Load Specifications
Load data in caliber 6.5 x 63 R Messner Mag. with .264 | 125gr | Hammer HHT bullet and 70 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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Max Load - Barrel Length: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 92% | 55,129 psi | 86% | 3061 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 56,173 psi | 88% | 3094 fps | 100% |
| Accurate MAGPRO | <<locked>> | 90% | 53,882 psi | 84% | 3159 fps | 98.1% |
| ADI AR 2209 | <<locked>> | 90% | 56,971 psi | 89% | 3156 fps | 99.7% |
| ADI AR 2213 | <<locked>> | 92% | 54,781 psi | 86% | 3159 fps | 99% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 52,866 psi | 83% | 3120 fps | 99.1% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 47,587 psi | 75% | 3081 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 86% | 57,014 psi | 89% | 3150 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 90% | 56,391 psi | 88% | 3143 fps | 99.7% |
| Alliant Reloder-22 | <<locked>> | 92% | 55,042 psi | 86% | 3159 fps | 99.7% |
| Alliant Reloder-23 | <<locked>> | 94% | 56,463 psi | 88% | 3127 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 98% | 55,985 psi | 88% | 3192 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 90% | 57,116 psi | 90% | 3222 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 56,391 psi | 88% | 3120 fps | 97% |
| Bofors RP15 | <<locked>> | 94% | 54,259 psi | 85% | 3143 fps | 99.5% |
| Bofors RP30ᴾ | <<locked>> | 100% | 55,912 psi | 88% | 3199 fps | 99.5% |
| Bofors RP5 | <<locked>> | 92% | 55,042 psi | 86% | 3159 fps | 99.7% |
| Bofors RP7 | <<locked>> | 82% | 54,549 psi | 85% | 3035 fps | 99.8% |
| Hodgdon H1000 | <<locked>> | 98% | 54,636 psi | 86% | 3153 fps | 99.6% |
| Hodgdon H414 | <<locked>> | 84% | 57,667 psi | 90% | 3150 fps | 100% |
| Hodgdon H4350 | <<locked>> | 82% | 56,318 psi | 88% | 3104 fps | 99.8% |
| Hodgdon H4831 | <<locked>> | 90% | 54,549 psi | 85% | 3094 fps | 98.4% |
| Hodgdon H4831 SC | <<locked>> | 92% | 57,232 psi | 90% | 3136 fps | 98.8% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 57,406 psi | 90% | 3068 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 55,013 psi | 86% | 3278 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 54,433 psi | 85% | 3127 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,173 psi | 58% | 1969 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 56,362 psi | 88% | 3081 fps | 99.9% |
| IMR 4451 Enduron | <<locked>> | 82% | 55,738 psi | 87% | 3058 fps | 100% |
| IMR 4831 | <<locked>> | 86% | 56,507 psi | 89% | 3084 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 55,506 psi | 87% | 3077 fps | 98.7% |
| IMR 7828 SSC | <<locked>> | 94% | 56,710 psi | 89% | 3202 fps | 99.3% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 43,033 psi | 67% | 2979 fps | 97.1% |
| Lovex S065 | <<locked>> | 84% | 56,550 psi | 89% | 3054 fps | 100% |
| Lovex S070 | <<locked>> | 84% | 55,013 psi | 86% | 3054 fps | 100% |
| Lovex S071 | <<locked>> | 98% | 56,478 psi | 89% | 3081 fps | 100% |
| Norma 204 | <<locked>> | 86% | 57,334 psi | 90% | 3136 fps | 99.7% |
| Norma 217ᴾ | <<locked>> | 100% | 43,221 psi | 68% | 3002 fps | 99.1% |
| Norma MRP | <<locked>> | 90% | 55,129 psi | 86% | 3179 fps | 100% |
| Norma URP | <<locked>> | 84% | 54,607 psi | 86% | 3074 fps | 100% |
| Ramshot Grand | <<locked>> | 92% | 53,722 psi | 84% | 3159 fps | 99.2% |
| Ramshot Hunter | <<locked>> | 86% | 57,000 psi | 89% | 3136 fps | 100% |
| Ramshot Magnum | <<locked>> | 96% | 56,202 psi | 88% | 3153 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,130 psi | 60% | 2014 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 56,333 psi | 88% | 3117 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 54,636 psi | 86% | 3146 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 55,898 psi | 88% | 3271 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 55,129 psi | 86% | 3219 fps | 98.5% |
