Load Specifications
Load data in caliber 6.5 Weatherby RPM with .264 | 140gr | Speer Deep Curl Soft Point bullet and 69 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 ReloadSwiss RS 80.
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: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 90% | 57,058 psi | 88% | 2946 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 57,943 psi | 89% | 2966 fps | 100% |
| Accurate High Country | <<locked>> | 86% | 55,230 psi | 85% | 3051 fps | 99.8% |
| Accurate MAGPRO | <<locked>> | 88% | 55,956 psi | 86% | 3058 fps | 99.3% |
| ADI AR 2209 | <<locked>> | 88% | 58,624 psi | 90% | 3038 fps | 100% |
| ADI AR 2213 | <<locked>> | 90% | 56,768 psi | 87% | 3051 fps | 99.8% |
| ADI AR 2217 | <<locked>> | 98% | 55,100 psi | 85% | 3025 fps | 99.9% |
| ADI AR 2218ᴾ | <<locked>> | 100% | 51,372 psi | 79% | 3061 fps | 97.2% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 53,417 psi | 82% | 3045 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 58,668 psi | 90% | 3031 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 58,668 psi | 90% | 3031 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 82% | 55,303 psi | 85% | 2969 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 58,015 psi | 89% | 3025 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 90% | 57,130 psi | 88% | 3045 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 92% | 58,726 psi | 90% | 2999 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 94% | 55,114 psi | 85% | 3025 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 86% | 55,767 psi | 86% | 3045 fps | 100% |
| Alliant Reloder-33ᴾ | <<locked>> | 100% | 56,724 psi | 87% | 3120 fps | 98.3% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 57,363 psi | 88% | 3009 fps | 98.4% |
| Bofors RP15 | <<locked>> | 92% | 56,318 psi | 87% | 3031 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 58,523 psi | 90% | 3094 fps | 100% |
| Bofors RP5 | <<locked>> | 90% | 57,130 psi | 88% | 3045 fps | 100% |
| Hodgdon H1000 | <<locked>> | 96% | 56,695 psi | 87% | 3048 fps | 100% |
| Hodgdon H4831 | <<locked>> | 88% | 56,101 psi | 86% | 2982 fps | 99.5% |
| Hodgdon H4831 SC | <<locked>> | 88% | 55,056 psi | 85% | 2966 fps | 99.4% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 55,245 psi | 85% | 2884 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 96% | 57,870 psi | 89% | 3173 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,652 psi | 58% | 1880 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 57,305 psi | 88% | 2953 fps | 100% |
| IMR 4831 | <<locked>> | 84% | 58,102 psi | 89% | 2956 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 88% | 56,681 psi | 87% | 2963 fps | 99.6% |
| IMR 7828 SSC | <<locked>> | 90% | 55,056 psi | 85% | 3031 fps | 99.7% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 48,892 psi | 75% | 2959 fps | 99.3% |
| Lovex S065 | <<locked>> | 82% | 57,638 psi | 89% | 2927 fps | 100% |
| Lovex S070 | <<locked>> | 82% | 55,999 psi | 86% | 2927 fps | 100% |
| Lovex S071 | <<locked>> | 96% | 58,726 psi | 90% | 2966 fps | 100% |
| Norma 204 | <<locked>> | 84% | 58,813 psi | 90% | 3018 fps | 100% |
| Norma 217ᴾ | <<locked>> | 100% | 49,792 psi | 77% | 2986 fps | 100% |
| Norma MRP | <<locked>> | 88% | 57,232 psi | 88% | 3064 fps | 100% |
| Norma URP | <<locked>> | 82% | 55,869 psi | 86% | 2943 fps | 100% |
| Ramshot Grand | <<locked>> | 90% | 56,072 psi | 86% | 3054 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 84% | 58,668 psi | 90% | 3012 fps | 100% |
| Ramshot Magnum | <<locked>> | 94% | 58,784 psi | 90% | 3045 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,479 psi | 59% | 1923 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 57,986 psi | 89% | 2989 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 82% | 56,507 psi | 87% | 3018 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 54,462 psi | 84% | 3097 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 58,320 psi | 90% | 3130 fps | 99.7% |
