Load Specifications
Load data in caliber 6.5 x 63 R Messner Mag. with .264 | 120gr | Frontier BTSP bullet and 72 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Accurate High Country, Hodgdon Retumbo and Winchester StaBALL HD.
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% | 54,230 psi | 85% | 3100 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 55,187 psi | 86% | 3136 fps | 100% |
| Accurate High Country | <<locked>> | 90% | 55,593 psi | 87% | 3258 fps | 99% |
| Accurate MAGPRO | <<locked>> | 92% | 56,536 psi | 89% | 3261 fps | 98.2% |
| ADI AR 2209 | <<locked>> | 90% | 55,869 psi | 88% | 3196 fps | 99.5% |
| ADI AR 2213 | <<locked>> | 94% | 57,711 psi | 90% | 3264 fps | 99.1% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 51,851 psi | 81% | 3153 fps | 98.6% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 46,557 psi | 73% | 3114 fps | 99.8% |
| Alliant Reloder-16 | <<locked>> | 86% | 56,028 psi | 88% | 3196 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 57,232 psi | 90% | 3209 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 90% | 55,593 psi | 87% | 3182 fps | 99.5% |
| Alliant Reloder-22 | <<locked>> | 92% | 54,114 psi | 85% | 3196 fps | 99.4% |
| Alliant Reloder-23 | <<locked>> | 94% | 55,274 psi | 87% | 3166 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 98% | 54,853 psi | 86% | 3232 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 90% | 55,898 psi | 88% | 3258 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 55,564 psi | 87% | 3153 fps | 96.4% |
| Bofors RP15 | <<locked>> | 96% | 56,710 psi | 89% | 3238 fps | 99.6% |
| Bofors RP30ᴾ | <<locked>> | 100% | 54,694 psi | 86% | 3232 fps | 99.2% |
| Bofors RP5 | <<locked>> | 92% | 54,114 psi | 85% | 3196 fps | 99.4% |
| Bofors RP7 | <<locked>> | 84% | 57,145 psi | 90% | 3133 fps | 99.9% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 57,392 psi | 90% | 3251 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 84% | 56,695 psi | 89% | 3192 fps | 100% |
| Hodgdon H4350 | <<locked>> | 82% | 55,521 psi | 87% | 3143 fps | 99.6% |
| Hodgdon H4831 | <<locked>> | 92% | 57,435 psi | 90% | 3196 fps | 98.6% |
| Hodgdon H4831 SC | <<locked>> | 92% | 56,362 psi | 88% | 3179 fps | 98.4% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 56,391 psi | 88% | 3110 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 57,667 psi | 90% | 3376 fps | 100% |
| Hodgdon Superformance | <<locked>> | 84% | 57,537 psi | 90% | 3232 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,159 psi | 58% | 2008 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 55,245 psi | 87% | 3117 fps | 99.8% |
| IMR 4451 Enduron | <<locked>> | 82% | 55,027 psi | 86% | 3100 fps | 99.9% |
| IMR 4831 | <<locked>> | 86% | 55,506 psi | 87% | 3127 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 54,563 psi | 86% | 3114 fps | 98.3% |
| IMR 7828 SSC | <<locked>> | 94% | 55,680 psi | 87% | 3241 fps | 98.9% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 42,047 psi | 66% | 3002 fps | 96.4% |
| Lovex S065 | <<locked>> | 84% | 55,782 psi | 87% | 3100 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 57,508 psi | 90% | 3153 fps | 100% |
| Lovex S071 | <<locked>> | 98% | 55,259 psi | 87% | 3117 fps | 100% |
| Norma 204 | <<locked>> | 86% | 56,304 psi | 88% | 3179 fps | 99.4% |
| Norma 217ᴾ | <<locked>> | 100% | 42,134 psi | 66% | 3028 fps | 98.5% |
| Norma MRP | <<locked>> | 90% | 53,867 psi | 84% | 3215 fps | 99.9% |
| Norma URP | <<locked>> | 86% | 57,087 psi | 89% | 3173 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 56,536 psi | 89% | 3264 fps | 99.3% |
| Ramshot Hunter | <<locked>> | 86% | 55,956 psi | 88% | 3176 fps | 100% |
| Ramshot Magnum | <<locked>> | 96% | 54,897 psi | 86% | 3186 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,087 psi | 60% | 2057 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 55,245 psi | 87% | 3156 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 57,537 psi | 90% | 3248 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 54,549 psi | 85% | 3304 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 53,577 psi | 84% | 3248 fps | 98% |
