Load Specifications
Load data in caliber 6.5 x 63 R Messner Mag. with .264 | 122gr | SUS-TAC HP bullet and 73 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 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>> | 92% | 55,317 psi | 87% | 3097 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 56,072 psi | 88% | 3127 fps | 100% |
| Accurate High Country | <<locked>> | 90% | 56,768 psi | 89% | 3255 fps | 99.2% |
| Accurate MAGPRO | <<locked>> | 90% | 53,969 psi | 85% | 3196 fps | 97.9% |
| ADI AR 2209 | <<locked>> | 90% | 56,971 psi | 89% | 3192 fps | 99.7% |
| ADI AR 2213 | <<locked>> | 92% | 54,984 psi | 86% | 3196 fps | 98.9% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 53,098 psi | 83% | 3156 fps | 99% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 47,558 psi | 75% | 3114 fps | 99.9% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 57,319 psi | 90% | 3189 fps | 99.7% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 57,319 psi | 90% | 3189 fps | 99.7% |
| Alliant Reloder-16 | <<locked>> | 86% | 57,217 psi | 90% | 3189 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 90% | 56,637 psi | 89% | 3179 fps | 99.7% |
| Alliant Reloder-22 | <<locked>> | 92% | 55,201 psi | 87% | 3192 fps | 99.6% |
| Alliant Reloder-23 | <<locked>> | 94% | 56,710 psi | 89% | 3163 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 98% | 56,072 psi | 88% | 3225 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 90% | 57,188 psi | 90% | 3255 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 56,376 psi | 88% | 3153 fps | 96.8% |
| Bofors RP15 | <<locked>> | 94% | 54,404 psi | 85% | 3179 fps | 99.5% |
| Bofors RP30ᴾ | <<locked>> | 100% | 55,840 psi | 88% | 3232 fps | 99.4% |
| Bofors RP5 | <<locked>> | 92% | 55,201 psi | 87% | 3192 fps | 99.6% |
| Bofors RP7 | <<locked>> | 82% | 54,534 psi | 85% | 3071 fps | 99.8% |
| Hodgdon H1000 | <<locked>> | 98% | 54,607 psi | 86% | 3186 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 82% | 53,940 psi | 85% | 3123 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 82% | 56,507 psi | 89% | 3140 fps | 99.7% |
| Hodgdon H4831 | <<locked>> | 90% | 54,752 psi | 86% | 3130 fps | 98.4% |
| Hodgdon H4831 SC | <<locked>> | 92% | 57,377 psi | 90% | 3176 fps | 98.7% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 57,276 psi | 90% | 3100 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 55,042 psi | 86% | 3310 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 54,418 psi | 85% | 3159 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,318 psi | 58% | 1998 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 56,231 psi | 88% | 3114 fps | 99.9% |
| IMR 4451 Enduron | <<locked>> | 82% | 55,709 psi | 87% | 3094 fps | 100% |
| IMR 4831 | <<locked>> | 86% | 56,594 psi | 89% | 3120 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 55,492 psi | 87% | 3110 fps | 98.6% |
| IMR 7828 SSC | <<locked>> | 94% | 56,811 psi | 89% | 3238 fps | 99.2% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 43,091 psi | 68% | 3005 fps | 96.9% |
| Lovex S065 | <<locked>> | 84% | 56,753 psi | 89% | 3094 fps | 100% |
| Lovex S070 | <<locked>> | 84% | 54,955 psi | 86% | 3091 fps | 100% |
| Lovex S071 | <<locked>> | 98% | 56,681 psi | 89% | 3117 fps | 100% |
| Norma 204 | <<locked>> | 86% | 57,348 psi | 90% | 3173 fps | 99.6% |
| Norma 217ᴾ | <<locked>> | 100% | 43,453 psi | 68% | 3038 fps | 99% |
| Norma MRP | <<locked>> | 90% | 54,998 psi | 86% | 3212 fps | 100% |
| Norma URP | <<locked>> | 84% | 54,520 psi | 85% | 3110 fps | 100% |
| Ramshot Grand | <<locked>> | 92% | 53,548 psi | 84% | 3192 fps | 99.1% |
| Ramshot Hunter | <<locked>> | 86% | 57,014 psi | 89% | 3169 fps | 100% |
| Ramshot Magnum | <<locked>> | 96% | 56,391 psi | 88% | 3189 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,058 psi | 60% | 2044 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 56,376 psi | 88% | 3153 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 54,636 psi | 86% | 3179 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 56,028 psi | 88% | 3304 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 55,143 psi | 86% | 3251 fps | 98.4% |
