Load Specifications
Load data in caliber 6.5 x 63 Messner Mag. with .264 | 121gr | Lehigh Defense Match Solid bullet and 72 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon Retumbo, Winchester StaBALL HD 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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You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 94% | 57,566 psi | 90% | 3140 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 54,592 psi | 86% | 3114 fps | 100% |
| Accurate MAGPRO | <<locked>> | 92% | 56,144 psi | 88% | 3241 fps | 98.2% |
| ADI AR 2209 | <<locked>> | 90% | 55,680 psi | 87% | 3179 fps | 99.5% |
| ADI AR 2213 | <<locked>> | 94% | 57,276 psi | 90% | 3245 fps | 99.1% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 51,517 psi | 81% | 3136 fps | 98.6% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 46,050 psi | 72% | 3091 fps | 99.7% |
| Alliant Reloder-16 | <<locked>> | 86% | 55,709 psi | 87% | 3176 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 56,637 psi | 89% | 3186 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 90% | 55,114 psi | 86% | 3163 fps | 99.5% |
| Alliant Reloder-22 | <<locked>> | 94% | 57,406 psi | 90% | 3238 fps | 99.7% |
| Alliant Reloder-23 | <<locked>> | 94% | 55,056 psi | 86% | 3150 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 98% | 54,476 psi | 85% | 3215 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 90% | 55,434 psi | 87% | 3241 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 55,114 psi | 86% | 3133 fps | 96.3% |
| Bofors RP15 | <<locked>> | 96% | 56,260 psi | 88% | 3219 fps | 99.6% |
| Bofors RP30ᴾ | <<locked>> | 100% | 54,056 psi | 85% | 3209 fps | 99.1% |
| Bofors RP5 | <<locked>> | 94% | 57,406 psi | 90% | 3238 fps | 99.7% |
| Bofors RP7 | <<locked>> | 84% | 56,855 psi | 89% | 3117 fps | 99.9% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 56,840 psi | 89% | 3228 fps | 99.6% |
| Hodgdon H414 | <<locked>> | 84% | 56,420 psi | 88% | 3173 fps | 100% |
| Hodgdon H4350 | <<locked>> | 82% | 55,187 psi | 86% | 3127 fps | 99.5% |
| Hodgdon H4831 | <<locked>> | 92% | 57,043 psi | 89% | 3176 fps | 98.5% |
| Hodgdon H4831 SC | <<locked>> | 92% | 55,941 psi | 88% | 3156 fps | 98.4% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 55,825 psi | 87% | 3091 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 57,058 psi | 89% | 3353 fps | 100% |
| Hodgdon Superformance | <<locked>> | 84% | 57,087 psi | 89% | 3212 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,115 psi | 58% | 1995 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 54,984 psi | 86% | 3097 fps | 99.8% |
| IMR 4451 Enduron | <<locked>> | 82% | 54,723 psi | 86% | 3084 fps | 99.9% |
| IMR 4831 | <<locked>> | 86% | 54,969 psi | 86% | 3104 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 57,696 psi | 90% | 3153 fps | 98.7% |
| IMR 7828 SSC | <<locked>> | 94% | 54,969 psi | 86% | 3215 fps | 98.9% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 41,510 psi | 65% | 2979 fps | 96.2% |
| Lovex S065 | <<locked>> | 84% | 55,492 psi | 87% | 3081 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 57,261 psi | 90% | 3133 fps | 100% |
| Lovex S071 | <<locked>> | 98% | 54,810 psi | 86% | 3097 fps | 100% |
| Norma 204 | <<locked>> | 86% | 56,130 psi | 88% | 3163 fps | 99.4% |
| Norma 217ᴾ | <<locked>> | 100% | 41,829 psi | 66% | 3012 fps | 98.5% |
| Norma MRP | <<locked>> | 92% | 57,479 psi | 90% | 3264 fps | 100% |
| Norma URP | <<locked>> | 86% | 56,811 psi | 89% | 3153 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 55,854 psi | 88% | 3238 fps | 99.2% |
| Ramshot Hunter | <<locked>> | 86% | 55,724 psi | 87% | 3159 fps | 100% |
| Ramshot Magnum | <<locked>> | 96% | 54,273 psi | 85% | 3166 fps | 99.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,058 psi | 60% | 2044 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 54,737 psi | 86% | 3136 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 57,029 psi | 89% | 3228 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 53,998 psi | 85% | 3281 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 53,084 psi | 83% | 3228 fps | 97.9% |
