Load Specifications
Load data in caliber 6.5 x 68 with .264 | 142gr | Sierra MatchKing bullet and 59 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% | 55,143 psi | 86% | 2894 fps | 100% |
| Accurate High Country | <<locked>> | 86% | 56,811 psi | 89% | 3054 fps | 99.9% |
| Accurate MAGPRO | <<locked>> | 86% | 53,853 psi | 84% | 2999 fps | 99.2% |
| ADI AR 2209 | <<locked>> | 86% | 56,318 psi | 88% | 2979 fps | 100% |
| ADI AR 2213 | <<locked>> | 88% | 54,752 psi | 86% | 2995 fps | 99.8% |
| ADI AR 2217 | <<locked>> | 98% | 56,884 psi | 89% | 3028 fps | 100% |
| ADI AR 2218ᴾ | <<locked>> | 100% | 53,156 psi | 83% | 3077 fps | 97.9% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 55,463 psi | 87% | 3051 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 82% | 56,652 psi | 89% | 2963 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 56,057 psi | 88% | 2969 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 88% | 55,216 psi | 87% | 2992 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 90% | 56,840 psi | 89% | 2949 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 94% | 57,029 psi | 89% | 3025 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 86% | 57,522 psi | 90% | 3041 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 98% | 54,723 psi | 86% | 3064 fps | 98.1% |
| Alliant Reloder-50ᴾ | <<locked>> | 100% | 50,125 psi | 79% | 2976 fps | 96.6% |
| Baschieri & Pellagri 109 | <<locked>> | 90% | 55,390 psi | 87% | 2956 fps | 98.3% |
| Bofors RP15 | <<locked>> | 90% | 54,433 psi | 85% | 2979 fps | 100% |
| Bofors RP30 | <<locked>> | 96% | 56,840 psi | 89% | 3045 fps | 100% |
| Bofors RP5 | <<locked>> | 88% | 55,216 psi | 87% | 2992 fps | 100% |
| Hodgdon H1000 | <<locked>> | 94% | 54,607 psi | 86% | 2992 fps | 100% |
| Hodgdon H4831 | <<locked>> | 86% | 53,911 psi | 84% | 2927 fps | 99.4% |
| Hodgdon H4831 SC | <<locked>> | 88% | 56,710 psi | 89% | 2972 fps | 99.6% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 56,797 psi | 89% | 2881 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 94% | 55,970 psi | 88% | 3114 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,695 psi | 59% | 1870 fps | 100% |
| IMR 4350 | <<locked>> | 82% | 55,172 psi | 86% | 2897 fps | 100% |
| IMR 4831 | <<locked>> | 82% | 55,956 psi | 88% | 2900 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 86% | 54,462 psi | 85% | 2904 fps | 99.5% |
| IMR 7828 SSC | <<locked>> | 90% | 56,898 psi | 89% | 3038 fps | 99.9% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 50,923 psi | 80% | 2969 fps | 99.7% |
| Lovex S070 | <<locked>> | 82% | 57,392 psi | 90% | 2927 fps | 100% |
| Lovex S071 | <<locked>> | 94% | 56,695 psi | 89% | 2917 fps | 100% |
| Norma 204 | <<locked>> | 82% | 56,260 psi | 88% | 2956 fps | 100% |
| Norma 217ᴾ | <<locked>> | 100% | 51,735 psi | 81% | 2992 fps | 100% |
| Norma MRP | <<locked>> | 86% | 55,100 psi | 86% | 3005 fps | 100% |
| Norma URP | <<locked>> | 82% | 57,392 psi | 90% | 2940 fps | 100% |
| Ramshot Grand | <<locked>> | 88% | 54,114 psi | 85% | 2999 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 82% | 56,231 psi | 88% | 2953 fps | 100% |