| Rottweil R 904 | <<locked>> | 86% | 55,651 psi | 86% | 2946 fps | 99.7% |
| Rottweil R 905 | <<locked>> | 88% | 57,943 psi | 89% | 3018 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 82% | 57,638 psi | 89% | 2927 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 55,999 psi | 86% | 2927 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 56,681 psi | 87% | 2884 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 57,537 psi | 89% | 3012 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 57,116 psi | 88% | 2943 fps | 99.5% |
| Somchem S365 | <<locked>> | 84% | 57,145 psi | 88% | 2946 fps | 100% |
| Somchem S385 | <<locked>> | 88% | 58,189 psi | 90% | 2982 fps | 100% |
| Vihtavuori N160 | <<locked>> | 82% | 57,609 psi | 89% | 2936 fps | 100% |
| Vihtavuori N165 | <<locked>> | 92% | 57,914 psi | 89% | 2966 fps | 100% |
| Vihtavuori N170 | <<locked>> | 96% | 57,101 psi | 88% | 2992 fps | 96.8% |
| Vihtavuori N550 | <<locked>> | 82% | 56,710 psi | 87% | 2940 fps | 100% |
| Vihtavuori N555 | <<locked>> | 88% | 57,087 psi | 88% | 2979 fps | 100% |
| Vihtavuori N560 | <<locked>> | 88% | 56,739 psi | 87% | 3064 fps | 99.6% |
| Vihtavuori N565 | <<locked>> | 94% | 57,290 psi | 88% | 3054 fps | 99.8% |
| Vihtavuori N568 | <<locked>> | 98% | 58,755 psi | 90% | 3127 fps | 99.4% |
| Vihtavuori N570 | <<locked>> | 98% | 55,651 psi | 86% | 3123 fps | 97.8% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 56,855 psi | 87% | 2884 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 92% | 58,494 psi | 90% | 3097 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 90% | 58,189 psi | 90% | 2986 fps | 100% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 80% | 41,046 psi | 63% | 2674 fps | 99.8% |
| Accurate 4350 | <<locked>> | 80% | 54,157 psi | 83% | 2913 fps | 100% |
| Accurate High Country | <<locked>> | 80% | 44,773 psi | 69% | 2861 fps | 98.4% |
| Accurate MAGPRO | <<locked>> | 80% | 42,279 psi | 65% | 2799 fps | 96.6% |
| ADI AR 2209 | <<locked>> | 80% | 44,817 psi | 69% | 2802 fps | 99.1% |
| ADI AR 2213 | <<locked>> | 80% | 40,321 psi | 62% | 2743 fps | 97.2% |
| ADI AR 2217 | <<locked>> | 84% | 34,301 psi | 53% | 2595 fps | 95.4% |
| ADI AR 2218 | <<locked>> | 98% | 47,776 psi | 74% | 2989 fps | 96.1% |
| ADI AR 2225 | <<locked>> | 80% | 27,485 psi | 42% | 2441 fps | 95.1% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 45,440 psi | 70% | 2805 fps | 99.2% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 45,440 psi | 70% | 2805 fps | 99.2% |
| Alliant Reloder-16 | <<locked>> | 80% | 51,706 psi | 80% | 2913 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 45,005 psi | 69% | 2799 fps | 99.1% |
| Alliant Reloder-22 | <<locked>> | 80% | 40,988 psi | 63% | 2753 fps | 98.5% |
| Alliant Reloder-23 | <<locked>> | 80% | 39,610 psi | 61% | 2690 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 34,156 psi | 53% | 2621 fps | 99.4% |
| Alliant Reloder-26 | <<locked>> | 80% | 44,425 psi | 68% | 2858 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 94% | 45,150 psi | 69% | 2910 fps | 95.6% |
| Baschieri & Pellagri 109 | <<locked>> | 84% | 44,628 psi | 69% | 2776 fps | 95.5% |
| Bofors RP15 | <<locked>> | 80% | 37,985 psi | 58% | 2680 fps | 97.6% |
| Bofors RP30 | <<locked>> | 82% | 34,113 psi | 52% | 2615 fps | 95.6% |
| Bofors RP5 | <<locked>> | 80% | 40,988 psi | 63% | 2753 fps | 98.5% |
| Hodgdon H1000 | <<locked>> | 80% | 32,576 psi | 50% | 2549 fps | 95.3% |
| Hodgdon H4831 | <<locked>> | 80% | 42,786 psi | 66% | 2740 fps | 97.2% |
| Hodgdon H4831 SC | <<locked>> | 80% | 42,177 psi | 65% | 2730 fps | 97.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 48,573 psi | 75% | 2785 fps | 100% |
| Hodgdon Retumbo | 56.3 gr | 80% | 33,518 psi | 52% | 2661 fps | 97% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,297 psi | 44% | 1680 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 50,531 psi | 78% | 2844 fps | 100% |