| Rottweil R 904 | <<locked>> | 90% | 56,565 psi | 89% | 3140 fps | 98.9% |
| Rottweil R 905 | <<locked>> | 90% | 54,592 psi | 86% | 3150 fps | 99.5% |
| Rottweil R 907 | <<locked>> | 84% | 56,855 psi | 89% | 3117 fps | 99.9% |
| Shooters World Long Rifle | <<locked>> | 84% | 55,492 psi | 87% | 3081 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 57,261 psi | 90% | 3133 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 54,708 psi | 86% | 3031 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 54,157 psi | 85% | 3146 fps | 99.4% |
| Somchem S355 | <<locked>> | 82% | 57,711 psi | 90% | 3104 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 54,636 psi | 86% | 3074 fps | 98.1% |
| Somchem S365 | <<locked>> | 88% | 57,522 psi | 90% | 3156 fps | 100% |
| Somchem S385 | <<locked>> | 90% | 55,259 psi | 87% | 3123 fps | 99.8% |
| Vihtavuori N150 | <<locked>> | 82% | 55,361 psi | 87% | 3018 fps | 100% |
| Vihtavuori N160 | <<locked>> | 84% | 54,708 psi | 86% | 3084 fps | 100% |
| Vihtavuori N165 | <<locked>> | 94% | 54,897 psi | 86% | 3100 fps | 99.7% |
| Vihtavuori N550 | <<locked>> | 86% | 57,667 psi | 90% | 3146 fps | 100% |
| Vihtavuori N555 | <<locked>> | 92% | 57,000 psi | 89% | 3176 fps | 100% |
| Vihtavuori N560 | <<locked>> | 92% | 57,159 psi | 90% | 3258 fps | 98.8% |
| Vihtavuori N565 | <<locked>> | 98% | 57,145 psi | 90% | 3235 fps | 99% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 53,969 psi | 85% | 3232 fps | 97.5% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 54,404 psi | 85% | 3041 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 56,420 psi | 88% | 3173 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 96% | 57,116 psi | 90% | 3291 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 54,969 psi | 86% | 3114 fps | 99.4% |
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% | 35,766 psi | 56% | 2723 fps | 97.8% |
| Accurate 4350 | <<locked>> | 80% | 47,776 psi | 75% | 2999 fps | 100% |
| Accurate MAGPRO | <<locked>> | 86% | 45,382 psi | 71% | 3035 fps | 95.7% |
| ADI AR 2209 | <<locked>> | 80% | 39,726 psi | 62% | 2861 fps | 96.4% |
| ADI AR 2213 | <<locked>> | 84% | 40,654 psi | 64% | 2913 fps | 95.3% |
| ADI AR 2217 | <<locked>> | 92% | 39,291 psi | 62% | 2871 fps | 95.1% |
| ADI AR 2225 | <<locked>> | 90% | 33,083 psi | 52% | 2759 fps | 95.9% |
| Alliant Reloder-16 | <<locked>> | 80% | 45,498 psi | 71% | 3002 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 52,939 psi | 83% | 3127 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 39,798 psi | 62% | 2854 fps | 96.5% |
| Alliant Reloder-22 | <<locked>> | 80% | 35,621 psi | 56% | 2789 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 80% | 34,330 psi | 54% | 2753 fps | 99.8% |
| Alliant Reloder-25 | <<locked>> | 80% | 29,834 psi | 47% | 2651 fps | 96.2% |
| Alliant Reloder-26 | <<locked>> | 80% | 37,739 psi | 59% | 2900 fps | 99.4% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 51,706 psi | 81% | 3071 fps | 95.4% |
| Bofors RP15 | <<locked>> | 84% | 37,884 psi | 59% | 2844 fps | 95.8% |
| Bofors RP30 | <<locked>> | 90% | 38,334 psi | 60% | 2884 fps | 95.3% |
| Bofors RP5 | <<locked>> | 80% | 35,621 psi | 56% | 2789 fps | 95.1% |
| Bofors RP7 | <<locked>> | 80% | 50,140 psi | 79% | 2999 fps | 99.4% |
| Hodgdon H1000 | <<locked>> | 88% | 37,492 psi | 59% | 2828 fps | 95.1% |
| Hodgdon H414 | <<locked>> | 80% | 49,240 psi | 77% | 3048 fps | 99.6% |
| Hodgdon H4350 | <<locked>> | 80% | 51,721 psi | 81% | 3064 fps | 99.2% |
| Hodgdon H4831 | <<locked>> | 84% | 43,482 psi | 68% | 2920 fps | 95.6% |
| Hodgdon H4831 SC | <<locked>> | 84% | 42,641 psi | 67% | 2900 fps | 95.3% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 43,076 psi | 68% | 2874 fps | 100% |
| Hodgdon Retumbo | 59.9 gr | 86% | 35,592 psi | 56% | 2871 fps | 95.7% |
| Hodgdon Superformance | <<locked>> | 80% | 49,168 psi | 77% | 3077 fps | 99.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,920 psi | 44% | 1788 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 45,542 psi | 71% | 2927 fps | 98.8% |