| Rottweil R 904 | <<locked>> | 90% | 57,058 psi | 89% | 3163 fps | 99% |
| Rottweil R 905 | <<locked>> | 90% | 55,085 psi | 86% | 3173 fps | 99.5% |
| Rottweil R 907 | <<locked>> | 84% | 57,145 psi | 90% | 3133 fps | 99.9% |
| Shooters World Long Rifle | <<locked>> | 84% | 55,782 psi | 87% | 3100 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 57,508 psi | 90% | 3153 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 54,911 psi | 86% | 3048 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 54,650 psi | 86% | 3166 fps | 99.5% |
| Somchem S361 | <<locked>> | 88% | 54,984 psi | 86% | 3091 fps | 98.2% |
| Somchem S365 | <<locked>> | 86% | 54,041 psi | 85% | 3117 fps | 100% |
| Somchem S385 | <<locked>> | 90% | 55,709 psi | 87% | 3143 fps | 99.8% |
| Vihtavuori N150 | <<locked>> | 82% | 55,695 psi | 87% | 3038 fps | 100% |
| Vihtavuori N160 | <<locked>> | 84% | 55,274 psi | 87% | 3107 fps | 100% |
| Vihtavuori N165 | <<locked>> | 94% | 55,274 psi | 87% | 3120 fps | 99.7% |
| Vihtavuori N550 | <<locked>> | 84% | 54,331 psi | 85% | 3110 fps | 100% |
| Vihtavuori N555 | <<locked>> | 92% | 57,522 psi | 90% | 3196 fps | 100% |
| Vihtavuori N560 | <<locked>> | 92% | 57,551 psi | 90% | 3278 fps | 98.8% |
| Vihtavuori N565 | <<locked>> | 98% | 57,479 psi | 90% | 3255 fps | 99% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 54,505 psi | 85% | 3251 fps | 97.6% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 54,592 psi | 86% | 3054 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 56,927 psi | 89% | 3196 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 94% | 53,461 psi | 84% | 3251 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 55,376 psi | 87% | 3133 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% | 36,071 psi | 57% | 2743 fps | 97.8% |
| Accurate 4350 | <<locked>> | 80% | 48,153 psi | 75% | 3015 fps | 100% |
| Accurate High Country | 60 gr | 82% | 42,032 psi | 66% | 2986 fps | 96% |
| Accurate MAGPRO | <<locked>> | 86% | 45,803 psi | 72% | 3054 fps | 95.8% |
| ADI AR 2209 | <<locked>> | 80% | 40,045 psi | 63% | 2877 fps | 96.5% |
| ADI AR 2213 | <<locked>> | 84% | 40,901 psi | 64% | 2927 fps | 95.3% |
| ADI AR 2217 | <<locked>> | 92% | 39,624 psi | 62% | 2890 fps | 95.2% |
| ADI AR 2225 | <<locked>> | 90% | 33,373 psi | 52% | 2779 fps | 96.1% |
| Alliant Reloder-16 | <<locked>> | 80% | 45,890 psi | 72% | 3018 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 53,243 psi | 83% | 3146 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 40,089 psi | 63% | 2871 fps | 96.5% |
| Alliant Reloder-22 | <<locked>> | 80% | 35,911 psi | 56% | 2805 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 80% | 34,490 psi | 54% | 2766 fps | 99.8% |
| Alliant Reloder-25 | <<locked>> | 80% | 30,081 psi | 47% | 2671 fps | 96.3% |
| Alliant Reloder-26 | <<locked>> | 80% | 38,218 psi | 60% | 2923 fps | 99.4% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 52,156 psi | 82% | 3091 fps | 95.6% |
| Bofors RP15 | <<locked>> | 84% | 38,159 psi | 60% | 2864 fps | 95.9% |
| Bofors RP30 | <<locked>> | 90% | 38,769 psi | 61% | 2907 fps | 95.4% |
| Bofors RP5 | <<locked>> | 80% | 35,911 psi | 56% | 2805 fps | 95.1% |
| Bofors RP7 | <<locked>> | 80% | 50,270 psi | 79% | 3015 fps | 99.4% |
| Hodgdon H1000 | <<locked>> | 88% | 37,840 psi | 59% | 2848 fps | 95.2% |
| Hodgdon H414 | <<locked>> | 80% | 49,545 psi | 78% | 3064 fps | 99.6% |
| Hodgdon H4350 | <<locked>> | 80% | 52,040 psi | 82% | 3084 fps | 99.2% |
| Hodgdon H4831 | <<locked>> | 84% | 43,729 psi | 69% | 2936 fps | 95.6% |
| Hodgdon H4831 SC | <<locked>> | 84% | 42,902 psi | 67% | 2920 fps | 95.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 43,250 psi | 68% | 2890 fps | 100% |
| Hodgdon Retumbo | 60.6 gr | 86% | 35,824 psi | 56% | 2890 fps | 95.7% |
