Load Specifications
Load data in caliber 6.5 x 63 Messner Mag. with .264 | 120gr | Prvi Partizan HPBT 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 Ramshot Grand.
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% | 56,115 psi | 88% | 3133 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 56,869 psi | 89% | 3166 fps | 100% |
| Accurate High Country | <<locked>> | 88% | 53,940 psi | 85% | 3232 fps | 98.9% |
| Accurate MAGPRO | <<locked>> | 90% | 54,665 psi | 86% | 3232 fps | 98% |
| ADI AR 2209 | <<locked>> | 88% | 53,911 psi | 84% | 3166 fps | 99.4% |
| ADI AR 2213 | <<locked>> | 92% | 55,709 psi | 87% | 3235 fps | 99% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 53,867 psi | 84% | 3196 fps | 99.1% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 48,225 psi | 76% | 3150 fps | 99.9% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 54,288 psi | 85% | 3163 fps | 99.4% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 54,288 psi | 85% | 3163 fps | 99.4% |
| Alliant Reloder-16 | <<locked>> | 86% | 57,711 psi | 90% | 3225 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 90% | 57,159 psi | 90% | 3215 fps | 99.7% |
| Alliant Reloder-22 | <<locked>> | 92% | 55,941 psi | 88% | 3232 fps | 99.7% |
| Alliant Reloder-23 | <<locked>> | 94% | 57,276 psi | 90% | 3196 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 98% | 57,000 psi | 89% | 3268 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 88% | 54,186 psi | 85% | 3235 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 56,985 psi | 89% | 3189 fps | 96.9% |
| Bofors RP15 | <<locked>> | 94% | 55,129 psi | 86% | 3215 fps | 99.5% |
| Bofors RP30ᴾ | <<locked>> | 100% | 56,739 psi | 89% | 3268 fps | 99.5% |
| Bofors RP5 | <<locked>> | 92% | 55,941 psi | 88% | 3232 fps | 99.7% |
| Bofors RP7 | <<locked>> | 82% | 55,042 psi | 86% | 3107 fps | 99.8% |
| Hodgdon H1000 | <<locked>> | 98% | 55,405 psi | 87% | 3222 fps | 99.6% |
| Hodgdon H414 | <<locked>> | 82% | 54,636 psi | 86% | 3163 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 82% | 56,985 psi | 89% | 3176 fps | 99.7% |
| Hodgdon H4831 | <<locked>> | 90% | 55,477 psi | 87% | 3169 fps | 98.4% |
| Hodgdon H4831 SC | <<locked>> | 90% | 54,201 psi | 85% | 3146 fps | 98.2% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 54,346 psi | 85% | 3084 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 55,941 psi | 88% | 3350 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 55,245 psi | 87% | 3199 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,260 psi | 58% | 2024 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 56,826 psi | 89% | 3150 fps | 99.9% |
| IMR 4451 Enduron | <<locked>> | 82% | 56,449 psi | 88% | 3133 fps | 100% |
| IMR 4831 | <<locked>> | 86% | 57,029 psi | 89% | 3153 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 56,217 psi | 88% | 3150 fps | 98.7% |
| IMR 7828 SSC | <<locked>> | 94% | 57,580 psi | 90% | 3278 fps | 99.3% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 43,845 psi | 69% | 3045 fps | 97.1% |
| Lovex S065 | <<locked>> | 84% | 57,232 psi | 90% | 3130 fps | 100% |
| Lovex S070 | <<locked>> | 84% | 55,434 psi | 87% | 3123 fps | 100% |
| Lovex S071 | <<locked>> | 98% | 57,421 psi | 90% | 3156 fps | 100% |
| Norma 204 | <<locked>> | 84% | 54,375 psi | 85% | 3150 fps | 99.3% |
| Norma 217ᴾ | <<locked>> | 100% | 44,063 psi | 69% | 3074 fps | 99% |
| Norma MRP | <<locked>> | 90% | 56,043 psi | 88% | 3255 fps | 100% |
| Norma URP | <<locked>> | 84% | 55,027 psi | 86% | 3143 fps | 100% |
| Ramshot Grand | <<locked>> | 92% | 54,549 psi | 85% | 3235 fps | 99.2% |
| Ramshot Hunter | <<locked>> | 84% | 54,143 psi | 85% | 3150 fps | 100% |
| Ramshot Magnum | <<locked>> | 96% | 57,232 psi | 90% | 3225 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,174 psi | 60% | 2070 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 56,985 psi | 89% | 3189 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 55,506 psi | 87% | 3219 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 57,014 psi | 89% | 3346 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 56,391 psi | 88% | 3294 fps | 98.6% |
