Load Specifications
Load data in caliber 6.5 x 68 with .264 | 140gr | 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% | 55,317 psi | 87% | 2917 fps | 100% |
| Accurate High Country | <<locked>> | 86% | 57,232 psi | 90% | 3081 fps | 99.9% |
| Accurate MAGPRO | <<locked>> | 86% | 54,230 psi | 85% | 3025 fps | 99.2% |
| ADI AR 2209 | <<locked>> | 86% | 56,550 psi | 89% | 3005 fps | 100% |
| ADI AR 2213 | <<locked>> | 88% | 54,940 psi | 86% | 3018 fps | 99.7% |
| ADI AR 2217 | <<locked>> | 98% | 57,435 psi | 90% | 3058 fps | 100% |
| ADI AR 2218ᴾ | <<locked>> | 100% | 53,722 psi | 84% | 3107 fps | 98% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 55,695 psi | 87% | 3074 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 82% | 57,029 psi | 89% | 2992 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 56,304 psi | 88% | 2995 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 88% | 55,405 psi | 87% | 3015 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 90% | 57,305 psi | 90% | 2976 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 94% | 57,406 psi | 90% | 3051 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 84% | 53,925 psi | 85% | 3009 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 98% | 55,071 psi | 86% | 3087 fps | 98.1% |
| Alliant Reloder-50ᴾ | <<locked>> | 100% | 50,430 psi | 79% | 2999 fps | 96.6% |
| Baschieri & Pellagri 109 | <<locked>> | 90% | 55,651 psi | 87% | 2982 fps | 98.2% |
| Bofors RP15 | <<locked>> | 90% | 54,897 psi | 86% | 3005 fps | 100% |
| Bofors RP30 | <<locked>> | 96% | 57,130 psi | 90% | 3068 fps | 100% |
| Bofors RP5 | <<locked>> | 88% | 55,405 psi | 87% | 3015 fps | 100% |
| Hodgdon H1000 | <<locked>> | 94% | 54,926 psi | 86% | 3018 fps | 100% |
| Hodgdon H4831 | <<locked>> | 86% | 54,360 psi | 85% | 2953 fps | 99.4% |
| Hodgdon H4831 SC | <<locked>> | 88% | 56,884 psi | 89% | 2995 fps | 99.6% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 57,116 psi | 90% | 2907 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 94% | 56,333 psi | 88% | 3140 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,594 psi | 59% | 1886 fps | 100% |
| IMR 4350 | <<locked>> | 82% | 55,463 psi | 87% | 2923 fps | 100% |
| IMR 4831 | <<locked>> | 82% | 56,043 psi | 88% | 2923 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 86% | 54,665 psi | 86% | 2930 fps | 99.5% |
| IMR 7828 SSC | <<locked>> | 90% | 57,072 psi | 89% | 3061 fps | 99.9% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 51,227 psi | 80% | 2992 fps | 99.6% |
| Lovex S070 | <<locked>> | 82% | 57,711 psi | 90% | 2953 fps | 100% |
| Lovex S071 | <<locked>> | 94% | 57,145 psi | 90% | 2943 fps | 100% |
| Norma 204 | <<locked>> | 82% | 56,521 psi | 89% | 2982 fps | 100% |
| Norma 217ᴾ | <<locked>> | 100% | 52,257 psi | 82% | 3018 fps | 100% |
| Norma MRP | <<locked>> | 86% | 55,521 psi | 87% | 3035 fps | 100% |
| Norma URP | <<locked>> | 82% | 57,711 psi | 90% | 2969 fps | 100% |
| Ramshot Grand | <<locked>> | 88% | 54,273 psi | 85% | 3025 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 82% | 56,507 psi | 89% | 2979 fps | 100% |
