Load Specifications
Load data in caliber 6.5 Weatherby RPM with .264 | 140gr | Hornady InterLock bullet and 71 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% | 56,550 psi | 87% | 2936 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 57,319 psi | 88% | 2956 fps | 100% |
| Accurate MAGPRO | <<locked>> | 88% | 55,187 psi | 85% | 3041 fps | 99.2% |
| ADI AR 2209 | <<locked>> | 88% | 58,088 psi | 89% | 3028 fps | 100% |
| ADI AR 2213 | <<locked>> | 90% | 56,246 psi | 87% | 3041 fps | 99.8% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 58,392 psi | 90% | 3071 fps | 100% |
| ADI AR 2218ᴾ | <<locked>> | 100% | 50,633 psi | 78% | 3045 fps | 96.9% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 52,721 psi | 81% | 3035 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 58,146 psi | 89% | 3022 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 84% | 58,204 psi | 90% | 3009 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 57,537 psi | 89% | 3015 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 90% | 56,623 psi | 87% | 3035 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 92% | 58,218 psi | 90% | 2992 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 96% | 58,189 psi | 90% | 3068 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 86% | 54,940 psi | 85% | 3031 fps | 100% |
| Alliant Reloder-33ᴾ | <<locked>> | 100% | 55,782 psi | 86% | 3107 fps | 98.1% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 56,811 psi | 87% | 2999 fps | 98.3% |
| Bofors RP15 | <<locked>> | 92% | 55,811 psi | 86% | 3025 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 57,798 psi | 89% | 3084 fps | 100% |
| Bofors RP5 | <<locked>> | 90% | 56,623 psi | 87% | 3035 fps | 100% |
| Bofors RP7 | <<locked>> | 82% | 58,349 psi | 90% | 2953 fps | 100% |
| Hodgdon H1000 | <<locked>> | 96% | 55,985 psi | 86% | 3035 fps | 100% |
| Hodgdon H414 | <<locked>> | 82% | 58,421 psi | 90% | 3012 fps | 100% |
| Hodgdon H4831 | <<locked>> | 88% | 55,651 psi | 86% | 2976 fps | 99.4% |
| Hodgdon H4831 SC | <<locked>> | 90% | 58,363 psi | 90% | 3015 fps | 99.6% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 58,450 psi | 90% | 2927 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 96% | 57,043 psi | 88% | 3156 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,507 psi | 58% | 1873 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 56,811 psi | 87% | 2943 fps | 100% |
| IMR 4831 | <<locked>> | 84% | 57,551 psi | 89% | 2946 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 88% | 56,217 psi | 86% | 2953 fps | 99.5% |
| IMR 7828 SSC | <<locked>> | 92% | 58,436 psi | 90% | 3084 fps | 99.9% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 48,211 psi | 74% | 2946 fps | 99.2% |
| Lovex S065 | <<locked>> | 82% | 57,087 psi | 88% | 2917 fps | 100% |
| Lovex S070 | <<locked>> | 82% | 55,448 psi | 85% | 2917 fps | 100% |
| Lovex S071 | <<locked>> | 96% | 57,914 psi | 89% | 2956 fps | 100% |
| Norma 204 | <<locked>> | 84% | 58,044 psi | 89% | 3005 fps | 100% |
| Norma 217ᴾ | <<locked>> | 100% | 49,066 psi | 75% | 2972 fps | 100% |
| Norma MRP | <<locked>> | 88% | 56,710 psi | 87% | 3054 fps | 100% |
| Norma URP | <<locked>> | 82% | 55,303 psi | 85% | 2936 fps | 100% |
| Ramshot Grand | <<locked>> | 90% | 55,521 psi | 85% | 3045 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 84% | 57,885 psi | 89% | 2999 fps | 100% |