| Ramshot Magnum | <<locked>> | 92% | 56,318 psi | 88% | 2986 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,740 psi | 61% | 1913 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 56,710 psi | 89% | 3104 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 96% | 55,970 psi | 88% | 3068 fps | 99.5% |
| Rottweil R 904 | <<locked>> | 86% | 57,000 psi | 89% | 2949 fps | 99.8% |
| Rottweil R 905 | <<locked>> | 86% | 55,738 psi | 87% | 2959 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 57,392 psi | 90% | 2927 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 55,347 psi | 87% | 2956 fps | 100% |
| Somchem S361 | <<locked>> | 84% | 54,650 psi | 86% | 2884 fps | 99.4% |
| Somchem S365 | <<locked>> | 82% | 55,071 psi | 86% | 2894 fps | 100% |
| Somchem S385 | <<locked>> | 86% | 56,014 psi | 88% | 2927 fps | 100% |
| Vihtavuori N165 | <<locked>> | 90% | 55,898 psi | 88% | 2913 fps | 100% |
| Vihtavuori N170 | <<locked>> | 94% | 54,766 psi | 86% | 2936 fps | 96.5% |
| Vihtavuori N555 | <<locked>> | 86% | 55,317 psi | 87% | 2927 fps | 100% |
| Vihtavuori N560 | <<locked>> | 86% | 54,621 psi | 86% | 3009 fps | 99.6% |
| Vihtavuori N565 | <<locked>> | 92% | 55,419 psi | 87% | 2999 fps | 99.7% |
| Vihtavuori N568 | <<locked>> | 96% | 56,724 psi | 89% | 3071 fps | 99.3% |
| Vihtavuori N570 | <<locked>> | 96% | 53,795 psi | 84% | 3068 fps | 97.6% |
| Winchester StaBALL HD | <<locked>> | 90% | 56,695 psi | 89% | 3041 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 88% | 55,840 psi | 88% | 2927 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% | 42,148 psi | 66% | 2674 fps | 99.9% |
| Accurate High Country | <<locked>> | 80% | 46,209 psi | 72% | 2864 fps | 98.8% |
| Accurate MAGPRO | <<locked>> | 80% | 43,656 psi | 68% | 2805 fps | 97.2% |
| ADI AR 2209 | <<locked>> | 80% | 46,180 psi | 72% | 2805 fps | 99.4% |
| ADI AR 2213 | <<locked>> | 80% | 41,379 psi | 65% | 2743 fps | 97.7% |
| ADI AR 2217 | <<locked>> | 82% | 33,083 psi | 52% | 2543 fps | 95% |
| ADI AR 2218 | <<locked>> | 96% | 46,021 psi | 72% | 2930 fps | 95.9% |
| ADI AR 2225 | <<locked>> | 80% | 28,282 psi | 44% | 2448 fps | 96% |
| Alliant Reloder-16 | <<locked>> | 80% | 53,040 psi | 83% | 2910 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 46,093 psi | 72% | 2799 fps | 99.4% |
| Alliant Reloder-22 | <<locked>> | 80% | 42,090 psi | 66% | 2753 fps | 98.9% |
| Alliant Reloder-23 | <<locked>> | 80% | 41,002 psi | 64% | 2694 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 35,360 psi | 55% | 2631 fps | 99.7% |
| Alliant Reloder-26 | <<locked>> | 80% | 46,209 psi | 72% | 2861 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 92% | 43,729 psi | 69% | 2858 fps | 95.3% |
| Alliant Reloder-50 | <<locked>> | 98% | 46,354 psi | 73% | 2904 fps | 95.6% |
| Baschieri & Pellagri 109 | <<locked>> | 82% | 43,004 psi | 67% | 2720 fps | 95.2% |
| Bofors RP15 | <<locked>> | 80% | 39,276 psi | 62% | 2687 fps | 98.1% |
| Bofors RP30 | <<locked>> | 80% | 32,880 psi | 52% | 2559 fps | 95.2% |
| Bofors RP5 | <<locked>> | 80% | 42,090 psi | 66% | 2753 fps | 98.9% |
| Hodgdon H1000 | <<locked>> | 80% | 33,605 psi | 53% | 2559 fps | 96% |
| Hodgdon H4831 | <<locked>> | 80% | 44,063 psi | 69% | 2746 fps | 97.7% |
| Hodgdon H4831 SC | <<locked>> | 80% | 43,221 psi | 68% | 2730 fps | 97.5% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 50,038 psi | 78% | 2785 fps | 100% |