| Rottweil R 904 | <<locked>> | 88% | 54,433 psi | 85% | 3100 fps | 98.8% |
| Rottweil R 905 | <<locked>> | 90% | 56,173 psi | 88% | 3169 fps | 99.7% |
| Rottweil R 907 | <<locked>> | 82% | 54,534 psi | 85% | 3071 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 84% | 56,753 psi | 89% | 3094 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 54,955 psi | 86% | 3091 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 55,898 psi | 88% | 3045 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 55,738 psi | 87% | 3163 fps | 99.6% |
| Somchem S361 | <<locked>> | 88% | 55,883 psi | 88% | 3087 fps | 98.5% |
| Somchem S365 | <<locked>> | 86% | 55,216 psi | 87% | 3110 fps | 100% |
| Somchem S385 | <<locked>> | 90% | 56,753 psi | 89% | 3140 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 82% | 56,681 psi | 89% | 3031 fps | 100% |
| Vihtavuori N160 | <<locked>> | 84% | 56,057 psi | 88% | 3097 fps | 100% |
| Vihtavuori N165 | <<locked>> | 94% | 56,318 psi | 88% | 3117 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 84% | 55,347 psi | 87% | 3104 fps | 100% |
| Vihtavuori N555 | <<locked>> | 90% | 55,027 psi | 86% | 3136 fps | 100% |
| Vihtavuori N560 | <<locked>> | 90% | 54,723 psi | 86% | 3205 fps | 98.6% |
| Vihtavuori N565 | <<locked>> | 96% | 54,911 psi | 86% | 3189 fps | 98.8% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 55,985 psi | 88% | 3255 fps | 98.1% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 55,825 psi | 87% | 3051 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 54,172 psi | 85% | 3127 fps | 99.9% |
| Winchester StaBALL HD | <<locked>> | 94% | 55,201 psi | 87% | 3251 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 56,695 psi | 89% | 3133 fps | 99.7% |
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% | 36,738 psi | 58% | 2736 fps | 98.2% |
| Accurate 4350 | <<locked>> | 80% | 48,979 psi | 77% | 3009 fps | 100% |
| Accurate High Country | <<locked>> | 80% | 40,030 psi | 63% | 2917 fps | 95.6% |
| Accurate MAGPRO | <<locked>> | 84% | 43,598 psi | 68% | 2986 fps | 95.3% |
| ADI AR 2209 | <<locked>> | 80% | 40,698 psi | 64% | 2874 fps | 96.9% |
| ADI AR 2213 | <<locked>> | 84% | 41,756 psi | 65% | 2930 fps | 95.9% |
| ADI AR 2217 | <<locked>> | 92% | 40,451 psi | 63% | 2894 fps | 95.8% |
| ADI AR 2225 | <<locked>> | 88% | 31,995 psi | 50% | 2717 fps | 95.6% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 41,133 psi | 64% | 2877 fps | 97% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 41,133 psi | 64% | 2877 fps | 97% |
| Alliant Reloder-16 | <<locked>> | 80% | 46,934 psi | 74% | 3018 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 40,756 psi | 64% | 2871 fps | 96.9% |
| Alliant Reloder-22 | <<locked>> | 80% | 36,593 psi | 57% | 2805 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 80% | 35,375 psi | 55% | 2769 fps | 99.9% |
| Alliant Reloder-25 | <<locked>> | 80% | 30,647 psi | 48% | 2671 fps | 96.8% |
| Alliant Reloder-26 | <<locked>> | 80% | 39,262 psi | 62% | 2923 fps | 99.7% |
| Baschieri & Pellagri 109 | <<locked>> | 90% | 49,705 psi | 78% | 3025 fps | 95.1% |
| Bofors RP15 | <<locked>> | 82% | 36,521 psi | 57% | 2799 fps | 95.4% |
| Bofors RP30 | <<locked>> | 88% | 37,057 psi | 58% | 2844 fps | 95% |
| Bofors RP5 | <<locked>> | 80% | 36,593 psi | 57% | 2805 fps | 95.7% |
| Bofors RP7 | <<locked>> | 80% | 51,169 psi | 80% | 3012 fps | 99.6% |
| Hodgdon H1000 | <<locked>> | 88% | 38,638 psi | 61% | 2851 fps | 95.9% |
| Hodgdon H414 | <<locked>> | 80% | 50,531 psi | 79% | 3064 fps | 99.7% |
| Hodgdon H4350 | <<locked>> | 80% | 52,779 psi | 83% | 3077 fps | 99.4% |
| Hodgdon H4831 | <<locked>> | 82% | 41,524 psi | 65% | 2867 fps | 95.1% |
| Hodgdon H4831 SC | <<locked>> | 82% | 40,930 psi | 64% | 2854 fps | 95% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 44,208 psi | 69% | 2887 fps | 100% |
| Hodgdon Retumbo | 59.6 gr | 84% | 34,287 psi | 54% | 2825 fps | 95.2% |