| IMR 4831 | <<locked>> | 80% | 51,053 psi | 79% | 2851 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 43,976 psi | 68% | 2733 fps | 97.7% |
| IMR 7828 SSC | <<locked>> | 80% | 38,972 psi | 60% | 2720 fps | 96.9% |
| IMR 8133 Enduron | <<locked>> | 90% | 34,925 psi | 54% | 2657 fps | 95.8% |
| Lovex S065 | <<locked>> | 80% | 54,114 psi | 83% | 2874 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 52,591 psi | 81% | 2874 fps | 100% |
| Lovex S071 | <<locked>> | 80% | 35,317 psi | 54% | 2549 fps | 99% |
| Norma 204 | <<locked>> | 80% | 51,387 psi | 79% | 2900 fps | 99.7% |
| Norma 217 | <<locked>> | 84% | 28,674 psi | 44% | 2500 fps | 95.2% |
| Norma MRP | <<locked>> | 80% | 43,279 psi | 67% | 2822 fps | 99.7% |
| Norma URP | <<locked>> | 80% | 52,315 psi | 80% | 2890 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 38,798 psi | 60% | 2733 fps | 97.2% |
| Ramshot Hunter | <<locked>> | 80% | 51,416 psi | 79% | 2900 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 34,882 psi | 54% | 2612 fps | 97.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,906 psi | 44% | 1719 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 54,114 psi | 83% | 2933 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 52,576 psi | 81% | 2959 fps | 100% |
| ReloadSwiss RS 76 | 60.2 gr | 80% | 32,532 psi | 50% | 2631 fps | 97.8% |
| ReloadSwiss RS 80 | 65.2 gr | 86% | 36,811 psi | 57% | 2713 fps | 95% |
| Rottweil R 904 | <<locked>> | 80% | 45,992 psi | 71% | 2779 fps | 98.5% |
| Rottweil R 905 | <<locked>> | 80% | 44,396 psi | 68% | 2785 fps | 99.1% |
| Shooters World Long Rifle | <<locked>> | 80% | 54,114 psi | 83% | 2874 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 52,591 psi | 81% | 2874 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 53,156 psi | 82% | 2828 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 44,048 psi | 68% | 2782 fps | 99.1% |
| Somchem S361 | <<locked>> | 80% | 46,746 psi | 72% | 2766 fps | 98.1% |
| Somchem S365 | <<locked>> | 80% | 49,966 psi | 77% | 2841 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 45,005 psi | 69% | 2762 fps | 99.6% |
| Vihtavuori N160 | <<locked>> | 80% | 54,012 psi | 83% | 2884 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 39,247 psi | 60% | 2638 fps | 98.5% |
| Vihtavuori N170 | <<locked>> | 92% | 49,719 psi | 76% | 2867 fps | 95% |
| Vihtavuori N550 | <<locked>> | 80% | 53,229 psi | 82% | 2887 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 44,251 psi | 68% | 2772 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 43,091 psi | 66% | 2815 fps | 97.5% |
| Vihtavuori N565 | <<locked>> | 80% | 35,723 psi | 55% | 2628 fps | 95.4% |
| Vihtavuori N568 | <<locked>> | 88% | 41,205 psi | 63% | 2805 fps | 96% |
| Vihtavuori N570 | <<locked>> | 92% | 44,817 psi | 69% | 2917 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 53,098 psi | 82% | 2831 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 80% | 37,173 psi | 57% | 2746 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 41,205 psi | 63% | 2690 fps | 98.5% |
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 69 powders for 6.5 Weatherby RPM loaded with the .264 | 140gr | Speer Deep Curl Soft Point. Hodgdon Retumbo delivers the highest muzzle velocity at 3,173 fps; across all powders the maximum-charge window runs from 1,880 fps to 3,173 fps. ADI AR 2218 gives the best case fill at 100 %, and 69 of the 69 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (448 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 140.0 gr projectile in 0.264" calls for a 1:10.5 twist; slower twists will usually not stabilise this weight. ADI AR 2218, ADI AR 2225, Alliant Reloder-33 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, ReloadSwiss RS 80 rank at the top here: for 6.5 Weatherby RPM with the .264 | 140gr | Speer Deep Curl Soft Point 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.