| Rottweil R 904 | <<locked>> | 88% | 54,375 psi | 85% | 3064 fps | 98.9% |
| Rottweil R 905 | <<locked>> | 90% | 56,188 psi | 88% | 3133 fps | 99.7% |
| Rottweil R 907 | <<locked>> | 82% | 54,549 psi | 85% | 3035 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 84% | 56,550 psi | 89% | 3054 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 55,013 psi | 86% | 3054 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 55,724 psi | 87% | 3005 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 55,767 psi | 87% | 3130 fps | 99.7% |
| Somchem S361 | <<locked>> | 88% | 55,782 psi | 87% | 3051 fps | 98.6% |
| Somchem S365 | <<locked>> | 86% | 55,361 psi | 87% | 3077 fps | 100% |
| Somchem S385 | <<locked>> | 90% | 56,536 psi | 89% | 3100 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 82% | 56,681 psi | 89% | 2995 fps | 100% |
| Vihtavuori N160 | <<locked>> | 84% | 56,173 psi | 88% | 3064 fps | 100% |
| Vihtavuori N165 | <<locked>> | 94% | 56,217 psi | 88% | 3081 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 84% | 55,492 psi | 87% | 3071 fps | 100% |
| Vihtavuori N555 | <<locked>> | 90% | 54,998 psi | 86% | 3100 fps | 100% |
| Vihtavuori N560 | <<locked>> | 90% | 54,853 psi | 86% | 3176 fps | 98.7% |
| Vihtavuori N565 | <<locked>> | 96% | 54,911 psi | 86% | 3156 fps | 98.9% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 55,912 psi | 88% | 3222 fps | 98.2% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 55,608 psi | 87% | 3015 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 54,259 psi | 85% | 3097 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 94% | 54,781 psi | 86% | 3212 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 56,536 psi | 89% | 3097 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% | 36,724 psi | 58% | 2710 fps | 98.3% |
| Accurate 4350 | <<locked>> | 80% | 48,965 psi | 77% | 2976 fps | 100% |
| Accurate MAGPRO | <<locked>> | 84% | 43,569 psi | 68% | 2956 fps | 95.5% |
| ADI AR 2209 | <<locked>> | 80% | 40,698 psi | 64% | 2844 fps | 97.1% |
| ADI AR 2213 | <<locked>> | 82% | 38,928 psi | 61% | 2831 fps | 95.1% |
| ADI AR 2217 | <<locked>> | 90% | 37,797 psi | 59% | 2799 fps | 95% |
| ADI AR 2225 | <<locked>> | 88% | 31,937 psi | 50% | 2690 fps | 95.9% |
| Alliant Reloder-16 | <<locked>> | 80% | 46,905 psi | 74% | 2982 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 40,741 psi | 64% | 2841 fps | 97.1% |
| Alliant Reloder-22 | <<locked>> | 80% | 36,622 psi | 57% | 2776 fps | 95.9% |
| Alliant Reloder-23 | <<locked>> | 80% | 35,317 psi | 55% | 2736 fps | 99.9% |
| Alliant Reloder-25 | <<locked>> | 80% | 30,632 psi | 48% | 2644 fps | 97% |
| Alliant Reloder-26 | <<locked>> | 80% | 39,175 psi | 61% | 2894 fps | 99.7% |
| Baschieri & Pellagri 109 | <<locked>> | 90% | 49,647 psi | 78% | 2995 fps | 95.3% |
| Bofors RP15 | <<locked>> | 82% | 36,521 psi | 57% | 2772 fps | 95.7% |
| Bofors RP30 | <<locked>> | 88% | 37,028 psi | 58% | 2815 fps | 95.2% |
| Bofors RP5 | <<locked>> | 80% | 36,622 psi | 57% | 2776 fps | 95.9% |
| Bofors RP7 | <<locked>> | 80% | 51,126 psi | 80% | 2976 fps | 99.6% |
| Hodgdon H1000 | <<locked>> | 86% | 36,085 psi | 57% | 2756 fps | 95% |
| Hodgdon H414 | <<locked>> | 80% | 50,589 psi | 79% | 3031 fps | 99.8% |
| Hodgdon H4350 | <<locked>> | 80% | 52,808 psi | 83% | 3045 fps | 99.5% |
| Hodgdon H4831 | <<locked>> | 82% | 41,568 psi | 65% | 2841 fps | 95.4% |
| Hodgdon H4831 SC | <<locked>> | 82% | 40,785 psi | 64% | 2822 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 44,150 psi | 69% | 2854 fps | 100% |
| Hodgdon Retumbo | 58.5 gr | 84% | 34,185 psi | 54% | 2795 fps | 95.4% |
| Hodgdon Superformance | <<locked>> | 80% | 50,444 psi | 79% | 3058 fps | 99.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,963 psi | 44% | 1762 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 46,470 psi | 73% | 2907 fps | 99.1% |
