% |
| IMR 4831 | <<locked>> | 82% | 56,492 psi | 89% | 2890 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 86% | 55,158 psi | 86% | 2900 fps | 99.6% |
| IMR 7828 SSC | <<locked>> | 88% | 54,041 psi | 85% | 2976 fps | 99.8% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 51,837 psi | 81% | 2966 fps | 99.8% |
| Lovex S071 | <<locked>> | 94% | 57,537 psi | 90% | 2910 fps | 100% |
| Norma 204 | <<locked>> | 82% | 57,043 psi | 89% | 2949 fps | 100% |
| Norma 217ᴾ | <<locked>> | 100% | 52,678 psi | 83% | 2986 fps | 100% |
| Norma MRP | <<locked>> | 86% | 55,985 psi | 88% | 2999 fps | 100% |
| Ramshot Grand | <<locked>> | 88% | 55,056 psi | 86% | 2995 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 82% | 57,029 psi | 89% | 2946 fps | 100% |
| Ramshot Magnum | <<locked>> | 92% | 57,566 psi | 90% | 2986 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,638 psi | 61% | 1900 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 53,606 psi | 84% | 3038 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 96% | 57,246 psi | 90% | 3071 fps | 99.7% |
| Rottweil R 904 | <<locked>> | 84% | 54,201 psi | 85% | 2887 fps | 99.7% |
| Rottweil R 905 | <<locked>> | 86% | 56,536 psi | 89% | 2956 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 56,130 psi | 88% | 2949 fps | 100% |
| Somchem S361 | <<locked>> | 84% | 55,347 psi | 87% | 2877 fps | 99.5% |
| Somchem S365 | <<locked>> | 82% | 55,912 psi | 88% | 2884 fps | 100% |
| Somchem S385 | <<locked>> | 86% | 56,797 psi | 89% | 2923 fps | 100% |
| Vihtavuori N165 | <<locked>> | 90% | 56,681 psi | 89% | 2910 fps | 100% |
| Vihtavuori N170 | <<locked>> | 94% | 55,811 psi | 87% | 2936 fps | 96.9% |
| Vihtavuori N555 | <<locked>> | 86% | 56,144 psi | 88% | 2920 fps | 100% |
| Vihtavuori N560 | <<locked>> | 86% | 55,463 psi | 87% | 3002 fps | 99.7% |
| Vihtavuori N565 | <<locked>> | 92% | 56,260 psi | 88% | 2995 fps | 99.8% |
| Vihtavuori N568 | <<locked>> | 96% | 57,638 psi | 90% | 3068 fps | 99.5% |
| Vihtavuori N570 | <<locked>> | 96% | 54,781 psi | 86% | 3064 fps | 97.9% |
| Winchester StaBALL HD | <<locked>> | 88% | 53,606 psi | 84% | 2979 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 88% | 56,623 psi | 89% | 2920 fps | 100% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 80% | 42,844 psi | 67% | 2671 fps | 100% |
| Accurate High Country | <<locked>> | 80% | 46,963 psi | 74% | 2861 fps | 99% |
| Accurate MAGPRO | <<locked>> | 80% | 44,367 psi | 70% | 2802 fps | 97.6% |
| ADI AR 2209 | <<locked>> | 80% | 46,862 psi | 73% | 2799 fps | 99.5% |
| ADI AR 2213 | <<locked>> | 80% | 42,061 psi | 66% | 2743 fps | 98% |
| ADI AR 2217 | <<locked>> | 82% | 33,605 psi | 53% | 2543 fps | 95.5% |
| ADI AR 2218 | <<locked>> | 94% | 43,526 psi | 68% | 2858 fps | 95.1% |
| ADI AR 2225 | <<locked>> | 80% | 28,776 psi | 45% | 2451 fps | 96.5% |
| Alliant Reloder-16 | <<locked>> | 80% | 53,824 psi | 84% | 2900 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 46,760 psi | 73% | 2792 fps | 99.5% |
| Alliant Reloder-22 | <<locked>> | 80% | 42,786 psi | 67% | 2749 fps | 99.1% |
| Alliant Reloder-23 | <<locked>> | 80% | 41,698 psi | 65% | 2687 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 35,969 psi | 56% | 2628 fps | 99.8% |
| Alliant Reloder-26 | <<locked>> | 80% | 47,065 psi | 74% | 2858 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 92% | 44,527 psi | 70% | 2854 fps | 95.8% |
| Alliant Reloder-50 | <<locked>> | 98% | 47,456 psi | 74% | 2907 fps | 96.1% |
| Baschieri & Pellagri 109 | <<locked>> | 82% | 43,511 psi | 68% | 2717 fps | 95.6% |
| Bofors RP15 | <<locked>> | 80% | 39,929 psi | 63% | 2687 fps | 98.4% |
