Load Specifications
Load data in caliber 6.5 x 63 R Messner Mag. with .264 | 159gr | RWS TMR bullet and 51 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ADI AR 2218, Hodgdon Retumbo and Vihtavuori N570.
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% | 56,927 psi | 89% | 2772 fps | 100% |
| Accurate 8700ᴾ | <<locked>> | 100% | 47,674 psi | 75% | 2753 fps | 97.2% |
| Accurate MAGPRO | <<locked>> | 84% | 55,985 psi | 88% | 2887 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 82% | 54,244 psi | 85% | 2802 fps | 100% |
| ADI AR 2213 | <<locked>> | 86% | 56,681 psi | 89% | 2881 fps | 100% |
| ADI AR 2217 | <<locked>> | 94% | 55,521 psi | 87% | 2861 fps | 100% |
| ADI AR 2218 | <<locked>> | 98% | 55,695 psi | 87% | 2992 fps | 99.4% |
| ADI AR 2225 | <<locked>> | 96% | 54,868 psi | 86% | 2887 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 57,580 psi | 90% | 2844 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 86% | 57,159 psi | 90% | 2874 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 86% | 55,274 psi | 87% | 2772 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 90% | 55,767 psi | 87% | 2851 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 82% | 55,840 psi | 88% | 2861 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 96% | 57,638 psi | 90% | 2966 fps | 99.4% |
| Alliant Reloder-50ᴾ | <<locked>> | 100% | 57,479 psi | 90% | 2963 fps | 99% |
| Baschieri & Pellagri 109 | <<locked>> | 88% | 56,768 psi | 89% | 2844 fps | 99.3% |
| Bofors RP15 | <<locked>> | 88% | 56,362 psi | 88% | 2861 fps | 100% |
| Bofors RP30 | <<locked>> | 92% | 55,593 psi | 87% | 2877 fps | 100% |
| Bofors RP5 | <<locked>> | 86% | 57,159 psi | 90% | 2874 fps | 100% |
| Hodgdon H1000 | <<locked>> | 92% | 56,884 psi | 89% | 2877 fps | 100% |
| Hodgdon H4831 | <<locked>> | 84% | 55,376 psi | 87% | 2808 fps | 99.9% |
| Hodgdon H4831 SC | <<locked>> | 84% | 54,389 psi | 85% | 2795 fps | 99.9% |
| Hodgdon Retumbo | <<locked>> | 90% | 55,158 psi | 86% | 2943 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,942 psi | 59% | 1781 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 84% | 55,608 psi | 87% | 2785 fps | 99.9% |
| IMR 7828 SSC | <<locked>> | 86% | 55,245 psi | 87% | 2864 fps | 100% |
| IMR 7977 Enduron | <<locked>> | 90% | 54,302 psi | 85% | 2743 fps | 96.2% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 57,508 psi | 90% | 2927 fps | 100% |
| Lovex S071 | <<locked>> | 90% | 55,158 psi | 86% | 2746 fps | 100% |
| Norma 217 | <<locked>> | 98% | 55,042 psi | 86% | 2890 fps | 100% |
| Norma MRP | <<locked>> | 84% | 57,290 psi | 90% | 2884 fps | 100% |
| Ramshot Grand | <<locked>> | 86% | 56,333 psi | 88% | 2884 fps | 100% |
| Ramshot Magnum | <<locked>> | 88% | 54,636 psi | 86% | 2815 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 39,044 psi | 61% | 1824 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 90% | 55,796 psi | 87% | 2930 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 92% | 54,868 psi | 86% | 2907 fps | 99.9% |
| Rottweil R 904 | <<locked>> | 82% | 54,723 psi | 86% | 2772 fps | 100% |
| Rottweil R 905 | <<locked>> | 84% | 57,392 psi | 90% | 2838 fps | 100% |
| SNPE Vectan SP 13ᴾ | <<locked>> | 100% | 49,734 psi | 78% | 2762 fps | 97.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 57,000 psi | 89% | 2835 fps | 100% |
| Somchem S361 | <<locked>> | 82% | 55,898 psi | 88% | 2766 fps | 99.9% |
| Somchem S385 | <<locked>> | 84% | 57,566 psi | 90% | 2805 fps | 100% |
| Vihtavuori N165 | <<locked>> | 88% | 57,508 psi | 90% | 2795 fps | 100% |
| Vihtavuori N170 | <<locked>> | 92% | 56,768 psi | 89% | 2835 fps | 98.1% |
| Vihtavuori N555 | <<locked>> | 84% | 57,261 psi | 90% | 2802 fps | 100% |
| Vihtavuori N560 | <<locked>> | 84% | 56,637 psi | 89% | 2894 fps | 100% |
| Vihtavuori N565 | <<locked>> | 90% | 57,638 psi | 90% | 2890 fps | 100% |
| Vihtavuori N568 | <<locked>> | 92% | 55,419 psi | 87% | 2904 fps | 99.8% |
| Vihtavuori N570 | <<locked>> | 94% | 56,898 psi | 89% | 2972 fps | 99.1% |
| Winchester StaBALL HD | <<locked>> | 86% | 55,927 psi | 88% | 2864 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 86% | 57,348 psi | 90% | 2805 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% | 46,717 psi | 73% | 2618 fps | 100% |
| Accurate 8700 | <<locked>> | 96% | 41,278 psi | 65% | 2628 fps | 95.3% |
| Accurate MAGPRO | <<locked>> | 80% | 48,646 psi | 76% | 2762 fps | 99.2% |