| IMR 4451 Enduron | <<locked>> | 80% | 52,533 psi | 82% | 3002 fps | 99.9% |
| IMR 4831 | <<locked>> | 80% | 46,543 psi | 73% | 2917 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 40,393 psi | 63% | 2779 fps | 95.2% |
| IMR 7828 SSC | <<locked>> | 84% | 40,118 psi | 63% | 2871 fps | 95.7% |
| IMR 8133 Enduron | <<locked>> | 96% | 37,623 psi | 59% | 2848 fps | 95.2% |
| Lovex S065 | <<locked>> | 80% | 49,995 psi | 78% | 2946 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 48,370 psi | 76% | 2940 fps | 99.7% |
| Lovex S071 | <<locked>> | 80% | 31,662 psi | 50% | 2579 fps | 96.7% |
| Norma 204 | <<locked>> | 80% | 46,760 psi | 73% | 2949 fps | 98.4% |
| Norma 217 | <<locked>> | 92% | 32,953 psi | 52% | 2746 fps | 95.7% |
| Norma MRP | <<locked>> | 80% | 38,464 psi | 60% | 2851 fps | 97.9% |
| Norma URP | <<locked>> | 80% | 47,790 psi | 75% | 2959 fps | 100% |
| Ramshot Grand | <<locked>> | 82% | 37,231 psi | 58% | 2815 fps | 95% |
| Ramshot Hunter | <<locked>> | 80% | 46,630 psi | 73% | 2956 fps | 99.8% |
| Ramshot Magnum | <<locked>> | 82% | 33,301 psi | 52% | 2687 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,514 psi | 45% | 1801 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 49,095 psi | 77% | 2999 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 47,108 psi | 74% | 3015 fps | 100% |
| ReloadSwiss RS 76 | 61.1 gr | 82% | 31,053 psi | 49% | 2694 fps | 95.1% |
| ReloadSwiss RS 80 | <<locked>> | 94% | 43,540 psi | 68% | 2999 fps | 95.8% |
| Rottweil R 904 | <<locked>> | 80% | 41,901 psi | 66% | 2822 fps | 96.3% |
| Rottweil R 905 | <<locked>> | 80% | 40,161 psi | 63% | 2825 fps | 97.1% |
| Rottweil R 907 | <<locked>> | 80% | 51,126 psi | 80% | 2976 fps | 99.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 49,995 psi | 78% | 2946 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 48,370 psi | 76% | 2940 fps | 99.7% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 48,921 psi | 77% | 2894 fps | 99.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 39,827 psi | 62% | 2818 fps | 97% |
| Somchem S361 | <<locked>> | 80% | 42,714 psi | 67% | 2808 fps | 95.7% |
| Somchem S365 | <<locked>> | 80% | 45,005 psi | 71% | 2910 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 40,698 psi | 64% | 2805 fps | 98% |
| Vihtavuori N150 | <<locked>> | 80% | 53,113 psi | 83% | 2943 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 49,211 psi | 77% | 2953 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 35,317 psi | 55% | 2671 fps | 96% |
| Vihtavuori N550 | <<locked>> | 80% | 48,559 psi | 76% | 2956 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 39,552 psi | 62% | 2818 fps | 99.9% |
| Vihtavuori N560 | <<locked>> | 82% | 41,437 psi | 65% | 2907 fps | 95.5% |
| Vihtavuori N565 | <<locked>> | 86% | 39,015 psi | 61% | 2835 fps | 95% |
| Vihtavuori N568 | <<locked>> | 94% | 44,918 psi | 70% | 3015 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 48,385 psi | 76% | 2904 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 50,589 psi | 79% | 3031 fps | 99.8% |
| Winchester StaBALL HD | 57.2 gr | 80% | 31,647 psi | 50% | 2766 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 37,275 psi | 58% | 2726 fps | 96.1% |
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 70 powders for 6.5 x 63 R Messner Mag. loaded with the .264 | 125gr | Hammer HHT. Hodgdon Retumbo delivers the highest muzzle velocity at 3,278 fps; across all powders the maximum-charge window runs from 1,969 fps to 3,278 fps. ADI AR 2217 gives the best case fill at 100 %, and 70 of the 70 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 125.0 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 R Messner Mag. with the .264 | 125gr | Hammer HHT 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.