| Ramshot Magnum | <<locked>> | 94% | 58,030 psi | 89% | 3031 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,551 psi | 59% | 1919 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 57,421 psi | 88% | 2982 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 82% | 55,941 psi | 86% | 3012 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 57,986 psi | 89% | 3150 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 57,305 psi | 88% | 3114 fps | 99.6% |
| Rottweil R 904 | <<locked>> | 88% | 58,581 psi | 90% | 2992 fps | 99.8% |
| Rottweil R 905 | <<locked>> | 88% | 57,145 psi | 88% | 3002 fps | 100% |
| Rottweil R 907 | <<locked>> | 82% | 58,349 psi | 90% | 2953 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 82% | 57,087 psi | 88% | 2917 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 55,448 psi | 85% | 2917 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 56,159 psi | 86% | 2874 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 56,739 psi | 87% | 3002 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 56,478 psi | 87% | 2930 fps | 99.4% |
| Somchem S365 | <<locked>> | 84% | 56,507 psi | 87% | 2936 fps | 100% |
| Somchem S385 | <<locked>> | 88% | 57,711 psi | 89% | 2972 fps | 100% |
| Vihtavuori N160 | <<locked>> | 82% | 57,043 psi | 88% | 2927 fps | 100% |
| Vihtavuori N165 | <<locked>> | 92% | 57,493 psi | 88% | 2959 fps | 100% |
| Vihtavuori N170 | <<locked>> | 96% | 56,231 psi | 87% | 2976 fps | 96.5% |
| Vihtavuori N550 | <<locked>> | 82% | 56,173 psi | 86% | 2930 fps | 100% |
| Vihtavuori N555 | <<locked>> | 88% | 56,536 psi | 87% | 2969 fps | 100% |
| Vihtavuori N560 | <<locked>> | 88% | 56,231 psi | 87% | 3058 fps | 99.6% |
| Vihtavuori N565 | <<locked>> | 94% | 56,579 psi | 87% | 3041 fps | 99.7% |
| Vihtavuori N568 | <<locked>> | 98% | 57,725 psi | 89% | 3110 fps | 99.3% |
| Vihtavuori N570 | <<locked>> | 98% | 54,969 psi | 85% | 3110 fps | 97.6% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 56,405 psi | 87% | 2877 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 58,726 psi | 90% | 3015 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 92% | 57,856 psi | 89% | 3091 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 90% | 57,464 psi | 88% | 2972 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% | 40,524 psi | 62% | 2664 fps | 99.7% |
| Accurate 4350 | <<locked>> | 80% | 53,563 psi | 82% | 2900 fps | 100% |
| Accurate MAGPRO | <<locked>> | 80% | 41,785 psi | 64% | 2785 fps | 96.5% |
| ADI AR 2209 | <<locked>> | 80% | 44,512 psi | 68% | 2795 fps | 99% |
| ADI AR 2213 | <<locked>> | 80% | 39,856 psi | 61% | 2730 fps | 97% |
| ADI AR 2217 | <<locked>> | 84% | 33,910 psi | 52% | 2582 fps | 95.1% |
| ADI AR 2218 | <<locked>> | 98% | 47,268 psi | 73% | 2972 fps | 95.9% |
| ADI AR 2225 | <<locked>> | 82% | 28,993 psi | 45% | 2490 fps | 96.1% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 44,904 psi | 69% | 2795 fps | 99.1% |
| Alliant Reloder-16 | <<locked>> | 80% | 51,068 psi | 79% | 2900 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 44,483 psi | 68% | 2785 fps | 99% |
| Alliant Reloder-22 | <<locked>> | 80% | 40,466 psi | 62% | 2740 fps | 98.3% |
| Alliant Reloder-23 | <<locked>> | 80% | 39,233 psi | 60% | 2684 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 33,866 psi | 52% | 2615 fps | 99.3% |
| Alliant Reloder-26 | <<locked>> | 80% | 43,830 psi | 67% | 2844 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 94% | 44,556 psi | 69% | 2897 fps | 95.3% |
| Baschieri & Pellagri 109 | <<locked>> | 84% | 44,280 psi | 68% | 2762 fps | 95.3% |
| Bofors RP15 | <<locked>> | 80% | 37,681 psi | 58% | 2674 fps | 97.5% |
