Load Specifications
Load data in caliber 6.5 x 68 with .264 | 150gr | Sierra MatchKing bullet and 53 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon Retumbo, ReloadSwiss RS 76 and ReloadSwiss RS 80.
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% | 56,695 psi | 89% | 2841 fps | 100% |
| Accurate High Country | <<locked>> | 84% | 54,563 psi | 86% | 2940 fps | 99.9% |
| Accurate MAGPRO | <<locked>> | 86% | 55,564 psi | 87% | 2953 fps | 99.6% |
| ADI AR 2209 | <<locked>> | 84% | 54,273 psi | 85% | 2871 fps | 100% |
| ADI AR 2213 | <<locked>> | 88% | 56,391 psi | 88% | 2946 fps | 100% |
| ADI AR 2217 | <<locked>> | 96% | 54,679 psi | 86% | 2920 fps | 100% |
| ADI AR 2218ᴾ | <<locked>> | 100% | 54,839 psi | 86% | 3041 fps | 98.7% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 57,479 psi | 90% | 3002 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 57,464 psi | 90% | 2917 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 88% | 56,840 psi | 89% | 2940 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 88% | 54,781 psi | 86% | 2844 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 92% | 54,882 psi | 86% | 2917 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 84% | 55,376 psi | 87% | 2933 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 98% | 56,637 psi | 89% | 3025 fps | 98.8% |
| Alliant Reloder-50ᴾ | <<locked>> | 100% | 52,054 psi | 82% | 2946 fps | 97.6% |
| Baschieri & Pellagri 109 | <<locked>> | 90% | 56,695 psi | 89% | 2907 fps | 98.8% |
| Bofors RP15 | <<locked>> | 90% | 56,028 psi | 88% | 2930 fps | 100% |
| Bofors RP30 | <<locked>> | 94% | 54,810 psi | 86% | 2940 fps | 100% |
| Bofors RP5 | <<locked>> | 88% | 56,840 psi | 89% | 2940 fps | 100% |
| Hodgdon H1000 | <<locked>> | 94% | 56,289 psi | 88% | 2943 fps | 100% |
| Hodgdon H4831 | <<locked>> | 86% | 55,332 psi | 87% | 2874 fps | 99.7% |
| Hodgdon H4831 SC | <<locked>> | 86% | 54,273 psi | 85% | 2858 fps | 99.6% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 54,621 psi | 86% | 2776 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 92% | 53,969 psi | 85% | 3005 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,681 psi | 59% | 1814 fps | 100% |
| IMR 4350 | <<locked>> | 82% | 56,536 psi | 89% | 2844 fps | 100% |
| IMR 4831 | <<locked>> | 82% | 57,203 psi | 90% | 2841 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 86% | 55,927 psi | 88% | 2854 fps | 99.8% |
| IMR 7828 SSC | <<locked>> | 88% | 54,810 psi | 86% | 2930 fps | 99.9% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 52,707 psi | 83% | 2927 fps | 99.9% |
| Lovex S071 | <<locked>> | 92% | 54,853 psi | 86% | 2815 fps | 100% |
| Norma 217ᴾ | <<locked>> | 100% | 53,635 psi | 84% | 2946 fps | 100% |
| Norma MRP | <<locked>> | 86% | 56,826 psi | 89% | 2956 fps | 100% |
| Ramshot Grand | <<locked>> | 88% | 55,738 psi | 87% | 2949 fps | 100% |
| Ramshot Magnum | <<locked>> | 90% | 54,230 psi | 85% | 2881 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,754 psi | 61% | 1860 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 54,636 psi | 86% | 2995 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 94% | 53,722 psi | 84% | 2959 fps | 99.6% |
| Rottweil R 904 | <<locked>> | 84% | 54,911 psi | 86% | 2841 fps | 99.9% |
| Rottweil R 905 | <<locked>> | 86% | 57,145 psi | 90% | 2907 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 56,753 psi | 89% | 2904 fps | 100% |
| Somchem S361 | <<locked>> | 84% | 56,028 psi | 88% | 2835 fps | 99.7% |
| Somchem S365 | <<locked>> | 82% | 56,681 psi | 89% | 2835 fps | 100% |
| Somchem S385 | <<locked>> | 86% | 57,421 psi | 90% | 2874 fps | 100% |
| Vihtavuori N165 | <<locked>> | 90% | 57,479 psi | 90% | 2864 fps | 100% |
| Vihtavuori N170 | <<locked>> | 94% | 56,318 psi | 88% | 2890 fps | 97.3% |
| Vihtavuori N555 | <<locked>> | 86% | 56,797 psi | 89% | 2871 fps | 100% |
| Vihtavuori N560 | <<locked>> | 86% | 56,246 psi | 88% | 2959 fps | 99.8% |
| Vihtavuori N565 | <<locked>> | 92% | 57,014 psi | 89% | 2953 fps | 99.9% |
| Vihtavuori N568 | <<locked>> | 94% | 54,578 psi | 86% | 2963 fps | 99.4% |
| Vihtavuori N570 | <<locked>> | 96% | 55,767 psi | 87% | 3028 fps | 98.4% |
| Winchester StaBALL HD | <<locked>> | 88% | 54,665 psi | 86% | 2933 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 88% | 57,392 psi | 90% | 2877 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% | 43,439 psi | 68% | 2631 fps | 100% |
| Accurate High Country | <<locked>> | 80% | 47,514 psi | 74% | 2818 fps | 99.3% |
| Accurate MAGPRO | <<locked>> | 80% | 44,947 psi | 70% | 2762 fps | 98% |
