Load Specifications
Load data in caliber 6.5-300 Weatherby Mag. with .264 | 130gr | Reichenberg Spezial Jagd bullet and 50 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ADI AR 2218, Vihtavuori N570 and Hodgdon Retumbo.
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: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 84% | 55,463 psi | 85% | 2995 fps | 100% |
| Accurate 8700ᴾ | <<locked>> | 100% | 51,126 psi | 79% | 3012 fps | 96.4% |
| Accurate High Country | <<locked>> | 82% | 57,377 psi | 88% | 3153 fps | 99.8% |
| Accurate MAGPRO | <<locked>> | 84% | 58,450 psi | 90% | 3163 fps | 99.5% |
| ADI AR 2209 | <<locked>> | 82% | 56,246 psi | 87% | 3081 fps | 100% |
| ADI AR 2213 | <<locked>> | 84% | 55,143 psi | 85% | 3097 fps | 99.7% |
| ADI AR 2217 | <<locked>> | 94% | 58,523 psi | 90% | 3143 fps | 100% |
| ADI AR 2218 | <<locked>> | 96% | 55,143 psi | 85% | 3199 fps | 98.1% |
| ADI AR 2225 | <<locked>> | 96% | 58,059 psi | 89% | 3163 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 82% | 55,927 psi | 86% | 3071 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 84% | 55,753 psi | 86% | 3094 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 86% | 57,725 psi | 89% | 3054 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 90% | 58,537 psi | 90% | 3130 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 94% | 57,188 psi | 88% | 3176 fps | 98.2% |
| Alliant Reloder-50 | <<locked>> | 98% | 57,450 psi | 88% | 3169 fps | 97.8% |
| Baschieri & Pellagri 109 | <<locked>> | 86% | 55,303 psi | 85% | 3051 fps | 98.1% |
| Bofors RP15 | <<locked>> | 86% | 55,216 psi | 85% | 3081 fps | 100% |
| Bofors RP30 | <<locked>> | 92% | 58,581 psi | 90% | 3156 fps | 100% |
| Bofors RP5 | <<locked>> | 84% | 55,753 psi | 86% | 3094 fps | 100% |
| Hodgdon H1000 | <<locked>> | 90% | 55,912 psi | 86% | 3100 fps | 100% |
| Hodgdon H4831 | <<locked>> | 84% | 57,450 psi | 88% | 3087 fps | 99.6% |
| Hodgdon H4831 SC | <<locked>> | 84% | 56,565 psi | 87% | 3071 fps | 99.5% |
| Hodgdon Retumbo | <<locked>> | 90% | 58,436 psi | 90% | 3232 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 38,058 psi | 59% | 2008 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 84% | 57,551 psi | 89% | 3061 fps | 99.7% |
| IMR 7828 SSC | <<locked>> | 86% | 57,551 psi | 89% | 3143 fps | 99.9% |
| IMR 8133 Enduron | <<locked>> | 98% | 57,043 psi | 88% | 3143 fps | 99.9% |
| Lovex S071 | <<locked>> | 90% | 57,435 psi | 88% | 3025 fps | 100% |
| Norma 217 | <<locked>> | 98% | 58,508 psi | 90% | 3166 fps | 100% |
| Norma MRP | <<locked>> | 82% | 55,753 psi | 86% | 3104 fps | 100% |
| Ramshot Grand | <<locked>> | 84% | 55,056 psi | 85% | 3104 fps | 99.8% |
| Ramshot Magnum | <<locked>> | 88% | 57,638 psi | 89% | 3094 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 39,001 psi | 60% | 2054 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 88% | 55,100 psi | 85% | 3146 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 92% | 58,566 psi | 90% | 3182 fps | 99.6% |
| Rottweil R 904 | <<locked>> | 82% | 56,536 psi | 87% | 3051 fps | 99.8% |
| Rottweil R 905 | <<locked>> | 82% | 55,680 psi | 86% | 3061 fps | 100% |
| SNPE Vectan SP 13ᴾ | <<locked>> | 100% | 52,982 psi | 82% | 3025 fps | 96.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 82% | 55,317 psi | 85% | 3058 fps | 100% |
| Somchem S361 | <<locked>> | 82% | 57,957 psi | 89% | 3041 fps | 99.6% |
| Somchem S385 | <<locked>> | 82% | 55,927 psi | 86% | 3028 fps | 100% |
| Vihtavuori N165 | <<locked>> | 86% | 56,130 psi | 86% | 3022 fps | 100% |
| Vihtavuori N170 | <<locked>> | 90% | 55,564 psi | 86% | 3041 fps | 96.5% |
| Vihtavuori N555 | <<locked>> | 82% | 55,767 psi | 86% | 3031 fps | 100% |
| Vihtavuori N560 | <<locked>> | 82% | 55,100 psi | 85% | 3107 fps | 99.4% |
| Vihtavuori N565 | <<locked>> | 88% | 56,652 psi | 87% | 3107 fps | 99.7% |
| Vihtavuori N568 | <<locked>> | 92% | 58,639 psi | 90% | 3182 fps | 99.4% |
| Vihtavuori N570 | <<locked>> | 92% | 56,217 psi | 87% | 3179 fps | 97.6% |
| Winchester StaBALL HD | <<locked>> | 84% | 54,824 psi | 84% | 3084 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 84% | 55,695 psi | 86% | 3025 fps | 100% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 80% | 48,414 psi | 75% | 2874 fps | 100% |
| Accurate 8700 | <<locked>> | 98% | 47,427 psi | 73% | 2940 fps | 95.3% |
| Accurate High Country | <<locked>> | 80% | 53,490 psi | 82% | 3084 fps | 99.5% |
| Accurate MAGPRO | <<locked>> | 80% | 50,836 psi | 78% | 3025 fps | 98.4% |
