Load Specifications
Load data in caliber 6.5 x 63 Messner Mag. with .257 | 115gr | Federal Trophy Bonded bullet and 76 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Winchester StaBALL HD, Norma MRP and Vihtavuori N560.
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>> | 94% | 54,868 psi | 86% | 3163 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 56,028 psi | 88% | 3205 fps | 100% |
| Accurate MAGPRO | <<locked>> | 94% | 57,116 psi | 90% | 3320 fps | 97.8% |
| ADI AR 2208 | <<locked>> | 82% | 56,637 psi | 89% | 3159 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 56,652 psi | 89% | 3261 fps | 99.3% |
| ADI AR 2213 | <<locked>> | 94% | 54,665 psi | 86% | 3261 fps | 98.3% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 48,878 psi | 77% | 3140 fps | 97.5% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 43,787 psi | 69% | 3097 fps | 99.1% |
| Alliant Reloder-16 | <<locked>> | 88% | 56,608 psi | 89% | 3261 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 54,201 psi | 85% | 3222 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 56,318 psi | 88% | 3248 fps | 99.3% |
| Alliant Reloder-22 | <<locked>> | 94% | 54,665 psi | 86% | 3258 fps | 99.2% |
| Alliant Reloder-23 | <<locked>> | 96% | 55,738 psi | 87% | 3228 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 55,085 psi | 86% | 3294 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 56,260 psi | 88% | 3327 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 96% | 56,463 psi | 88% | 3212 fps | 95.9% |
| Bofors RP15 | <<locked>> | 98% | 57,348 psi | 90% | 3304 fps | 99.4% |
| Bofors RP30ᴾ | <<locked>> | 100% | 51,198 psi | 80% | 3222 fps | 98.2% |
| Bofors RP5 | <<locked>> | 94% | 54,665 psi | 86% | 3258 fps | 99.2% |
| Bofors RP7 | <<locked>> | 84% | 54,694 psi | 86% | 3143 fps | 99.5% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 54,172 psi | 85% | 3241 fps | 99% |
| Hodgdon H414 | <<locked>> | 86% | 57,653 psi | 90% | 3261 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 84% | 56,536 psi | 89% | 3215 fps | 99.4% |
| Hodgdon H4831 | <<locked>> | 92% | 54,534 psi | 85% | 3196 fps | 97.6% |
| Hodgdon H4831 SC | <<locked>> | 94% | 57,246 psi | 90% | 3238 fps | 98.1% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 57,101 psi | 89% | 3179 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 54,114 psi | 85% | 3366 fps | 99.8% |
| Hodgdon Superformance | <<locked>> | 84% | 54,418 psi | 85% | 3235 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,043 psi | 58% | 2041 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 56,289 psi | 88% | 3186 fps | 99.7% |
| IMR 4451 Enduron | <<locked>> | 84% | 56,173 psi | 88% | 3173 fps | 99.8% |
| IMR 4831 | <<locked>> | 88% | 56,144 psi | 88% | 3192 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 55,463 psi | 87% | 3176 fps | 97.9% |
| IMR 7828 SSC | <<locked>> | 96% | 56,115 psi | 88% | 3301 fps | 98.6% |
| Lovex S065 | <<locked>> | 86% | 56,869 psi | 89% | 3173 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 54,940 psi | 86% | 3159 fps | 99.8% |
| Lovex S071ᴾ | <<locked>> | 100% | 55,680 psi | 87% | 3176 fps | 100% |
| Norma 204 | <<locked>> | 88% | 57,435 psi | 90% | 3245 fps | 99.3% |
| Norma 217ᴾ | <<locked>> | 100% | 39,160 psi | 61% | 3009 fps | 97.2% |
| Norma MRP | <<locked>> | 92% | 54,302 psi | 85% | 3278 fps | 99.8% |
| Norma URP | <<locked>> | 86% | 54,288 psi | 85% | 3186 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 56,956 psi | 89% | 3320 fps | 99% |
| Ramshot Hunter | <<locked>> | 88% | 56,869 psi | 89% | 3245 fps | 100% |
| Ramshot Magnum | <<locked>> | 98% | 55,303 psi | 87% | 3248 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,753 psi | 59% | 2087 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 57,711 psi | 90% | 3268 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 56,028 psi | 88% | 3228 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 54,230 psi | 85% | 3251 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 54,897 psi | 86% | 3363 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 49,763 psi | 78% | 3225 fps | 96.6% |
| Rottweil R 903 | <<locked>> | 82% | 56,028 psi | 88% | 3150 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 54,288 psi | 85% | 3166 fps | 98.2% |
