Load Specifications
Load data in caliber 6.5 x 63 Messner Mag. with .264 | 130gr | Sierra Tipped GameKing bullet and 74 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon Retumbo, ReloadSwiss RS 76 and Accurate High Country.
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>> | 92% | 57,725 psi | 90% | 3048 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 54,766 psi | 86% | 3018 fps | 100% |
| Accurate High Country | <<locked>> | 88% | 55,347 psi | 87% | 3150 fps | 99.4% |
| Accurate MAGPRO | <<locked>> | 90% | 56,318 psi | 88% | 3153 fps | 98.8% |
| ADI AR 2209 | <<locked>> | 88% | 55,434 psi | 87% | 3081 fps | 99.8% |
| ADI AR 2213 | <<locked>> | 92% | 57,421 psi | 90% | 3156 fps | 99.5% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 55,376 psi | 87% | 3114 fps | 99.6% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 49,763 psi | 78% | 3074 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 55,825 psi | 87% | 3081 fps | 99.8% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 55,825 psi | 87% | 3081 fps | 99.8% |
| Alliant Reloder-16 | <<locked>> | 84% | 55,608 psi | 87% | 3074 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 55,187 psi | 86% | 3074 fps | 99.8% |
| Alliant Reloder-22 | <<locked>> | 92% | 57,682 psi | 90% | 3150 fps | 99.9% |
| Alliant Reloder-23 | <<locked>> | 92% | 55,477 psi | 87% | 3054 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 96% | 55,071 psi | 86% | 3123 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 88% | 55,927 psi | 88% | 3146 fps | 100% |
| Alliant Reloder-33ᴾ | <<locked>> | 100% | 52,446 psi | 82% | 3133 fps | 96.6% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 54,824 psi | 86% | 3048 fps | 97.1% |
| Bofors RP15 | <<locked>> | 94% | 56,579 psi | 89% | 3130 fps | 99.9% |
| Bofors RP30 | <<locked>> | 98% | 54,897 psi | 86% | 3130 fps | 99.6% |
| Bofors RP5 | <<locked>> | 92% | 57,682 psi | 90% | 3150 fps | 99.9% |
| Bofors RP7 | <<locked>> | 82% | 56,246 psi | 88% | 3015 fps | 100% |
| Hodgdon H1000 | <<locked>> | 98% | 57,000 psi | 89% | 3143 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 82% | 56,188 psi | 88% | 3074 fps | 100% |
| Hodgdon H4831 | <<locked>> | 90% | 56,985 psi | 89% | 3087 fps | 99.1% |
| Hodgdon H4831 SC | <<locked>> | 90% | 55,637 psi | 87% | 3064 fps | 98.9% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 55,898 psi | 88% | 2992 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 57,653 psi | 90% | 3264 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 56,797 psi | 89% | 3110 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,463 psi | 59% | 1939 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 54,607 psi | 86% | 3002 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 82% | 57,653 psi | 90% | 3038 fps | 100% |
| IMR 4831 | <<locked>> | 84% | 55,056 psi | 86% | 3009 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 57,464 psi | 90% | 3061 fps | 99.2% |
| IMR 7828 SSC | <<locked>> | 92% | 55,303 psi | 87% | 3130 fps | 99.4% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 45,310 psi | 71% | 2979 fps | 98.1% |
| Lovex S065 | <<locked>> | 82% | 55,013 psi | 86% | 2982 fps | 100% |
| Lovex S070 | <<locked>> | 84% | 56,811 psi | 89% | 3035 fps | 100% |
| Lovex S071 | <<locked>> | 96% | 55,317 psi | 87% | 3012 fps | 100% |
| Norma 204 | <<locked>> | 84% | 55,753 psi | 87% | 3061 fps | 99.7% |
| Norma 217ᴾ | <<locked>> | 100% | 45,876 psi | 72% | 3005 fps | 99.7% |
| Norma MRP | <<locked>> | 90% | 57,653 psi | 90% | 3169 fps | 100% |
| Norma URP | <<locked>> | 84% | 56,507 psi | 89% | 3051 fps | 100% |
| Ramshot Grand | <<locked>> | 92% | 56,333 psi | 88% | 3156 fps | 99.7% |
| Ramshot Hunter | <<locked>> | 84% | 55,593 psi | 87% | 3061 fps | 100% |
| Ramshot Magnum | <<locked>> | 94% | 54,766 psi | 86% | 3081 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,232 psi | 60% | 1982 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 54,723 psi | 86% | 3038 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 57,087 psi | 89% | 3127 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 54,694 psi | 86% | 3199 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 53,954 psi | 85% | 3150 fps | 98.7% |