| ADI AR 2209 | <<locked>> | 80% | 52,620 psi | 81% | 3018 fps | 99.8% |
| ADI AR 2213 | <<locked>> | 80% | 47,921 psi | 74% | 2959 fps | 98.7% |
| ADI AR 2217 | <<locked>> | 80% | 35,795 psi | 55% | 2684 fps | 95.6% |
| ADI AR 2218 | 84.2 gr | 92% | 47,413 psi | 73% | 3035 fps | 95.9% |
| ADI AR 2225 | <<locked>> | 80% | 33,112 psi | 51% | 2648 fps | 97.6% |
| Alliant Reloder-19 | <<locked>> | 80% | 52,257 psi | 80% | 3005 fps | 99.8% |
| Alliant Reloder-22 | <<locked>> | 80% | 48,675 psi | 75% | 2963 fps | 99.5% |
| Alliant Reloder-23 | <<locked>> | 80% | 47,485 psi | 73% | 2890 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 41,611 psi | 64% | 2835 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 88% | 45,658 psi | 70% | 2949 fps | 95.2% |
| Alliant Reloder-50 | <<locked>> | 94% | 49,574 psi | 76% | 3018 fps | 95.8% |
| Baschieri & Pellagri 109 | <<locked>> | 80% | 45,484 psi | 70% | 2864 fps | 95.7% |
| Bofors RP15 | <<locked>> | 80% | 45,310 psi | 70% | 2894 fps | 99% |
| Bofors RP30 | <<locked>> | 80% | 38,754 psi | 60% | 2762 fps | 96.8% |
| Bofors RP5 | <<locked>> | 80% | 48,675 psi | 75% | 2963 fps | 99.5% |
| Hodgdon H1000 | <<locked>> | 80% | 38,972 psi | 60% | 2766 fps | 97.5% |
| Hodgdon H4831 | <<locked>> | 80% | 50,125 psi | 77% | 2956 fps | 98.7% |
| Hodgdon H4831 SC | <<locked>> | 80% | 49,356 psi | 76% | 2943 fps | 98.6% |
| Hodgdon Retumbo | 69.1 gr | 80% | 40,640 psi | 63% | 2887 fps | 98.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,601 psi | 44% | 1798 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 50,720 psi | 78% | 2943 fps | 98.9% |
| IMR 7828 SSC | <<locked>> | 80% | 46,630 psi | 72% | 2943 fps | 98.5% |
| IMR 8133 Enduron | <<locked>> | 84% | 35,346 psi | 54% | 2690 fps | 95.1% |
| Lovex S071 | <<locked>> | 80% | 41,829 psi | 64% | 2746 fps | 99.8% |
| Norma 217 | <<locked>> | 80% | 31,140 psi | 48% | 2585 fps | 95.5% |
| Norma MRP | <<locked>> | 80% | 51,967 psi | 80% | 3038 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 47,369 psi | 73% | 2963 fps | 98.9% |
| Ramshot Magnum | <<locked>> | 80% | 42,888 psi | 66% | 2828 fps | 99.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 29,341 psi | 45% | 1841 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 80% | 40,364 psi | 62% | 2864 fps | 99.5% |
| ReloadSwiss RS 80 | <<locked>> | 82% | 40,030 psi | 62% | 2815 fps | 95.5% |
| Rottweil R 904 | <<locked>> | 80% | 53,011 psi | 82% | 2989 fps | 99.5% |
| Rottweil R 905 | <<locked>> | 80% | 52,112 psi | 80% | 2999 fps | 99.9% |
| SNPE Vectan SP 13 | <<locked>> | 98% | 49,342 psi | 76% | 2956 fps | 95.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 51,764 psi | 80% | 2995 fps | 99.8% |
| Somchem S361 | <<locked>> | 80% | 54,070 psi | 83% | 2976 fps | 99.3% |
| Somchem S385 | <<locked>> | 80% | 52,460 psi | 81% | 2972 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 45,977 psi | 71% | 2841 fps | 99.5% |
| Vihtavuori N170 | <<locked>> | 88% | 51,909 psi | 80% | 2976 fps | 95.6% |
| Vihtavuori N555 | <<locked>> | 80% | 52,228 psi | 80% | 2972 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 51,372 psi | 79% | 3038 fps | 99% |
| Vihtavuori N565 | <<locked>> | 80% | 43,076 psi | 66% | 2844 fps | 97.4% |
| Vihtavuori N568 | <<locked>> | 82% | 41,031 psi | 63% | 2831 fps | 95.3% |
| Vihtavuori N570 | 78.9 gr | 88% | 48,660 psi | 75% | 3035 fps | 95.7% |
| Winchester StaBALL HD | <<locked>> | 80% | 47,297 psi | 73% | 2963 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 48,573 psi | 75% | 2900 fps | 99.5% |
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 50 powders for 6.5-300 Weatherby Mag. loaded with the .264 | 130gr | Reichenberg Spezial Jagd. Hodgdon Retumbo delivers the highest muzzle velocity at 3,232 fps; across all powders the maximum-charge window runs from 2,008 fps to 3,232 fps. Accurate 8700 gives the best case fill at 100 %, and 50 of the 50 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (448 MPa), the top charges use 59–90 %, leaving at least 10 % headroom. The 130.0 gr projectile in 0.264" calls for a 1:10.5 twist; slower twists will usually not stabilise this weight. Accurate 8700, Hodgdon TrailBoss, ReloadSwiss RS 14 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. ADI AR 2218, Vihtavuori N570, Hodgdon Retumbo rank at the top here: for 6.5-300 Weatherby Mag. with the .264 | 130gr | Reichenberg Spezial Jagd 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.