| Hodgdon Retumbo | 57 gr | 80% | 34,490 psi | 54% | 2667 fps | 97.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,253 psi | 44% | 1670 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 51,822 psi | 81% | 2844 fps | 100% |
| IMR 4831 | <<locked>> | 80% | 52,518 psi | 82% | 2848 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 45,165 psi | 71% | 2736 fps | 98.1% |
| IMR 7828 SSC | <<locked>> | 80% | 40,263 psi | 63% | 2730 fps | 97.5% |
| IMR 8133 Enduron | <<locked>> | 88% | 33,765 psi | 53% | 2605 fps | 95.5% |
| Lovex S070 | <<locked>> | 80% | 53,925 psi | 85% | 2871 fps | 100% |
| Lovex S071 | <<locked>> | 80% | 36,361 psi | 57% | 2549 fps | 99.3% |
| Norma 204 | <<locked>> | 80% | 52,765 psi | 83% | 2900 fps | 99.9% |
| Norma 217 | <<locked>> | 84% | 29,791 psi | 47% | 2513 fps | 96.1% |
| Norma MRP | <<locked>> | 80% | 44,730 psi | 70% | 2825 fps | 99.8% |
| Norma URP | <<locked>> | 80% | 53,809 psi | 84% | 2890 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 40,161 psi | 63% | 2740 fps | 97.8% |
| Ramshot Hunter | <<locked>> | 80% | 52,837 psi | 83% | 2900 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 36,129 psi | 57% | 2618 fps | 98.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 29,066 psi | 46% | 1713 fps | 100% |
| ReloadSwiss RS 76 | 61 gr | 80% | 33,649 psi | 53% | 2641 fps | 98.4% |
| ReloadSwiss RS 80 | <<locked>> | 86% | 38,319 psi | 60% | 2726 fps | 95.8% |
| Rottweil R 904 | <<locked>> | 80% | 47,050 psi | 74% | 2779 fps | 98.9% |
| Rottweil R 905 | <<locked>> | 80% | 45,759 psi | 72% | 2789 fps | 99.4% |
| Shooters World SW4350 | <<locked>> | 80% | 53,925 psi | 85% | 2871 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 45,411 psi | 71% | 2782 fps | 99.4% |
| Somchem S361 | <<locked>> | 80% | 47,935 psi | 75% | 2769 fps | 98.5% |
| Somchem S365 | <<locked>> | 80% | 51,532 psi | 81% | 2841 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 46,079 psi | 72% | 2762 fps | 99.8% |
| Vihtavuori N165 | <<locked>> | 80% | 40,248 psi | 63% | 2638 fps | 98.8% |
| Vihtavuori N170 | <<locked>> | 92% | 51,430 psi | 81% | 2877 fps | 95.7% |
| Vihtavuori N555 | <<locked>> | 80% | 45,484 psi | 71% | 2769 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 44,454 psi | 70% | 2822 fps | 98% |
| Vihtavuori N565 | <<locked>> | 80% | 36,956 psi | 58% | 2638 fps | 96.1% |
| Vihtavuori N568 | <<locked>> | 86% | 39,798 psi | 62% | 2749 fps | 95.7% |
| Vihtavuori N570 | 68.1 gr | 92% | 46,760 psi | 73% | 2933 fps | 95.8% |
| Winchester StaBALL HD | <<locked>> | 80% | 38,870 psi | 61% | 2753 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 42,424 psi | 66% | 2694 fps | 98.9% |
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 59 powders for 6.5 x 68 loaded with the .264 | 142gr | Sierra MatchKing. Hodgdon Retumbo delivers the highest muzzle velocity at 3,114 fps; across all powders the maximum-charge window runs from 1,870 fps to 3,114 fps. ADI AR 2218 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 59–90 %, leaving at least 10 % headroom. The 142.0 gr projectile in 0.264" calls for a 1:8.5 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 | 142gr | 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.