| Bofors RP30 | <<locked>> | 80% | 33,504 psi | 53% | 2559 fps | 95.7% |
| Bofors RP5 | <<locked>> | 80% | 42,786 psi | 67% | 2749 fps | 99.1% |
| Hodgdon H1000 | <<locked>> | 80% | 34,171 psi | 54% | 2559 fps | 96.5% |
| Hodgdon H4831 | <<locked>> | 80% | 44,701 psi | 70% | 2743 fps | 98% |
| Hodgdon H4831 SC | <<locked>> | 80% | 43,874 psi | 69% | 2726 fps | 97.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 50,531 psi | 79% | 2772 fps | 100% |
| Hodgdon Retumbo | 57.2 gr | 80% | 35,114 psi | 55% | 2667 fps | 98.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,384 psi | 44% | 1663 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 52,504 psi | 82% | 2838 fps | 100% |
| IMR 4831 | <<locked>> | 80% | 52,997 psi | 83% | 2841 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 45,745 psi | 72% | 2733 fps | 98.4% |
| IMR 7828 SSC | <<locked>> | 80% | 40,741 psi | 64% | 2723 fps | 97.7% |
| IMR 8133 Enduron | <<locked>> | 88% | 34,418 psi | 54% | 2605 fps | 96% |
| Lovex S071 | <<locked>> | 80% | 36,956 psi | 58% | 2549 fps | 99.5% |
| Norma 204 | <<locked>> | 80% | 53,476 psi | 84% | 2894 fps | 99.9% |
| Norma 217 | <<locked>> | 82% | 28,253 psi | 44% | 2451 fps | 95.4% |
| Norma MRP | <<locked>> | 80% | 45,498 psi | 71% | 2822 fps | 99.9% |
| Ramshot Grand | <<locked>> | 80% | 40,901 psi | 64% | 2740 fps | 98.2% |
| Ramshot Hunter | <<locked>> | 80% | 53,563 psi | 84% | 2890 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 36,622 psi | 57% | 2612 fps | 98.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,993 psi | 45% | 1699 fps | 100% |
| ReloadSwiss RS 76 | 61.2 gr | 80% | 34,243 psi | 54% | 2641 fps | 98.8% |
| ReloadSwiss RS 80 | <<locked>> | 84% | 36,303 psi | 57% | 2664 fps | 95.2% |
| Rottweil R 904 | <<locked>> | 80% | 47,703 psi | 75% | 2772 fps | 99.1% |
| Rottweil R 905 | <<locked>> | 80% | 46,470 psi | 73% | 2785 fps | 99.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 46,122 psi | 72% | 2779 fps | 99.5% |
| Somchem S361 | <<locked>> | 80% | 48,544 psi | 76% | 2762 fps | 98.7% |
| Somchem S365 | <<locked>> | 80% | 52,359 psi | 82% | 2835 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 46,731 psi | 73% | 2759 fps | 99.9% |
| Vihtavuori N165 | <<locked>> | 80% | 40,901 psi | 64% | 2635 fps | 99.1% |
| Vihtavuori N170 | <<locked>> | 90% | 48,718 psi | 76% | 2812 fps | 95.2% |
| Vihtavuori N555 | <<locked>> | 80% | 46,238 psi | 72% | 2766 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 45,208 psi | 71% | 2818 fps | 98.3% |
| Vihtavuori N565 | <<locked>> | 80% | 37,434 psi | 59% | 2631 fps | 96.4% |
| Vihtavuori N568 | <<locked>> | 84% | 37,710 psi | 59% | 2684 fps | 95.1% |
| Vihtavuori N570 | 66.8 gr | 90% | 44,266 psi | 69% | 2864 fps | 95.2% |
| Winchester StaBALL HD | <<locked>> | 80% | 39,740 psi | 62% | 2749 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 43,105 psi | 68% | 2690 fps | 99.1% |
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 56 powders for 6.5 x 68 loaded with the .264 | 144gr | Sierra MatchKing. Hodgdon Retumbo delivers the highest muzzle velocity at 3,110 fps; across all powders the maximum-charge window runs from 1,860 fps to 3,110 fps. ADI AR 2218 gives the best case fill at 100 %, and 56 of the 56 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 59–90 %, leaving at least 10 % headroom. The 144.0 gr projectile in 0.264" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. ADI AR 2218, ADI AR 2225, Alliant Reloder-50 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. Vihtavuori N570, Hodgdon Retumbo, ReloadSwiss RS 76 rank at the top here: for 6.5 x 68 with the .264 | 144gr | Sierra MatchKing 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.