| IMR 4451 Enduron | <<locked>> | 80% | 51,343 psi | 80% | 3025 fps | 99.7% |
| IMR 4831 | <<locked>> | 80% | 45,266 psi | 71% | 2936 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 82% | 42,221 psi | 66% | 2858 fps | 95.4% |
| IMR 7828 SSC | <<locked>> | 86% | 41,901 psi | 66% | 2953 fps | 95.9% |
| IMR 8133 Enduron | <<locked>> | 98% | 38,914 psi | 61% | 2917 fps | 95.3% |
| Lovex S065 | <<locked>> | 80% | 49,037 psi | 77% | 2972 fps | 99.9% |
| Lovex S070 | <<locked>> | 80% | 47,369 psi | 74% | 2963 fps | 99.4% |
| Lovex S071 | <<locked>> | 80% | 30,792 psi | 48% | 2592 fps | 95.9% |
| Norma 204 | <<locked>> | 80% | 45,687 psi | 72% | 2969 fps | 97.8% |
| Norma 217 | <<locked>> | 94% | 34,069 psi | 53% | 2815 fps | 95.8% |
| Norma MRP | <<locked>> | 80% | 37,347 psi | 59% | 2864 fps | 97.2% |
| Norma URP | <<locked>> | 80% | 46,688 psi | 73% | 2979 fps | 100% |
| Ramshot Grand | <<locked>> | 84% | 38,870 psi | 61% | 2894 fps | 95.2% |
| Ramshot Hunter | <<locked>> | 80% | 45,571 psi | 71% | 2976 fps | 99.6% |
| Ramshot Magnum | <<locked>> | 84% | 34,766 psi | 54% | 2759 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,442 psi | 45% | 1831 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 47,674 psi | 75% | 3015 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 45,905 psi | 72% | 3038 fps | 100% |
| ReloadSwiss RS 76 | 62.6 gr | 84% | 32,445 psi | 51% | 2772 fps | 95.4% |
| ReloadSwiss RS 80 | <<locked>> | 96% | 45,484 psi | 71% | 3081 fps | 96% |
| Rottweil R 904 | <<locked>> | 80% | 41,031 psi | 64% | 2838 fps | 95.6% |
| Rottweil R 905 | <<locked>> | 80% | 39,160 psi | 61% | 2838 fps | 96.4% |
| Rottweil R 907 | <<locked>> | 80% | 50,140 psi | 79% | 2999 fps | 99.4% |
| Shooters World Long Rifle | <<locked>> | 80% | 49,037 psi | 77% | 2972 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 80% | 47,369 psi | 74% | 2963 fps | 99.4% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 47,950 psi | 75% | 2917 fps | 99.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 38,870 psi | 61% | 2835 fps | 96.3% |
| Somchem S355 | <<locked>> | 80% | 54,346 psi | 85% | 3051 fps | 100% |
| Somchem S361 | <<locked>> | 80% | 41,800 psi | 66% | 2822 fps | 95% |
| Somchem S365 | <<locked>> | 80% | 43,816 psi | 69% | 2933 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 39,726 psi | 62% | 2822 fps | 97.4% |
| Vihtavuori N150 | <<locked>> | 80% | 52,083 psi | 82% | 2969 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 48,138 psi | 75% | 2976 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 34,432 psi | 54% | 2684 fps | 95.3% |
| Vihtavuori N550 | <<locked>> | 80% | 47,529 psi | 74% | 2979 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 38,479 psi | 60% | 2835 fps | 99.7% |
| Vihtavuori N560 | <<locked>> | 84% | 43,192 psi | 68% | 2989 fps | 95.7% |
| Vihtavuori N565 | <<locked>> | 88% | 40,611 psi | 64% | 2910 fps | 95.2% |
| Vihtavuori N568 | <<locked>> | 96% | 46,688 psi | 73% | 3091 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 47,311 psi | 74% | 2930 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 49,458 psi | 78% | 3051 fps | 99.6% |
| Winchester StaBALL HD | 57.2 gr | 80% | 30,574 psi | 48% | 2776 fps | 99.9% |
| Winchester Supreme 780 | <<locked>> | 80% | 36,172 psi | 57% | 2733 fps | 95.2% |
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 72 powders for 6.5 x 63 Messner Mag. loaded with the .264 | 121gr | Lehigh Defense Match Solid. Hodgdon Retumbo delivers the highest muzzle velocity at 3,353 fps; across all powders the maximum-charge window runs from 1,995 fps to 3,353 fps. ADI AR 2217 gives the best case fill at 100 %, and 72 of the 72 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 121.0 gr projectile in 0.264" calls for a 1:8.0 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, Bofors RP30 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, Winchester StaBALL HD, ReloadSwiss RS 76 rank at the top here: for 6.5 x 63 Messner Mag. with the .264 | 121gr | Lehigh Defense Match Solid 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.