| Rottweil R 904 | <<locked>> | 88% | 56,376 psi | 88% | 3048 fps | 99.4% |
| Rottweil R 905 | <<locked>> | 88% | 54,723 psi | 86% | 3061 fps | 99.8% |
| Rottweil R 907 | <<locked>> | 82% | 56,246 psi | 88% | 3015 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 82% | 55,013 psi | 86% | 2982 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 56,811 psi | 89% | 3035 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 57,653 psi | 90% | 2989 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 54,302 psi | 85% | 3058 fps | 99.8% |
| Somchem S361 | <<locked>> | 86% | 54,259 psi | 85% | 2982 fps | 98.7% |
| Somchem S365 | <<locked>> | 86% | 57,551 psi | 90% | 3054 fps | 100% |
| Somchem S385 | <<locked>> | 88% | 55,085 psi | 86% | 3028 fps | 100% |
| Vihtavuori N160 | <<locked>> | 82% | 54,679 psi | 86% | 2989 fps | 100% |
| Vihtavuori N165 | <<locked>> | 92% | 54,984 psi | 86% | 3015 fps | 99.9% |
| Vihtavuori N170 | <<locked>> | 98% | 57,421 psi | 90% | 3081 fps | 95.9% |
| Vihtavuori N550 | <<locked>> | 84% | 57,377 psi | 90% | 3048 fps | 100% |
| Vihtavuori N555 | <<locked>> | 90% | 57,377 psi | 90% | 3081 fps | 100% |
| Vihtavuori N560 | <<locked>> | 90% | 57,261 psi | 90% | 3169 fps | 99.3% |
| Vihtavuori N565 | <<locked>> | 96% | 57,609 psi | 90% | 3150 fps | 99.5% |
| Vihtavuori N568 | <<locked>> | 98% | 54,665 psi | 86% | 3153 fps | 98.4% |
| Vihtavuori N570ᴾ | <<locked>> | 100% | 55,622 psi | 87% | 3212 fps | 96.9% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 57,711 psi | 90% | 2989 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 56,188 psi | 88% | 3074 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 92% | 54,186 psi | 85% | 3143 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 90% | 54,969 psi | 86% | 3025 fps | 99.8% |
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% | 38,537 psi | 60% | 2703 fps | 99.1% |
| Accurate 4350 | <<locked>> | 80% | 51,169 psi | 80% | 2963 fps | 100% |
| Accurate High Country | 58.4 gr | 80% | 41,887 psi | 66% | 2884 fps | 96.9% |
| Accurate MAGPRO | <<locked>> | 82% | 42,496 psi | 67% | 2887 fps | 95.7% |
| ADI AR 2209 | <<locked>> | 80% | 42,525 psi | 67% | 2838 fps | 98% |
| ADI AR 2213 | <<locked>> | 80% | 37,985 psi | 60% | 2766 fps | 95.3% |
| ADI AR 2217 | <<locked>> | 88% | 36,912 psi | 58% | 2736 fps | 95.3% |
| ADI AR 2225 | <<locked>> | 84% | 29,370 psi | 46% | 2569 fps | 95% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 42,931 psi | 67% | 2838 fps | 98.1% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 42,931 psi | 67% | 2838 fps | 98.1% |
| Alliant Reloder-16 | <<locked>> | 80% | 48,791 psi | 76% | 2963 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 42,525 psi | 67% | 2831 fps | 98% |
| Alliant Reloder-22 | <<locked>> | 80% | 38,435 psi | 60% | 2776 fps | 97% |
| Alliant Reloder-23 | <<locked>> | 80% | 37,028 psi | 58% | 2726 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 32,126 psi | 50% | 2648 fps | 98.2% |
| Alliant Reloder-26 | <<locked>> | 80% | 41,394 psi | 65% | 2890 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 98% | 48,675 psi | 76% | 3064 fps | 95.6% |
| Baschieri & Pellagri 109 | <<locked>> | 88% | 48,283 psi | 76% | 2927 fps | 95.5% |
| Bofors RP15 | <<locked>> | 80% | 35,810 psi | 56% | 2710 fps | 95.9% |
| Bofors RP30 | <<locked>> | 86% | 36,405 psi | 57% | 2753 fps | 95.5% |
| Bofors RP5 | <<locked>> | 80% | 38,435 psi | 60% | 2776 fps | 97% |
| Bofors RP7 | <<locked>> | 80% | 52,779 psi | 83% | 2956 fps | 99.9% |
| Hodgdon H1000 | <<locked>> | 84% | 35,056 psi | 55% | 2690 fps | 95.2% |
| Hodgdon H414 | <<locked>> | 80% | 52,446 psi | 82% | 3012 fps | 100% |
| Hodgdon H4831 | <<locked>> | 80% | 40,364 psi | 63% | 2769 fps | 95.5% |
| Hodgdon H4831 SC | <<locked>> | 80% | 39,784 psi | 62% | 2756 fps | 95.3% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 45,905 psi | 72% | 2835 fps | 100% |
| Hodgdon Retumbo | 57.7 gr | 82% | 33,533 psi | 53% | 2733 fps | 95.8% |
| Hodgdon Superformance | <<locked>> | 80% | 52,605 psi | 82% | 3045 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,123 psi | 44% | 1736 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 48,269 psi | 76% | 2890 fps | 99.6% |