| ADI AR 2209 | <<locked>> | 80% | 50,850 psi | 80% | 2746 fps | 100% |
| ADI AR 2213 | <<locked>> | 80% | 46,021 psi | 72% | 2703 fps | 99.5% |
| ADI AR 2217 | <<locked>> | 80% | 34,447 psi | 54% | 2461 fps | 97.3% |
| ADI AR 2218 | 68.9 gr | 90% | 41,684 psi | 65% | 2713 fps | 96.1% |
| ADI AR 2225 | <<locked>> | 80% | 31,705 psi | 50% | 2438 fps | 99% |
| Alliant Reloder-19 | <<locked>> | 80% | 50,618 psi | 79% | 2740 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 80% | 46,775 psi | 73% | 2703 fps | 99.9% |
| Alliant Reloder-23 | <<locked>> | 80% | 45,513 psi | 71% | 2628 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 39,813 psi | 62% | 2589 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 80% | 52,040 psi | 82% | 2805 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 86% | 39,842 psi | 62% | 2641 fps | 95.5% |
| Alliant Reloder-50 | <<locked>> | 92% | 42,859 psi | 67% | 2700 fps | 95.9% |
| Baschieri & Pellagri 109 | <<locked>> | 80% | 43,816 psi | 69% | 2615 fps | 97% |
| Bofors RP15 | <<locked>> | 80% | 43,685 psi | 68% | 2648 fps | 99.7% |
| Bofors RP30 | <<locked>> | 80% | 37,173 psi | 58% | 2536 fps | 98.1% |
| Bofors RP5 | <<locked>> | 80% | 46,775 psi | 73% | 2703 fps | 99.9% |
| Hodgdon H1000 | <<locked>> | 80% | 37,318 psi | 58% | 2530 fps | 98.7% |
| Hodgdon H4831 | <<locked>> | 80% | 48,486 psi | 76% | 2697 fps | 99.4% |
| Hodgdon H4831 SC | <<locked>> | 80% | 47,616 psi | 75% | 2680 fps | 99.3% |
| Hodgdon Retumbo | 57.8 gr | 80% | 38,885 psi | 61% | 2648 fps | 99.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,601 psi | 45% | 1591 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 49,168 psi | 77% | 2680 fps | 99.5% |
| IMR 7828 SSC | <<locked>> | 80% | 44,788 psi | 70% | 2687 fps | 99.3% |
| IMR 7977 Enduron | <<locked>> | 88% | 50,778 psi | 80% | 2684 fps | 95.3% |
| IMR 8133 Enduron | <<locked>> | 82% | 31,314 psi | 49% | 2411 fps | 95.9% |
| Lovex S071 | <<locked>> | 80% | 40,451 psi | 63% | 2507 fps | 100% |
| Norma 217 | <<locked>> | 80% | 29,573 psi | 46% | 2382 fps | 97.4% |
| Norma MRP | <<locked>> | 80% | 49,893 psi | 78% | 2772 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 45,368 psi | 71% | 2707 fps | 99.6% |
| Ramshot Magnum | <<locked>> | 80% | 40,843 psi | 64% | 2585 fps | 99.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 29,269 psi | 46% | 1627 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 80% | 38,247 psi | 60% | 2628 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 80% | 35,157 psi | 55% | 2523 fps | 96% |
| Rottweil R 904 | <<locked>> | 80% | 51,358 psi | 80% | 2720 fps | 99.9% |
| Rottweil R 905 | <<locked>> | 80% | 50,241 psi | 79% | 2730 fps | 100% |
| SNPE Vectan SP 13 | <<locked>> | 96% | 43,468 psi | 68% | 2644 fps | 95.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 49,908 psi | 78% | 2723 fps | 100% |
| Somchem S361 | <<locked>> | 80% | 52,214 psi | 82% | 2710 fps | 99.7% |
| Somchem S385 | <<locked>> | 80% | 50,618 psi | 79% | 2700 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 44,469 psi | 70% | 2589 fps | 99.9% |
| Vihtavuori N170 | <<locked>> | 84% | 43,482 psi | 68% | 2602 fps | 95% |
| Vihtavuori N555 | <<locked>> | 80% | 50,459 psi | 79% | 2703 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 49,400 psi | 77% | 2776 fps | 99.6% |
| Vihtavuori N565 | <<locked>> | 80% | 41,205 psi | 65% | 2602 fps | 98.5% |
| Vihtavuori N568 | <<locked>> | 80% | 36,303 psi | 57% | 2536 fps | 95.8% |
| Vihtavuori N570 | 63 gr | 84% | 39,871 psi | 62% | 2651 fps | 95% |
| Winchester StaBALL HD | <<locked>> | 80% | 44,875 psi | 70% | 2703 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 46,833 psi | 73% | 2641 fps | 99.9% |
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 51 powders for 6.5 x 63 R Messner Mag. loaded with the .264 | 159gr | RWS TMR. ADI AR 2218 delivers the highest muzzle velocity at 2,992 fps; across all powders the maximum-charge window runs from 1,781 fps to 2,992 fps. Accurate 8700 gives the best case fill at 100 %, and 51 of the 51 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 159.0 gr projectile in 0.264" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. Accurate 8700, Alliant Reloder-50, Hodgdon TrailBoss 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. ADI AR 2218, Hodgdon Retumbo, Vihtavuori N570 rank at the top here: for 6.5 x 63 R Messner Mag. with the .264 | 159gr | RWS TMR 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.