| Rottweil R 904 | <<locked>> | 88% | 55,042 psi | 86% | 3136 fps | 98.9% |
| Rottweil R 905 | <<locked>> | 90% | 56,753 psi | 89% | 3202 fps | 99.7% |
| Rottweil R 907 | <<locked>> | 82% | 55,042 psi | 86% | 3107 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 84% | 57,232 psi | 90% | 3130 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 55,434 psi | 87% | 3123 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 56,231 psi | 88% | 3077 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 56,362 psi | 88% | 3202 fps | 99.7% |
| Somchem S361 | <<locked>> | 88% | 56,521 psi | 89% | 3123 fps | 98.6% |
| Somchem S365 | <<locked>> | 86% | 55,985 psi | 88% | 3146 fps | 100% |
| Somchem S385 | <<locked>> | 90% | 57,261 psi | 90% | 3173 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 82% | 57,203 psi | 90% | 3064 fps | 100% |
| Vihtavuori N160 | <<locked>> | 84% | 56,782 psi | 89% | 3136 fps | 100% |
| Vihtavuori N165 | <<locked>> | 94% | 57,029 psi | 89% | 3153 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 84% | 55,999 psi | 88% | 3140 fps | 100% |
| Vihtavuori N555 | <<locked>> | 90% | 55,898 psi | 88% | 3176 fps | 100% |
| Vihtavuori N560 | <<locked>> | 90% | 55,709 psi | 87% | 3251 fps | 98.7% |
| Vihtavuori N565 | <<locked>> | 96% | 55,767 psi | 87% | 3225 fps | 98.9% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 56,985 psi | 89% | 3297 fps | 98.2% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 56,347 psi | 88% | 3084 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 54,882 psi | 86% | 3166 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 94% | 56,072 psi | 88% | 3284 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 57,348 psi | 90% | 3169 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% | 37,246 psi | 58% | 2769 fps | 98.3% |
| Accurate 4350 | <<locked>> | 80% | 49,588 psi | 78% | 3045 fps | 100% |
| Accurate High Country | <<locked>> | 80% | 40,466 psi | 63% | 2949 fps | 95.6% |
| Accurate MAGPRO | <<locked>> | 84% | 44,121 psi | 69% | 3018 fps | 95.4% |
| ADI AR 2209 | <<locked>> | 80% | 41,220 psi | 65% | 2910 fps | 97% |
| ADI AR 2213 | <<locked>> | 82% | 39,450 psi | 62% | 2897 fps | 95% |
| ADI AR 2217 | <<locked>> | 92% | 41,060 psi | 64% | 2930 fps | 96% |
| ADI AR 2225 | <<locked>> | 88% | 32,372 psi | 51% | 2749 fps | 95.7% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 41,640 psi | 65% | 2913 fps | 97.1% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 41,640 psi | 65% | 2913 fps | 97.1% |
| Alliant Reloder-16 | <<locked>> | 80% | 47,369 psi | 74% | 3051 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 41,249 psi | 65% | 2904 fps | 97% |
| Alliant Reloder-22 | <<locked>> | 80% | 37,101 psi | 58% | 2838 fps | 95.8% |
| Alliant Reloder-23 | <<locked>> | 80% | 35,926 psi | 56% | 2802 fps | 99.9% |
| Alliant Reloder-25 | <<locked>> | 80% | 31,067 psi | 49% | 2703 fps | 96.9% |
| Alliant Reloder-26 | <<locked>> | 80% | 39,755 psi | 62% | 2959 fps | 99.7% |
| Baschieri & Pellagri 109 | <<locked>> | 90% | 50,386 psi | 79% | 3064 fps | 95.3% |
| Bofors RP15 | <<locked>> | 82% | 36,970 psi | 58% | 2835 fps | 95.5% |
| Bofors RP30 | <<locked>> | 88% | 37,623 psi | 59% | 2877 fps | 95.1% |
| Bofors RP5 | <<locked>> | 80% | 37,101 psi | 58% | 2838 fps | 95.8% |
| Bofors RP7 | <<locked>> | 80% | 51,706 psi | 81% | 3048 fps | 99.6% |
| Hodgdon H1000 | <<locked>> | 88% | 39,088 psi | 61% | 2887 fps | 96% |
| Hodgdon H414 | <<locked>> | 80% | 51,068 psi | 80% | 3100 fps | 99.8% |
| Hodgdon H4350 | <<locked>> | 80% | 53,301 psi | 84% | 3114 fps | 99.4% |
| Hodgdon H4831 | <<locked>> | 82% | 42,119 psi | 66% | 2907 fps | 95.3% |
| Hodgdon H4831 SC | <<locked>> | 82% | 41,365 psi | 65% | 2890 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 44,614 psi | 70% | 2920 fps | 100% |
| Hodgdon Retumbo | 60.9 gr | 84% | 34,635 psi | 54% | 2854 fps | 95.3% |
