Load Specifications
Load data in caliber 6.5 x 68 with .264 | 155gr | Sierra HPBT LR MatchKing bullet and 53 powders. The key underlying parameters are shown in the table above.
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>> | 86% | 54,868 psi | 86% | 2772 fps | 100% |
| Accurate 8700ᴾ | <<locked>> | 100% | 45,484 psi | 71% | 2740 fps | 96.3% |
| Accurate High Country | <<locked>> | 84% | 56,782 psi | 89% | 2933 fps | 100% |
| Accurate MAGPRO | <<locked>> | 86% | 57,522 psi | 90% | 2940 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 84% | 56,043 psi | 88% | 2858 fps | 100% |
| ADI AR 2213 | <<locked>> | 86% | 54,549 psi | 85% | 2877 fps | 100% |
| ADI AR 2217 | <<locked>> | 96% | 56,971 psi | 89% | 2913 fps | 100% |
| ADI AR 2218ᴾ | <<locked>> | 100% | 57,348 psi | 90% | 3048 fps | 99.4% |
| ADI AR 2225 | <<locked>> | 98% | 56,057 psi | 88% | 2936 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 55,608 psi | 87% | 2848 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 86% | 55,085 psi | 86% | 2871 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 88% | 56,985 psi | 89% | 2828 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 92% | 57,246 psi | 90% | 2907 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 82% | 53,519 psi | 84% | 2861 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 96% | 54,984 psi | 86% | 2956 fps | 98.8% |
| Alliant Reloder-50ᴾ | <<locked>> | 100% | 54,520 psi | 85% | 2946 fps | 98.4% |
| Baschieri & Pellagri 109 | <<locked>> | 88% | 54,868 psi | 86% | 2841 fps | 98.9% |
| Bofors RP15 | <<locked>> | 88% | 54,578 psi | 86% | 2864 fps | 100% |
| Bofors RP30 | <<locked>> | 94% | 57,116 psi | 90% | 2930 fps | 100% |
| Bofors RP5 | <<locked>> | 86% | 55,085 psi | 86% | 2871 fps | 100% |
| Hodgdon H1000 | <<locked>> | 92% | 54,694 psi | 86% | 2877 fps | 100% |
| Hodgdon H4831 | <<locked>> | 86% | 57,319 psi | 90% | 2867 fps | 99.9% |
| Hodgdon H4831 SC | <<locked>> | 86% | 56,246 psi | 88% | 2851 fps | 99.9% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 56,391 psi | 88% | 2756 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 92% | 56,492 psi | 89% | 2999 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,971 psi | 60% | 1795 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 86% | 57,522 psi | 90% | 2841 fps | 99.9% |
| IMR 7828 SSC | <<locked>> | 88% | 56,811 psi | 89% | 2920 fps | 100% |
| IMR 7977 Enduron | <<locked>> | 92% | 55,883 psi | 88% | 2792 fps | 96.1% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 55,071 psi | 86% | 2920 fps | 100% |
| Lovex S071 | <<locked>> | 92% | 56,666 psi | 89% | 2799 fps | 100% |
| Norma 217ᴾ | <<locked>> | 100% | 56,159 psi | 88% | 2940 fps | 100% |
| Norma MRP | <<locked>> | 84% | 55,143 psi | 86% | 2887 fps | 100% |
| Ramshot Grand | <<locked>> | 86% | 54,027 psi | 85% | 2884 fps | 100% |
| Ramshot Magnum | <<locked>> | 90% | 56,550 psi | 89% | 2874 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,856 psi | 61% | 1834 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 57,290 psi | 90% | 2986 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 94% | 56,463 psi | 88% | 2963 fps | 99.9% |
| Rottweil R 904 | <<locked>> | 84% | 56,536 psi | 89% | 2828 fps | 100% |
| Rottweil R 905 | <<locked>> | 84% | 55,564 psi | 87% | 2841 fps | 100% |
| SNPE Vectan SP 13ᴾ | <<locked>> | 100% | 47,500 psi | 74% | 2753 fps | 96.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 55,187 psi | 86% | 2838 fps | 100% |
| Somchem S361 | <<locked>> | 82% | 54,201 psi | 85% | 2769 fps | 99.7% |
| Somchem S385 | <<locked>> | 84% | 55,854 psi | 88% | 2812 fps | 100% |
| Vihtavuori N165 | <<locked>> | 88% | 55,564 psi | 87% | 2795 fps | 100% |
| Vihtavuori N170 | <<locked>> | 92% | 54,752 psi | 86% | 2831 fps | 97.4% |
| Vihtavuori N555 | <<locked>> | 84% | 55,332 psi | 87% | 2808 fps | 100% |
| Vihtavuori N560 | <<locked>> | 84% | 54,534 psi | 85% | 2894 fps | 99.9% |
| Vihtavuori N565 | <<locked>> | 90% | 55,564 psi | 87% | 2890 fps | 100% |
| Vihtavuori N568 | <<locked>> | 94% | 56,971 psi | 89% | 2963 fps | 99.8% |
| Vihtavuori N570 | <<locked>> | 94% | 54,172 psi | 85% | 2959 fps | 98.5% |
| Winchester StaBALL HD | <<locked>> | 88% | 57,450 psi | 90% | 2923 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 86% | 55,390 psi | 87% | 2808 fps | 100% |
Start Load - Barrel Length: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 80% | 45,049 psi | 71% | 2621 fps | 100% |
| Accurate 8700 | <<locked>> | 98% | 42,279 psi | 66% | 2674 fps | 95.2% |
| Accurate High Country | <<locked>> | 80% | 49,356 psi | 77% | 2812 fps | 99.7% |