| Rottweil R 905 | <<locked>> | 92% | 55,753 psi | 87% | 3235 fps | 99.3% |
| Rottweil R 907 | <<locked>> | 84% | 54,694 psi | 86% | 3143 fps | 99.5% |
| Shooters World Long Rifle | <<locked>> | 86% | 56,869 psi | 89% | 3173 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 54,940 psi | 86% | 3159 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 57,421 psi | 90% | 3209 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 55,666 psi | 87% | 3012 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 56,144 psi | 88% | 3117 fps | 99.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 55,317 psi | 87% | 3232 fps | 99.2% |
| Somchem S355 | <<locked>> | 82% | 55,709 psi | 87% | 3143 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 55,898 psi | 88% | 3153 fps | 97.8% |
| Somchem S365 | <<locked>> | 88% | 54,708 psi | 86% | 3189 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 56,405 psi | 88% | 3205 fps | 99.7% |
| Vihtavuori N150 | <<locked>> | 84% | 56,753 psi | 89% | 3107 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 56,231 psi | 88% | 3176 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 55,796 psi | 87% | 3179 fps | 99.5% |
| Vihtavuori N550 | <<locked>> | 86% | 55,245 psi | 87% | 3176 fps | 100% |
| Vihtavuori N555 | <<locked>> | 92% | 54,230 psi | 85% | 3202 fps | 100% |
| Vihtavuori N560 | <<locked>> | 92% | 54,143 psi | 85% | 3268 fps | 97.8% |
| Vihtavuori N565 | <<locked>> | 98% | 54,041 psi | 85% | 3245 fps | 98% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 50,778 psi | 80% | 3232 fps | 96.2% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 55,883 psi | 88% | 3130 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 53,940 psi | 85% | 3199 fps | 99.7% |
| Winchester StaBALL HD | <<locked>> | 98% | 57,638 psi | 90% | 3379 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 56,260 psi | 88% | 3199 fps | 99.2% |
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% | 33,852 psi | 53% | 2730 fps | 96.5% |
| Accurate 4350 | <<locked>> | 80% | 45,440 psi | 71% | 3018 fps | 99.9% |
| Accurate MAGPRO | <<locked>> | 88% | 46,079 psi | 72% | 3107 fps | 95.2% |
| ADI AR 2208 | <<locked>> | 80% | 53,330 psi | 84% | 3107 fps | 100% |
| ADI AR 2209 | <<locked>> | 80% | 37,884 psi | 59% | 2871 fps | 95% |
| ADI AR 2213 | <<locked>> | 88% | 44,469 psi | 70% | 3058 fps | 95.9% |
| ADI AR 2217 | <<locked>> | 96% | 42,728 psi | 67% | 3005 fps | 95.6% |
| ADI AR 2225 | <<locked>> | 92% | 33,576 psi | 53% | 2822 fps | 95.3% |
| Alliant Reloder-16 | <<locked>> | 80% | 43,511 psi | 68% | 3025 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 80% | 50,314 psi | 79% | 3156 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 37,913 psi | 59% | 2867 fps | 95.1% |
| Alliant Reloder-22 | <<locked>> | 84% | 38,798 psi | 61% | 2930 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 80% | 32,445 psi | 51% | 2762 fps | 99.2% |
| Alliant Reloder-25 | <<locked>> | 82% | 30,313 psi | 48% | 2717 fps | 95.6% |
| Alliant Reloder-26 | <<locked>> | 80% | 35,679 psi | 56% | 2913 fps | 98.5% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 53,185 psi | 83% | 3150 fps | 95.1% |
| Bofors RP15 | <<locked>> | 86% | 38,493 psi | 60% | 2917 fps | 95.3% |
| Bofors RP30 | <<locked>> | 94% | 41,597 psi | 65% | 3022 fps | 95.8% |
| Bofors RP5 | <<locked>> | 84% | 38,798 psi | 61% | 2930 fps | 95.6% |
| Bofors RP7 | <<locked>> | 80% | 48,167 psi | 75% | 3025 fps | 98.7% |
| Hodgdon H1000 | <<locked>> | 92% | 40,973 psi | 64% | 2966 fps | 95.7% |
| Hodgdon H414 | <<locked>> | 80% | 47,224 psi | 74% | 3071 fps | 99% |
| Hodgdon H4350 | <<locked>> | 80% | 49,617 psi | 78% | 3087 fps | 98.5% |
| Hodgdon H4831 | <<locked>> | 86% | 44,411 psi | 70% | 2999 fps | 95.1% |
| Hodgdon H4831 SC | <<locked>> | 88% | 46,659 psi | 73% | 3045 fps | 95.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 40,973 psi | 64% | 2900 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 88% | 36,143 psi | 57% | 2940 fps | 95% |
| Hodgdon Superformance | <<locked>> | 80% | 46,746 psi | 73% | 3094 fps | 98.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,615 psi | 43% | 1824 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 43,598 psi | 68% | 2943 fps | 97.9% |
| IMR 4451 Enduron | <<locked>> | 80% | 49,603 psi | 78% | 3054 fps | 99.2% |
