Load Specifications
Load data in caliber 6.5 x 63 Messner Mag. with .264 | 140gr | Speer Deep Curl Soft Point bullet and 62 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon Retumbo, Vihtavuori N570 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% | 54,868 psi | 86% | 2910 fps | 100% |
| Accurate High Country | <<locked>> | 86% | 56,463 psi | 88% | 3068 fps | 99.8% |
| Accurate MAGPRO | <<locked>> | 88% | 57,609 psi | 90% | 3077 fps | 99.5% |
| ADI AR 2209 | <<locked>> | 86% | 56,115 psi | 88% | 2995 fps | 100% |
| ADI AR 2213 | <<locked>> | 88% | 54,491 psi | 85% | 3012 fps | 99.7% |
| ADI AR 2217 | <<locked>> | 98% | 56,681 psi | 89% | 3045 fps | 100% |
| ADI AR 2218ᴾ | <<locked>> | 100% | 53,069 psi | 83% | 3094 fps | 97.7% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 55,201 psi | 87% | 3068 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 86% | 56,463 psi | 88% | 2995 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 86% | 56,463 psi | 88% | 2995 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 82% | 56,536 psi | 89% | 2982 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 55,854 psi | 88% | 2989 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 88% | 54,955 psi | 86% | 3009 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 90% | 56,550 psi | 89% | 2966 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 94% | 56,623 psi | 89% | 3041 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 86% | 57,392 psi | 90% | 3061 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 98% | 54,331 psi | 85% | 3074 fps | 97.9% |
| Alliant Reloder-50ᴾ | <<locked>> | 100% | 49,719 psi | 78% | 2989 fps | 96.3% |
| Baschieri & Pellagri 109 | <<locked>> | 90% | 55,056 psi | 86% | 2969 fps | 98.1% |
| Bofors RP15 | <<locked>> | 90% | 54,186 psi | 85% | 2995 fps | 100% |
| Bofors RP30 | <<locked>> | 96% | 56,405 psi | 88% | 3058 fps | 99.9% |
| Bofors RP5 | <<locked>> | 88% | 54,955 psi | 86% | 3009 fps | 100% |
| Hodgdon H1000 | <<locked>> | 94% | 54,491 psi | 85% | 3009 fps | 100% |
| Hodgdon H4831 | <<locked>> | 88% | 57,493 psi | 90% | 3005 fps | 99.6% |
| Hodgdon H4831 SC | <<locked>> | 88% | 56,478 psi | 89% | 2989 fps | 99.5% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 56,623 psi | 89% | 2904 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 94% | 55,796 psi | 87% | 3133 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,608 psi | 59% | 1883 fps | 100% |
| IMR 4350 | <<locked>> | 82% | 55,027 psi | 86% | 2917 fps | 100% |
| IMR 4831 | <<locked>> | 82% | 55,564 psi | 87% | 2917 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 86% | 54,288 psi | 85% | 2923 fps | 99.4% |
| IMR 7828 SSC | <<locked>> | 90% | 56,579 psi | 89% | 3054 fps | 99.8% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 50,473 psi | 79% | 2982 fps | 99.5% |
| Lovex S070 | <<locked>> | 82% | 57,276 psi | 90% | 2946 fps | 100% |
| Lovex S071 | <<locked>> | 94% | 56,420 psi | 88% | 2933 fps | 100% |
| Norma 204 | <<locked>> | 82% | 56,086 psi | 88% | 2976 fps | 100% |
| Norma 217ᴾ | <<locked>> | 100% | 51,459 psi | 81% | 3005 fps | 100% |
| Norma MRP | <<locked>> | 86% | 54,824 psi | 86% | 3022 fps | 100% |
| Norma URP | <<locked>> | 82% | 57,232 psi | 90% | 2963 fps | 100% |
| Ramshot Grand | <<locked>> | 88% | 53,766 psi | 84% | 3015 fps | 99.8% |
| Ramshot Hunter | <<locked>> | 82% | 56,057 psi | 88% | 2969 fps | 100% |