| ADI AR 2209 | <<locked>> | 80% | 47,500 psi | 74% | 2759 fps | 99.7% |
| ADI AR 2213 | <<locked>> | 80% | 42,685 psi | 67% | 2707 fps | 98.5% |
| ADI AR 2217 | <<locked>> | 80% | 31,894 psi | 50% | 2451 fps | 95.2% |
| ADI AR 2218 | <<locked>> | 94% | 44,251 psi | 69% | 2831 fps | 96% |
| ADI AR 2225 | <<locked>> | 80% | 29,196 psi | 46% | 2421 fps | 97.3% |
| Alliant Reloder-19 | <<locked>> | 80% | 47,355 psi | 74% | 2753 fps | 99.7% |
| Alliant Reloder-22 | <<locked>> | 80% | 43,424 psi | 68% | 2710 fps | 99.4% |
| Alliant Reloder-23 | <<locked>> | 80% | 42,264 psi | 66% | 2644 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 36,564 psi | 57% | 2592 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 80% | 47,790 psi | 75% | 2815 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 90% | 41,974 psi | 66% | 2753 fps | 95.4% |
| Alliant Reloder-50 | <<locked>> | 96% | 44,686 psi | 70% | 2805 fps | 95.7% |
| Baschieri & Pellagri 109 | <<locked>> | 80% | 41,205 psi | 65% | 2618 fps | 95.3% |
| Bofors RP15 | <<locked>> | 80% | 40,466 psi | 63% | 2648 fps | 98.8% |
| Bofors RP30 | <<locked>> | 80% | 34,069 psi | 53% | 2526 fps | 96.4% |
| Bofors RP5 | <<locked>> | 80% | 43,424 psi | 68% | 2710 fps | 99.4% |
| Hodgdon H1000 | <<locked>> | 80% | 34,534 psi | 54% | 2523 fps | 97.1% |
| Hodgdon H4831 | <<locked>> | 80% | 45,324 psi | 71% | 2703 fps | 98.5% |
| Hodgdon H4831 SC | <<locked>> | 80% | 44,483 psi | 70% | 2687 fps | 98.3% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 51,358 psi | 80% | 2730 fps | 100% |
| Hodgdon Retumbo | 56.2 gr | 80% | 35,694 psi | 56% | 2638 fps | 98.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,297 psi | 44% | 1621 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 53,084 psi | 83% | 2792 fps | 100% |
| IMR 4831 | <<locked>> | 80% | 53,635 psi | 84% | 2789 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 46,267 psi | 73% | 2690 fps | 98.7% |
| IMR 7828 SSC | <<locked>> | 80% | 41,379 psi | 65% | 2687 fps | 98.2% |
| IMR 8133 Enduron | <<locked>> | 86% | 32,793 psi | 51% | 2516 fps | 95.7% |
| Lovex S071 | <<locked>> | 80% | 37,594 psi | 59% | 2513 fps | 99.7% |
| Norma 217 | <<locked>> | 80% | 26,818 psi | 42% | 2362 fps | 95.1% |
| Norma MRP | <<locked>> | 80% | 46,050 psi | 72% | 2779 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 41,437 psi | 65% | 2697 fps | 98.6% |
| Ramshot Magnum | <<locked>> | 80% | 37,362 psi | 59% | 2579 fps | 98.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 29,124 psi | 46% | 1663 fps | 100% |
| ReloadSwiss RS 76 | 60.1 gr | 80% | 34,766 psi | 54% | 2612 fps | 99.2% |
| ReloadSwiss RS 80 | 63.7 gr | 84% | 37,028 psi | 58% | 2635 fps | 96% |
| Rottweil R 904 | <<locked>> | 80% | 48,225 psi | 76% | 2730 fps | 99.3% |
| Rottweil R 905 | <<locked>> | 80% | 47,065 psi | 74% | 2743 fps | 99.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 46,731 psi | 73% | 2740 fps | 99.7% |
| Somchem S361 | <<locked>> | 80% | 49,066 psi | 77% | 2720 fps | 99% |
| Somchem S365 | <<locked>> | 80% | 53,055 psi | 83% | 2785 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 47,369 psi | 74% | 2717 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 41,466 psi | 65% | 2598 fps | 99.4% |
| Vihtavuori N170 | <<locked>> | 90% | 49,284 psi | 77% | 2772 fps | 95.8% |
| Vihtavuori N555 | <<locked>> | 80% | 46,847 psi | 73% | 2720 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 45,730 psi | 72% | 2776 fps | 98.7% |
| Vihtavuori N565 | <<locked>> | 80% | 38,058 psi | 60% | 2598 fps | 97% |
| Vihtavuori N568 | <<locked>> | 84% | 38,348 psi | 60% | 2651 fps | 95.8% |
| Vihtavuori N570 | <<locked>> | 90% | 44,976 psi | 70% | 2831 fps | 95.9% |
| Winchester StaBALL HD | <<locked>> | 80% | 40,393 psi | 63% | 2707 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 43,714 psi | 69% | 2651 fps | 99.4% |
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 53 powders for 6.5 x 68 loaded with the .264 | 150gr | Sierra MatchKing. ADI AR 2218 delivers the highest muzzle velocity at 3,041 fps; across all powders the maximum-charge window runs from 1,814 fps to 3,041 fps. ADI AR 2218 gives the best case fill at 100 %, and 53 of the 53 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 150.0 gr projectile in 0.264" calls for a 1:8.0 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. Hodgdon Retumbo, ReloadSwiss RS 76, ReloadSwiss RS 80 rank at the top here: for 6.5 x 68 with the .264 | 150gr | 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.