| Hodgdon Superformance | <<locked>> | 80% | 50,676 psi | 79% | 3094 fps | 99.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,891 psi | 44% | 1788 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 46,485 psi | 73% | 2936 fps | 99% |
| IMR 4451 Enduron | <<locked>> | 80% | 52,576 psi | 82% | 3038 fps | 99.8% |
| IMR 4831 | <<locked>> | 80% | 46,586 psi | 73% | 2953 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 40,422 psi | 63% | 2808 fps | 95% |
| IMR 7828 SSC | <<locked>> | 84% | 40,234 psi | 63% | 2907 fps | 95.5% |
| IMR 8133 Enduron | <<locked>> | 98% | 40,190 psi | 63% | 2940 fps | 96% |
| Lovex S065 | <<locked>> | 80% | 50,082 psi | 78% | 2982 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 48,414 psi | 76% | 2972 fps | 99.6% |
| Lovex S071 | <<locked>> | 80% | 31,749 psi | 50% | 2608 fps | 96.5% |
| Norma 204 | <<locked>> | 80% | 46,920 psi | 74% | 2986 fps | 98.3% |
| Norma 217 | <<locked>> | 92% | 32,953 psi | 52% | 2772 fps | 95.5% |
| Norma MRP | <<locked>> | 80% | 38,595 psi | 60% | 2884 fps | 97.8% |
| Norma URP | <<locked>> | 80% | 47,819 psi | 75% | 2995 fps | 100% |
| Ramshot Grand | <<locked>> | 84% | 40,030 psi | 63% | 2913 fps | 95.9% |
| Ramshot Hunter | <<locked>> | 80% | 46,789 psi | 73% | 2992 fps | 99.7% |
| Ramshot Magnum | <<locked>> | 82% | 33,214 psi | 52% | 2713 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,601 psi | 45% | 1831 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 49,023 psi | 77% | 3031 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 47,239 psi | 74% | 3051 fps | 100% |
| ReloadSwiss RS 76 | 63.8 gr | 84% | 33,518 psi | 53% | 2799 fps | 96.3% |
| ReloadSwiss RS 80 | <<locked>> | 94% | 43,685 psi | 68% | 3028 fps | 95.7% |
| Rottweil R 904 | <<locked>> | 80% | 41,945 psi | 66% | 2851 fps | 96.1% |
| Rottweil R 905 | <<locked>> | 80% | 40,190 psi | 63% | 2858 fps | 96.9% |
| Rottweil R 907 | <<locked>> | 80% | 51,169 psi | 80% | 3012 fps | 99.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 50,082 psi | 78% | 2982 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 48,414 psi | 76% | 2972 fps | 99.6% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 48,921 psi | 77% | 2927 fps | 99.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 39,856 psi | 62% | 2851 fps | 96.8% |
| Somchem S361 | <<locked>> | 80% | 42,786 psi | 67% | 2841 fps | 95.6% |
| Somchem S365 | <<locked>> | 80% | 45,034 psi | 71% | 2943 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 40,683 psi | 64% | 2835 fps | 97.8% |
| Vihtavuori N150 | <<locked>> | 80% | 53,171 psi | 83% | 2976 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 49,226 psi | 77% | 2986 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 35,331 psi | 55% | 2700 fps | 95.8% |
| Vihtavuori N550 | <<locked>> | 80% | 48,762 psi | 76% | 2992 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 39,624 psi | 62% | 2851 fps | 99.9% |
| Vihtavuori N560 | 60.3 gr | 82% | 41,321 psi | 65% | 2936 fps | 95.3% |
| Vihtavuori N565 | <<locked>> | 88% | 41,974 psi | 66% | 2930 fps | 95.8% |
| Vihtavuori N568 | <<locked>> | 94% | 44,918 psi | 70% | 3045 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 48,443 psi | 76% | 2940 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 50,778 psi | 80% | 3068 fps | 99.8% |
| Winchester StaBALL HD | <<locked>> | 80% | 31,821 psi | 50% | 2795 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 37,260 psi | 58% | 2753 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 73 powders for 6.5 x 63 R Messner Mag. loaded with the .264 | 122gr | SUS-TAC HP. Hodgdon Retumbo delivers the highest muzzle velocity at 3,310 fps; across all powders the maximum-charge window runs from 1,998 fps to 3,310 fps. ADI AR 2217 gives the best case fill at 100 %, and 73 of the 73 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 122.0 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, 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, ReloadSwiss RS 76, Vihtavuori N560 rank at the top here: for 6.5 x 63 R Messner Mag. with the .264 | 122gr | SUS-TAC HP 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.