| Ramshot Magnum | <<locked>> | 92% | 56,884 psi | 89% | 3012 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,609 psi | 61% | 1929 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 57,232 psi | 90% | 3130 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 96% | 56,376 psi | 88% | 3094 fps | 99.6% |
| Rottweil R 904 | <<locked>> | 86% | 57,246 psi | 90% | 2972 fps | 99.8% |
| Rottweil R 905 | <<locked>> | 86% | 55,985 psi | 88% | 2986 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 57,711 psi | 90% | 2953 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 55,593 psi | 87% | 2982 fps | 100% |
| Somchem S361 | <<locked>> | 84% | 55,042 psi | 86% | 2910 fps | 99.4% |
| Somchem S365 | <<locked>> | 82% | 55,390 psi | 87% | 2917 fps | 100% |
| Somchem S385 | <<locked>> | 86% | 56,478 psi | 89% | 2956 fps | 100% |
| Vihtavuori N165 | <<locked>> | 90% | 56,318 psi | 88% | 2943 fps | 100% |
| Vihtavuori N170 | <<locked>> | 94% | 55,230 psi | 87% | 2963 fps | 96.5% |
| Vihtavuori N555 | <<locked>> | 86% | 55,608 psi | 87% | 2953 fps | 100% |
| Vihtavuori N560 | <<locked>> | 86% | 55,042 psi | 86% | 3035 fps | 99.6% |
| Vihtavuori N565 | <<locked>> | 92% | 55,738 psi | 87% | 3025 fps | 99.7% |
| Vihtavuori N568 | <<locked>> | 96% | 57,203 psi | 90% | 3100 fps | 99.4% |
| Vihtavuori N570 | <<locked>> | 96% | 54,302 psi | 85% | 3094 fps | 97.6% |
| Winchester StaBALL HD | <<locked>> | 90% | 57,145 psi | 90% | 3071 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 88% | 56,202 psi | 88% | 2953 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% | 42,467 psi | 67% | 2700 fps | 99.9% |
| Accurate High Country | <<locked>> | 80% | 46,470 psi | 73% | 2890 fps | 98.8% |
| Accurate MAGPRO | <<locked>> | 80% | 43,859 psi | 69% | 2828 fps | 97.2% |
| ADI AR 2209 | <<locked>> | 80% | 46,514 psi | 73% | 2831 fps | 99.4% |
| ADI AR 2213 | <<locked>> | 80% | 41,698 psi | 65% | 2769 fps | 97.7% |
| ADI AR 2217 | <<locked>> | 82% | 33,301 psi | 52% | 2562 fps | 95% |
| ADI AR 2218 | <<locked>> | 96% | 46,340 psi | 73% | 2956 fps | 95.9% |
| ADI AR 2225 | <<locked>> | 80% | 28,485 psi | 45% | 2470 fps | 95.9% |
| Alliant Reloder-16 | <<locked>> | 80% | 53,417 psi | 84% | 2936 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 46,398 psi | 73% | 2822 fps | 99.4% |
| Alliant Reloder-22 | <<locked>> | 80% | 42,409 psi | 66% | 2776 fps | 98.9% |
| Alliant Reloder-23 | <<locked>> | 80% | 41,133 psi | 64% | 2713 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 35,636 psi | 56% | 2654 fps | 99.7% |
| Alliant Reloder-26 | <<locked>> | 80% | 46,441 psi | 73% | 2887 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 92% | 43,947 psi | 69% | 2877 fps | 95.3% |
| Alliant Reloder-50 | <<locked>> | 98% | 46,905 psi | 74% | 2933 fps | 95.6% |
| Baschieri & Pellagri 109 | <<locked>> | 82% | 43,134 psi | 68% | 2740 fps | 95.2% |
| Bofors RP15 | <<locked>> | 80% | 39,378 psi | 62% | 2710 fps | 98.1% |
| Bofors RP30 | <<locked>> | 80% | 33,156 psi | 52% | 2582 fps | 95.3% |
| Bofors RP5 | <<locked>> | 80% | 42,409 psi | 66% | 2776 fps | 98.9% |
| Hodgdon H1000 | <<locked>> | 80% | 33,678 psi | 53% | 2579 fps | 96% |
| Hodgdon H4831 | <<locked>> | 80% | 44,324 psi | 69% | 2769 fps | 97.7% |