| Hodgdon Superformance | <<locked>> | 80% | 51,271 psi | 80% | 3130 fps | 99.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,847 psi | 44% | 1808 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 47,007 psi | 74% | 2972 fps | 99.1% |
| IMR 4451 Enduron | <<locked>> | 80% | 52,866 psi | 83% | 3071 fps | 99.8% |
| IMR 4831 | <<locked>> | 80% | 46,920 psi | 74% | 2982 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 40,843 psi | 64% | 2844 fps | 95.1% |
| IMR 7828 SSC | <<locked>> | 84% | 40,799 psi | 64% | 2943 fps | 95.6% |
| IMR 8133 Enduron | <<locked>> | 96% | 38,319 psi | 60% | 2913 fps | 95.2% |
| Lovex S065 | <<locked>> | 80% | 50,618 psi | 79% | 3018 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 48,950 psi | 77% | 3009 fps | 99.7% |
| Lovex S071 | <<locked>> | 80% | 32,097 psi | 50% | 2638 fps | 96.6% |
| Norma 204 | <<locked>> | 80% | 47,369 psi | 74% | 3018 fps | 98.3% |
| Norma 217 | <<locked>> | 92% | 33,591 psi | 53% | 2808 fps | 95.7% |
| Norma MRP | <<locked>> | 80% | 39,059 psi | 61% | 2917 fps | 97.8% |
| Norma URP | <<locked>> | 80% | 48,414 psi | 76% | 3028 fps | 100% |
| Ramshot Grand | 62.7 gr | 84% | 40,582 psi | 64% | 2949 fps | 96% |
| Ramshot Hunter | <<locked>> | 80% | 47,268 psi | 74% | 3025 fps | 99.8% |
| Ramshot Magnum | <<locked>> | 82% | 33,707 psi | 53% | 2746 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,543 psi | 45% | 1854 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 49,719 psi | 78% | 3068 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 47,906 psi | 75% | 3087 fps | 100% |
| ReloadSwiss RS 76 | 63.7 gr | 82% | 31,633 psi | 50% | 2756 fps | 95.1% |
| ReloadSwiss RS 80 | <<locked>> | 94% | 44,643 psi | 70% | 3071 fps | 95.9% |
| Rottweil R 904 | <<locked>> | 80% | 42,453 psi | 67% | 2890 fps | 96.2% |
| Rottweil R 905 | <<locked>> | 80% | 40,712 psi | 64% | 2890 fps | 97% |
| Rottweil R 907 | <<locked>> | 80% | 51,706 psi | 81% | 3048 fps | 99.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 50,618 psi | 79% | 3018 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 48,950 psi | 77% | 3009 fps | 99.7% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 49,385 psi | 77% | 2959 fps | 99.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 40,379 psi | 63% | 2887 fps | 96.9% |
| Somchem S361 | <<locked>> | 80% | 43,323 psi | 68% | 2874 fps | 95.7% |
| Somchem S365 | <<locked>> | 80% | 45,643 psi | 72% | 2979 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 41,162 psi | 65% | 2871 fps | 97.9% |
| Vihtavuori N150 | <<locked>> | 80% | 53,708 psi | 84% | 3012 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 49,777 psi | 78% | 3022 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 35,766 psi | 56% | 2733 fps | 95.9% |
| Vihtavuori N550 | <<locked>> | 80% | 49,226 psi | 77% | 3028 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 40,176 psi | 63% | 2884 fps | 99.9% |
| Vihtavuori N560 | <<locked>> | 82% | 41,945 psi | 66% | 2972 fps | 95.4% |
| Vihtavuori N565 | <<locked>> | 88% | 42,467 psi | 67% | 2966 fps | 95.9% |
| Vihtavuori N568 | <<locked>> | 94% | 45,701 psi | 72% | 3084 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 49,052 psi | 77% | 2972 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 51,271 psi | 80% | 3100 fps | 99.8% |
| Winchester StaBALL HD | <<locked>> | 80% | 32,372 psi | 51% | 2828 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 37,681 psi | 59% | 2785 fps | 96% |
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 Messner Mag. loaded with the .264 | 120gr | Prvi Partizan HPBT. Hodgdon Retumbo delivers the highest muzzle velocity at 3,350 fps; across all powders the maximum-charge window runs from 2,024 fps to 3,350 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 120.0 gr projectile in 0.264" calls for a 1:10.0 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, Ramshot Grand rank at the top here: for 6.5 x 63 Messner Mag. with the .264 | 120gr | Prvi Partizan HPBT 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.