| Accurate MAGPRO | <<locked>> | 80% | 46,659 psi | 73% | 2756 fps | 98.7% |
| ADI AR 2209 | <<locked>> | 80% | 49,095 psi | 77% | 2746 fps | 99.9% |
| ADI AR 2213 | <<locked>> | 80% | 44,295 psi | 69% | 2700 fps | 99.1% |
| ADI AR 2217 | <<locked>> | 80% | 33,098 psi | 52% | 2451 fps | 96.4% |
| ADI AR 2218 | <<locked>> | 92% | 42,902 psi | 67% | 2769 fps | 96.1% |
| ADI AR 2225 | <<locked>> | 80% | 30,400 psi | 48% | 2425 fps | 98.3% |
| Alliant Reloder-19 | <<locked>> | 80% | 48,936 psi | 77% | 2740 fps | 99.9% |
| Alliant Reloder-22 | <<locked>> | 80% | 45,063 psi | 71% | 2700 fps | 99.7% |
| Alliant Reloder-23 | <<locked>> | 80% | 43,947 psi | 69% | 2631 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 38,087 psi | 60% | 2585 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 80% | 49,763 psi | 78% | 2805 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 88% | 40,901 psi | 64% | 2694 fps | 95.5% |
| Alliant Reloder-50 | <<locked>> | 94% | 43,816 psi | 69% | 2749 fps | 95.9% |
| Baschieri & Pellagri 109 | <<locked>> | 80% | 42,569 psi | 67% | 2615 fps | 96.2% |
| Bofors RP15 | <<locked>> | 80% | 42,032 psi | 66% | 2641 fps | 99.3% |
| Bofors RP30 | <<locked>> | 80% | 35,578 psi | 56% | 2526 fps | 97.4% |
| Bofors RP5 | <<locked>> | 80% | 45,063 psi | 71% | 2700 fps | 99.7% |
| Hodgdon H1000 | <<locked>> | 80% | 35,868 psi | 56% | 2523 fps | 98% |
| Hodgdon H4831 | <<locked>> | 80% | 46,862 psi | 73% | 2697 fps | 99% |
| Hodgdon H4831 SC | <<locked>> | 80% | 45,963 psi | 72% | 2677 fps | 98.9% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 53,069 psi | 83% | 2710 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 80% | 37,217 psi | 58% | 2638 fps | 99.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,456 psi | 45% | 1601 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 47,674 psi | 75% | 2680 fps | 99.2% |
| IMR 7828 SSC | <<locked>> | 80% | 43,033 psi | 67% | 2680 fps | 98.9% |
| IMR 7977 Enduron | <<locked>> | 90% | 52,417 psi | 82% | 2733 fps | 95.3% |
| IMR 8133 Enduron | <<locked>> | 84% | 31,995 psi | 50% | 2461 fps | 95.9% |
| Lovex S071 | <<locked>> | 80% | 38,841 psi | 61% | 2503 fps | 99.9% |
| Norma 217 | <<locked>> | 80% | 28,108 psi | 44% | 2369 fps | 96.4% |
| Norma MRP | <<locked>> | 80% | 47,819 psi | 75% | 2769 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 43,468 psi | 68% | 2700 fps | 99.2% |
| Ramshot Magnum | <<locked>> | 80% | 38,972 psi | 61% | 2575 fps | 99.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 29,298 psi | 46% | 1644 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 80% | 36,477 psi | 57% | 2615 fps | 99.7% |
| ReloadSwiss RS 80 | <<locked>> | 82% | 35,969 psi | 56% | 2572 fps | 96% |
| Rottweil R 904 | <<locked>> | 80% | 49,763 psi | 78% | 2720 fps | 99.7% |
| Rottweil R 905 | <<locked>> | 80% | 48,733 psi | 76% | 2733 fps | 100% |
| SNPE Vectan SP 13 | <<locked>> | 98% | 44,469 psi | 70% | 2694 fps | 95.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 48,385 psi | 76% | 2730 fps | 99.9% |
| Somchem S361 | <<locked>> | 80% | 50,734 psi | 80% | 2713 fps | 99.4% |
| Somchem S385 | <<locked>> | 80% | 48,950 psi | 77% | 2703 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 42,902 psi | 67% | 2589 fps | 99.7% |
| Vihtavuori N170 | <<locked>> | 86% | 44,831 psi | 70% | 2654 fps | 95% |
| Vihtavuori N555 | <<locked>> | 80% | 48,588 psi | 76% | 2703 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 47,413 psi | 74% | 2769 fps | 99.2% |
| Vihtavuori N565 | <<locked>> | 80% | 39,581 psi | 62% | 2595 fps | 97.9% |
| Vihtavuori N568 | <<locked>> | 82% | 37,202 psi | 58% | 2589 fps | 95.8% |
| Vihtavuori N570 | <<locked>> | 86% | 40,930 psi | 64% | 2707 fps | 95.1% |
| Winchester StaBALL HD | <<locked>> | 80% | 42,453 psi | 67% | 2700 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 45,223 psi | 71% | 2641 fps | 99.7% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 59 powders for 6.5 x 68 loaded with the .264 | 155gr | Sierra HPBT LR MatchKing. ADI AR 2218 delivers the highest muzzle velocity at 3,048 fps; across all powders the maximum-charge window runs from 1,795 fps to 3,048 fps. Accurate 8700 gives the best case fill at 100 %, and 59 of the 59 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 60–90 %, leaving at least 10 % headroom. The 155.0 gr projectile in 0.264" calls for a 1:8.5 twist; slower twists will usually not stabilise this weight. Accurate 8700, ADI AR 2218, 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. As outliers, Hodgdon US 869, Vihtavuori 20N29, Vihtavuori 24N41 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.