| Hodgdon H4831 SC | <<locked>> | 80% | 43,497 psi | 68% | 2753 fps | 97.5% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 50,183 psi | 79% | 2808 fps | 100% |
| Hodgdon Retumbo | 57.9 gr | 80% | 34,751 psi | 54% | 2690 fps | 97.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,297 psi | 44% | 1686 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 52,141 psi | 82% | 2871 fps | 100% |
| IMR 4831 | <<locked>> | 80% | 52,605 psi | 82% | 2871 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 45,440 psi | 71% | 2762 fps | 98.1% |
| IMR 7828 SSC | <<locked>> | 80% | 40,379 psi | 63% | 2749 fps | 97.4% |
| IMR 8133 Enduron | <<locked>> | 88% | 33,953 psi | 53% | 2625 fps | 95.4% |
| Lovex S070 | <<locked>> | 80% | 54,070 psi | 85% | 2897 fps | 100% |
| Lovex S071 | <<locked>> | 80% | 36,521 psi | 57% | 2572 fps | 99.3% |
| Norma 204 | <<locked>> | 80% | 52,808 psi | 83% | 2923 fps | 99.9% |
| Norma 217 | <<locked>> | 84% | 29,863 psi | 47% | 2530 fps | 96% |
| Norma MRP | <<locked>> | 80% | 45,005 psi | 71% | 2851 fps | 99.8% |
| Norma URP | <<locked>> | 80% | 53,925 psi | 85% | 2910 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 40,437 psi | 63% | 2762 fps | 97.8% |
| Ramshot Hunter | <<locked>> | 80% | 52,881 psi | 83% | 2920 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 36,347 psi | 57% | 2638 fps | 98.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 29,080 psi | 46% | 1729 fps | 100% |
| ReloadSwiss RS 76 | 61.9 gr | 80% | 33,823 psi | 53% | 2661 fps | 98.4% |
| ReloadSwiss RS 80 | <<locked>> | 86% | 38,638 psi | 61% | 2749 fps | 95.8% |
| Rottweil R 904 | <<locked>> | 80% | 47,369 psi | 74% | 2805 fps | 98.9% |
| Rottweil R 905 | <<locked>> | 80% | 45,876 psi | 72% | 2812 fps | 99.4% |
| Shooters World SW4350 | <<locked>> | 80% | 54,070 psi | 85% | 2897 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 45,527 psi | 71% | 2805 fps | 99.3% |
| Somchem S361 | <<locked>> | 80% | 48,138 psi | 75% | 2792 fps | 98.5% |
| Somchem S365 | <<locked>> | 80% | 51,909 psi | 81% | 2867 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 46,383 psi | 73% | 2789 fps | 99.8% |
| Vihtavuori N165 | <<locked>> | 80% | 40,553 psi | 64% | 2664 fps | 98.9% |
| Vihtavuori N170 | <<locked>> | 92% | 51,648 psi | 81% | 2900 fps | 95.7% |
| Vihtavuori N555 | <<locked>> | 80% | 45,629 psi | 72% | 2792 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 44,730 psi | 70% | 2844 fps | 98% |
| Vihtavuori N565 | <<locked>> | 80% | 37,057 psi | 58% | 2654 fps | 96% |
| Vihtavuori N568 | <<locked>> | 86% | 39,958 psi | 63% | 2769 fps | 95.6% |
| Vihtavuori N570 | 69.1 gr | 92% | 47,036 psi | 74% | 2956 fps | 95.8% |
| Winchester StaBALL HD | <<locked>> | 80% | 38,986 psi | 61% | 2769 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 42,699 psi | 67% | 2717 fps | 98.8% |
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 | 140gr | Sierra MatchKing. Hodgdon Retumbo delivers the highest muzzle velocity at 3,140 fps; across all powders the maximum-charge window runs from 1,886 fps to 3,140 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 140.0 gr projectile in 0.264" calls for a 1:9.5 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 | 140gr | 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.