| Hodgdon Superformance | <<locked>> | 80% | 49,617 psi | 78% | 3097 fps | 99.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,862 psi | 44% | 1801 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 45,818 psi | 72% | 2943 fps | 98.8% |
| IMR 4451 Enduron | <<locked>> | 80% | 51,677 psi | 81% | 3041 fps | 99.7% |
| IMR 4831 | <<locked>> | 80% | 45,585 psi | 71% | 2953 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 82% | 42,482 psi | 67% | 2874 fps | 95.4% |
| IMR 7828 SSC | <<locked>> | 86% | 42,119 psi | 66% | 2969 fps | 95.9% |
| IMR 8133 Enduron | <<locked>> | 98% | 39,233 psi | 61% | 2936 fps | 95.4% |
| Lovex S065 | <<locked>> | 80% | 49,139 psi | 77% | 2986 fps | 99.9% |
| Lovex S070 | <<locked>> | 80% | 47,718 psi | 75% | 2979 fps | 99.5% |
| Lovex S071 | <<locked>> | 80% | 30,951 psi | 49% | 2605 fps | 96% |
| Norma 204 | <<locked>> | 80% | 45,992 psi | 72% | 2986 fps | 97.9% |
| Norma 217 | <<locked>> | 94% | 34,403 psi | 54% | 2835 fps | 95.9% |
| Norma MRP | <<locked>> | 80% | 37,637 psi | 59% | 2881 fps | 97.3% |
| Norma URP | <<locked>> | 80% | 47,065 psi | 74% | 3002 fps | 100% |
| Ramshot Grand | <<locked>> | 84% | 39,102 psi | 61% | 2910 fps | 95.2% |
| Ramshot Hunter | <<locked>> | 80% | 45,861 psi | 72% | 2995 fps | 99.6% |
| Ramshot Magnum | <<locked>> | 84% | 34,940 psi | 55% | 2776 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,572 psi | 45% | 1844 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 47,950 psi | 75% | 3035 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 46,180 psi | 72% | 3054 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 84% | 32,605 psi | 51% | 2785 fps | 95.4% |
| ReloadSwiss RS 80 | <<locked>> | 94% | 42,641 psi | 67% | 3025 fps | 95% |
| Rottweil R 904 | <<locked>> | 80% | 41,307 psi | 65% | 2858 fps | 95.7% |
| Rottweil R 905 | <<locked>> | 80% | 39,291 psi | 62% | 2854 fps | 96.5% |
| Rottweil R 907 | <<locked>> | 80% | 50,270 psi | 79% | 3015 fps | 99.4% |
| Shooters World Long Rifle | <<locked>> | 80% | 49,139 psi | 77% | 2986 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 80% | 47,718 psi | 75% | 2979 fps | 99.5% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 48,254 psi | 76% | 2933 fps | 99.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 38,986 psi | 61% | 2848 fps | 96.3% |
| Somchem S361 | <<locked>> | 80% | 42,018 psi | 66% | 2841 fps | 95.1% |
| Somchem S365 | <<locked>> | 80% | 44,208 psi | 69% | 2953 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 40,016 psi | 63% | 2838 fps | 97.5% |
| Vihtavuori N150 | <<locked>> | 80% | 52,431 psi | 82% | 2989 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 48,457 psi | 76% | 2992 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 34,693 psi | 54% | 2700 fps | 95.3% |
| Vihtavuori N550 | <<locked>> | 80% | 47,834 psi | 75% | 2995 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 38,812 psi | 61% | 2854 fps | 99.7% |
| Vihtavuori N560 | <<locked>> | 84% | 43,439 psi | 68% | 3002 fps | 95.7% |
| Vihtavuori N565 | <<locked>> | 88% | 40,785 psi | 64% | 2923 fps | 95.2% |
| Vihtavuori N568 | <<locked>> | 96% | 47,253 psi | 74% | 3114 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 47,558 psi | 75% | 2946 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 49,763 psi | 78% | 3071 fps | 99.6% |
| Winchester StaBALL HD | 57.9 gr | 80% | 30,821 psi | 48% | 2792 fps | 99.9% |
| Winchester Supreme 780 | <<locked>> | 80% | 36,448 psi | 57% | 2753 fps | 95.3% |
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 R Messner Mag. loaded with the .264 | 120gr | Frontier BTSP. Hodgdon Retumbo delivers the highest muzzle velocity at 3,376 fps; across all powders the maximum-charge window runs from 2,008 fps to 3,376 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 120.0 gr projectile in 0.264" calls for a 1:8.5 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. Accurate High Country, Hodgdon Retumbo, Winchester StaBALL HD rank at the top here: for 6.5 x 63 R Messner Mag. with the .264 | 120gr | Frontier BTSP 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.