| Ramshot Magnum | <<locked>> | 92% | 56,159 psi | 88% | 3002 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,638 psi | 61% | 1929 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 56,391 psi | 88% | 3120 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 96% | 55,912 psi | 88% | 3087 fps | 99.5% |
| Rottweil R 904 | <<locked>> | 86% | 56,826 psi | 89% | 2966 fps | 99.8% |
| Rottweil R 905 | <<locked>> | 86% | 55,506 psi | 87% | 2979 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 57,276 psi | 90% | 2946 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 57,595 psi | 90% | 2894 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 55,143 psi | 86% | 2976 fps | 100% |
| Somchem S361 | <<locked>> | 84% | 54,650 psi | 86% | 2900 fps | 99.3% |
| Somchem S365 | <<locked>> | 82% | 54,897 psi | 86% | 2910 fps | 100% |
| Somchem S385 | <<locked>> | 86% | 55,767 psi | 87% | 2946 fps | 100% |
| Vihtavuori N165 | <<locked>> | 90% | 55,637 psi | 87% | 2930 fps | 100% |
| Vihtavuori N170 | <<locked>> | 94% | 54,621 psi | 86% | 2949 fps | 96.3% |
| Vihtavuori N555 | <<locked>> | 86% | 55,100 psi | 86% | 2946 fps | 100% |
| Vihtavuori N560 | <<locked>> | 86% | 54,331 psi | 85% | 3022 fps | 99.5% |
| Vihtavuori N565 | <<locked>> | 92% | 55,259 psi | 87% | 3018 fps | 99.6% |
| Vihtavuori N568 | <<locked>> | 96% | 56,449 psi | 88% | 3087 fps | 99.2% |
| Vihtavuori N570 | <<locked>> | 98% | 57,537 psi | 90% | 3150 fps | 98.1% |
| Winchester StaBALL HD | <<locked>> | 90% | 56,289 psi | 88% | 3058 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 88% | 55,521 psi | 87% | 2943 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% | 42,032 psi | 66% | 2690 fps | 99.9% |
| Accurate High Country | <<locked>> | 80% | 46,006 psi | 72% | 2881 fps | 98.7% |
| Accurate MAGPRO | <<locked>> | 80% | 43,439 psi | 68% | 2818 fps | 97% |
| ADI AR 2209 | <<locked>> | 80% | 46,079 psi | 72% | 2822 fps | 99.3% |
| ADI AR 2213 | <<locked>> | 80% | 41,292 psi | 65% | 2759 fps | 97.5% |
| ADI AR 2217 | <<locked>> | 84% | 35,230 psi | 55% | 2615 fps | 95.8% |
| ADI AR 2218 | <<locked>> | 96% | 45,788 psi | 72% | 2943 fps | 95.5% |
| ADI AR 2225 | <<locked>> | 80% | 28,195 psi | 44% | 2457 fps | 95.6% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 46,412 psi | 73% | 2822 fps | 99.3% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 46,412 psi | 73% | 2822 fps | 99.3% |
| Alliant Reloder-16 | <<locked>> | 80% | 52,953 psi | 83% | 2930 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 45,992 psi | 72% | 2815 fps | 99.3% |
| Alliant Reloder-22 | <<locked>> | 80% | 41,989 psi | 66% | 2769 fps | 98.7% |
| Alliant Reloder-23 | <<locked>> | 80% | 40,683 psi | 64% | 2707 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 35,259 psi | 55% | 2644 fps | 99.6% |
| Alliant Reloder-26 | <<locked>> | 80% | 45,963 psi | 72% | 2881 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 92% | 43,526 psi | 68% | 2867 fps | 95% |
| Alliant Reloder-50 | <<locked>> | 98% | 46,209 psi | 72% | 2920 fps | 95.3% |
| Baschieri & Pellagri 109 | <<locked>> | 82% | 42,844 psi | 67% | 2733 fps | 95% |
| Bofors RP15 | <<locked>> | 80% | 39,175 psi | 61% | 2703 fps | 98% |
| Bofors RP30 | <<locked>> | 80% | 32,750 psi | 51% | 2572 fps | 95% |
| Bofors RP5 | <<locked>> | 80% | 41,989 psi | 66% | 2769 fps | 98.7% |
| Hodgdon H1000 | <<locked>> | 80% | 33,373 psi | 52% | 2569 fps | 95.7% |
| Hodgdon H4831 | <<locked>> | 80% | 43,918 psi | 69% | 2762 fps | 97.6% |
| Hodgdon H4831 SC | <<locked>> | 80% | 43,091 psi | 68% | 2743 fps | 97.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 49,748 psi | 78% | 2802 fps | 100% |