| IMR 4831 | <<locked>> | 80% | 43,352 psi | 68% | 2963 fps | 99.8% |
| IMR 4955 Enduron | <<locked>> | 84% | 43,192 psi | 68% | 2933 fps | 95% |
| IMR 7828 SSC | <<locked>> | 88% | 42,699 psi | 67% | 3028 fps | 95.4% |
| Lovex S065 | <<locked>> | 80% | 47,065 psi | 74% | 2999 fps | 99.6% |
| Lovex S070 | <<locked>> | 80% | 45,382 psi | 71% | 2982 fps | 98.8% |
| Lovex S071 | <<locked>> | 82% | 31,082 psi | 49% | 2654 fps | 95.4% |
| Norma 204 | <<locked>> | 80% | 43,613 psi | 68% | 2982 fps | 96.8% |
| Norma 217 | <<locked>> | 96% | 34,243 psi | 54% | 2874 fps | 95.1% |
| Norma MRP | 57.4 gr | 80% | 35,331 psi | 55% | 2871 fps | 95.8% |
| Norma URP | <<locked>> | 80% | 44,541 psi | 70% | 3005 fps | 99.8% |
| Ramshot Grand | <<locked>> | 88% | 42,438 psi | 67% | 3035 fps | 95.7% |
| Ramshot Hunter | <<locked>> | 80% | 43,439 psi | 68% | 2995 fps | 98.9% |
| Ramshot Magnum | <<locked>> | 86% | 35,288 psi | 55% | 2828 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,297 psi | 44% | 1870 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 53,447 psi | 84% | 3205 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 45,513 psi | 71% | 3038 fps | 99.8% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 43,627 psi | 68% | 3054 fps | 99.7% |
| ReloadSwiss RS 76 | <<locked>> | 88% | 35,360 psi | 55% | 2910 fps | 96.1% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 46,079 psi | 72% | 3150 fps | 95.5% |
| Rottweil R 903 | <<locked>> | 80% | 52,402 psi | 82% | 3091 fps | 100% |
| Rottweil R 904 | <<locked>> | 82% | 41,945 psi | 66% | 2917 fps | 95.2% |
| Rottweil R 905 | <<locked>> | 80% | 37,202 psi | 58% | 2848 fps | 95% |
| Rottweil R 907 | <<locked>> | 80% | 48,167 psi | 75% | 3025 fps | 98.7% |
| Shooters World Long Rifle | <<locked>> | 80% | 47,065 psi | 74% | 2999 fps | 99.6% |
| Shooters World SW4350 | <<locked>> | 80% | 45,382 psi | 71% | 2982 fps | 98.8% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 53,766 psi | 84% | 3150 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 52,330 psi | 82% | 2959 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 46,050 psi | 72% | 2936 fps | 98.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 82% | 39,566 psi | 62% | 2910 fps | 95.9% |
| Somchem S355 | <<locked>> | 80% | 52,156 psi | 82% | 3087 fps | 100% |
| Somchem S361 | <<locked>> | 84% | 45,701 psi | 72% | 2963 fps | 95.5% |
| Somchem S365 | <<locked>> | 80% | 41,495 psi | 65% | 2956 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 37,826 psi | 59% | 2835 fps | 96.2% |
| Vihtavuori N150 | <<locked>> | 80% | 49,951 psi | 78% | 3002 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 45,977 psi | 72% | 2999 fps | 99.9% |
| Vihtavuori N165 | <<locked>> | 84% | 37,521 psi | 59% | 2815 fps | 95.8% |
| Vihtavuori N550 | <<locked>> | 80% | 45,411 psi | 71% | 3002 fps | 99.8% |
| Vihtavuori N555 | <<locked>> | 80% | 36,405 psi | 57% | 2848 fps | 99.1% |
| Vihtavuori N560 | 61.7 gr | 86% | 43,888 psi | 69% | 3064 fps | 95.2% |
| Vihtavuori N565 | <<locked>> | 92% | 44,063 psi | 69% | 3048 fps | 95.6% |
| Vihtavuori N568 | <<locked>> | 98% | 47,355 psi | 74% | 3163 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 45,165 psi | 71% | 2953 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 47,224 psi | 74% | 3071 fps | 99% |
| Winchester StaBALL HD | 56.8 gr | 80% | 28,877 psi | 45% | 2769 fps | 99.2% |
| Winchester Supreme 780 | <<locked>> | 84% | 39,740 psi | 62% | 2877 fps | 95.8% |
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 76 powders for 6.5 x 63 Messner Mag. loaded with the .257 | 115gr | Federal Trophy Bonded. Winchester StaBALL HD delivers the highest muzzle velocity at 3,379 fps; across all powders the maximum-charge window runs from 2,041 fps to 3,379 fps. ADI AR 2217 gives the best case fill at 100 %, and 76 of the 76 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 115.0 gr projectile in 0.264" calls for a 1:7.5 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, Alliant Reloder-25 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. Winchester StaBALL HD, Norma MRP, Vihtavuori N560 rank at the top here: for 6.5 x 63 Messner Mag. with the .257 | 115gr | Federal Trophy Bonded 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.