| IMR 4451 Enduron | <<locked>> | 80% | 54,157 psi | 85% | 2982 fps | 100% |
| IMR 4831 | <<locked>> | 80% | 48,312 psi | 76% | 2897 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 42,003 psi | 66% | 2772 fps | 96.3% |
| IMR 7828 SSC | <<locked>> | 82% | 39,189 psi | 61% | 2808 fps | 95.9% |
| IMR 8133 Enduron | <<locked>> | 94% | 36,970 psi | 58% | 2789 fps | 95.5% |
| Lovex S065 | <<locked>> | 80% | 51,619 psi | 81% | 2927 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 50,256 psi | 79% | 2927 fps | 99.9% |
| Lovex S071 | <<locked>> | 80% | 33,112 psi | 52% | 2572 fps | 97.7% |
| Norma 204 | <<locked>> | 80% | 48,660 psi | 76% | 2940 fps | 99% |
| Norma 217 | <<locked>> | 90% | 32,474 psi | 51% | 2690 fps | 96.1% |
| Norma MRP | <<locked>> | 80% | 40,451 psi | 63% | 2848 fps | 98.7% |
| Norma URP | <<locked>> | 80% | 49,806 psi | 78% | 2943 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 36,260 psi | 57% | 2746 fps | 95.2% |
| Ramshot Hunter | <<locked>> | 80% | 48,631 psi | 76% | 2943 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 32,503 psi | 51% | 2621 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,689 psi | 45% | 1775 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 51,024 psi | 80% | 2979 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 49,356 psi | 77% | 3005 fps | 100% |
| ReloadSwiss RS 76 | 60.2 gr | 80% | 30,342 psi | 48% | 2631 fps | 95.4% |
| ReloadSwiss RS 80 | <<locked>> | 90% | 39,639 psi | 62% | 2861 fps | 95% |
| Rottweil R 904 | <<locked>> | 80% | 43,627 psi | 68% | 2812 fps | 97.3% |
| Rottweil R 905 | <<locked>> | 80% | 41,829 psi | 66% | 2815 fps | 98% |
| Rottweil R 907 | <<locked>> | 80% | 52,779 psi | 83% | 2956 fps | 99.9% |
| Shooters World Long Rifle | <<locked>> | 80% | 51,619 psi | 81% | 2927 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 50,256 psi | 79% | 2927 fps | 99.9% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 50,676 psi | 79% | 2877 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 41,495 psi | 65% | 2812 fps | 97.9% |
| Somchem S361 | <<locked>> | 80% | 44,396 psi | 70% | 2799 fps | 96.8% |
| Somchem S365 | <<locked>> | 80% | 47,195 psi | 74% | 2897 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 42,496 psi | 67% | 2799 fps | 98.8% |
| Vihtavuori N160 | <<locked>> | 80% | 51,227 psi | 80% | 2936 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 36,956 psi | 58% | 2667 fps | 97.1% |
| Vihtavuori N170 | <<locked>> | 96% | 53,780 psi | 84% | 3018 fps | 95% |
| Vihtavuori N550 | <<locked>> | 80% | 50,502 psi | 79% | 2940 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 41,510 psi | 65% | 2808 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 40,408 psi | 63% | 2838 fps | 95.7% |
| Vihtavuori N565 | <<locked>> | 84% | 38,334 psi | 60% | 2772 fps | 95.3% |
| Vihtavuori N568 | <<locked>> | 92% | 44,063 psi | 69% | 2949 fps | 95.9% |
| Vihtavuori N570 | <<locked>> | 96% | 48,182 psi | 76% | 3071 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 50,314 psi | 79% | 2884 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 52,678 psi | 83% | 3018 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 80% | 33,953 psi | 53% | 2769 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 38,798 psi | 61% | 2717 fps | 97.1% |
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 74 powders for 6.5 x 63 Messner Mag. loaded with the .264 | 130gr | Sierra Tipped GameKing. Hodgdon Retumbo delivers the highest muzzle velocity at 3,264 fps; across all powders the maximum-charge window runs from 1,939 fps to 3,264 fps. ADI AR 2217 gives the best case fill at 100 %, and 74 of the 74 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 130.0 gr projectile in 0.264" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, Alliant Reloder-33 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, ReloadSwiss RS 76, Accurate High Country rank at the top here: for 6.5 x 63 Messner Mag. with the .264 | 130gr | Sierra Tipped GameKing 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.