| Hodgdon Retumbo | 57.6 gr | 80% | 34,403 psi | 54% | 2680 fps | 97.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,268 psi | 44% | 1686 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 51,721 psi | 81% | 2864 fps | 100% |
| IMR 4831 | <<locked>> | 80% | 52,141 psi | 82% | 2864 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 45,063 psi | 71% | 2753 fps | 98% |
| IMR 7828 SSC | <<locked>> | 80% | 39,958 psi | 63% | 2740 fps | 97.2% |
| IMR 8133 Enduron | <<locked>> | 88% | 33,591 psi | 53% | 2615 fps | 95.2% |
| Lovex S070 | <<locked>> | 80% | 53,853 psi | 84% | 2894 fps | 100% |
| Lovex S071 | <<locked>> | 80% | 36,303 psi | 57% | 2566 fps | 99.2% |
| Norma 204 | <<locked>> | 80% | 52,373 psi | 82% | 2913 fps | 99.8% |
| Norma 217 | <<locked>> | 84% | 29,501 psi | 46% | 2516 fps | 95.7% |
| Norma MRP | <<locked>> | 80% | 44,556 psi | 70% | 2841 fps | 99.8% |
| Norma URP | <<locked>> | 80% | 53,722 psi | 84% | 2910 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 40,001 psi | 63% | 2753 fps | 97.6% |
| Ramshot Hunter | <<locked>> | 80% | 52,446 psi | 82% | 2913 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 35,955 psi | 56% | 2628 fps | 98% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 29,051 psi | 46% | 1726 fps | 100% |
| ReloadSwiss RS 76 | 61.6 gr | 80% | 33,475 psi | 52% | 2651 fps | 98.2% |
| ReloadSwiss RS 80 | <<locked>> | 86% | 38,203 psi | 60% | 2740 fps | 95.5% |
| Rottweil R 904 | <<locked>> | 80% | 46,963 psi | 74% | 2795 fps | 98.7% |
| Rottweil R 905 | <<locked>> | 80% | 45,426 psi | 71% | 2802 fps | 99.3% |
| Shooters World SW4350 | <<locked>> | 80% | 53,853 psi | 84% | 2894 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 54,085 psi | 85% | 2841 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 45,107 psi | 71% | 2795 fps | 99.2% |
| Somchem S361 | <<locked>> | 80% | 47,790 psi | 75% | 2785 fps | 98.4% |
| Somchem S365 | <<locked>> | 80% | 51,401 psi | 81% | 2861 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 45,963 psi | 72% | 2779 fps | 99.7% |
| Vihtavuori N165 | <<locked>> | 80% | 40,161 psi | 63% | 2654 fps | 98.7% |
| Vihtavuori N170 | <<locked>> | 92% | 51,053 psi | 80% | 2887 fps | 95.4% |
| Vihtavuori N555 | <<locked>> | 80% | 45,382 psi | 71% | 2785 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 44,309 psi | 69% | 2835 fps | 97.8% |
| Vihtavuori N565 | <<locked>> | 80% | 36,666 psi | 57% | 2648 fps | 95.7% |
| Vihtavuori N568 | <<locked>> | 86% | 39,523 psi | 62% | 2759 fps | 95.4% |
| Vihtavuori N570 | 68.7 gr | 92% | 46,369 psi | 73% | 2943 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 80% | 38,479 psi | 60% | 2762 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 42,293 psi | 66% | 2710 fps | 98.7% |
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 62 powders for 6.5 x 63 Messner Mag. loaded with the .264 | 140gr | Speer Deep Curl Soft Point. Vihtavuori N570 delivers the highest muzzle velocity at 3,150 fps; across all powders the maximum-charge window runs from 1,883 fps to 3,150 fps. ADI AR 2218 gives the best case fill at 100 %, and 62 of the 62 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 1:10.5 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. Hodgdon Retumbo, Vihtavuori N570, ReloadSwiss RS 76 rank at the top here: for 6.5 x 63 Messner Mag. with the .264 | 140gr | Speer Deep Curl Soft Point 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.