| Bofors RP30 | <<locked>> | 82% | 33,634 psi | 52% | 2602 fps | 95.3% |
| Bofors RP5 | <<locked>> | 80% | 40,466 psi | 62% | 2740 fps | 98.3% |
| Bofors RP7 | <<locked>> | 80% | 54,723 psi | 84% | 2897 fps | 100% |
| Hodgdon H1000 | <<locked>> | 80% | 32,184 psi | 50% | 2536 fps | 95% |
| Hodgdon H414 | <<locked>> | 80% | 54,795 psi | 84% | 2956 fps | 100% |
| Hodgdon H4831 | <<locked>> | 80% | 42,308 psi | 65% | 2730 fps | 97% |
| Hodgdon H4831 SC | <<locked>> | 80% | 41,684 psi | 64% | 2717 fps | 96.9% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 48,211 psi | 74% | 2779 fps | 100% |
| Hodgdon Retumbo | 55.7 gr | 80% | 33,054 psi | 51% | 2648 fps | 96.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,268 psi | 43% | 1677 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 50,256 psi | 77% | 2838 fps | 99.9% |
| IMR 4831 | <<locked>> | 80% | 50,502 psi | 78% | 2841 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 43,714 psi | 67% | 2726 fps | 97.6% |
| IMR 7828 SSC | <<locked>> | 80% | 38,493 psi | 59% | 2710 fps | 96.7% |
| IMR 8133 Enduron | <<locked>> | 90% | 34,301 psi | 53% | 2641 fps | 95.5% |
| Lovex S065 | <<locked>> | 80% | 53,824 psi | 83% | 2867 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 52,257 psi | 80% | 2867 fps | 100% |
| Lovex S071 | <<locked>> | 80% | 34,983 psi | 54% | 2539 fps | 98.9% |
| Norma 204 | <<locked>> | 80% | 50,865 psi | 78% | 2887 fps | 99.7% |
| Norma 217 | <<locked>> | 86% | 30,168 psi | 46% | 2549 fps | 96% |
| Norma MRP | <<locked>> | 80% | 42,757 psi | 66% | 2812 fps | 99.6% |
| Norma URP | <<locked>> | 80% | 51,996 psi | 80% | 2884 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 38,305 psi | 59% | 2720 fps | 97% |
| Ramshot Hunter | <<locked>> | 80% | 50,894 psi | 78% | 2890 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 34,272 psi | 53% | 2592 fps | 97.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,877 psi | 44% | 1716 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 53,505 psi | 82% | 2923 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 51,982 psi | 80% | 2949 fps | 100% |
| ReloadSwiss RS 76 | 59.6 gr | 80% | 32,140 psi | 49% | 2618 fps | 97.6% |
| ReloadSwiss RS 80 | 66.1 gr | 88% | 39,233 psi | 60% | 2772 fps | 95.9% |
| Rottweil R 904 | <<locked>> | 80% | 45,498 psi | 70% | 2766 fps | 98.4% |
| Rottweil R 905 | <<locked>> | 80% | 44,048 psi | 68% | 2776 fps | 99.1% |
| Rottweil R 907 | <<locked>> | 80% | 54,723 psi | 84% | 2897 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 80% | 53,824 psi | 83% | 2867 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 52,257 psi | 80% | 2867 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 52,620 psi | 81% | 2818 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 43,714 psi | 67% | 2772 fps | 99% |
| Somchem S361 | <<locked>> | 80% | 46,354 psi | 71% | 2756 fps | 98% |
| Somchem S365 | <<locked>> | 80% | 49,559 psi | 76% | 2835 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 44,483 psi | 68% | 2753 fps | 99.5% |
| Vihtavuori N160 | <<locked>> | 80% | 53,432 psi | 82% | 2874 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 38,783 psi | 60% | 2628 fps | 98.4% |
| Vihtavuori N170 | <<locked>> | 94% | 52,678 psi | 81% | 2917 fps | 95.7% |
| Vihtavuori N550 | <<locked>> | 80% | 52,678 psi | 81% | 2877 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 43,671 psi | 67% | 2759 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 42,598 psi | 66% | 2802 fps | 97.3% |
| Vihtavuori N565 | <<locked>> | 80% | 35,244 psi | 54% | 2618 fps | 95.1% |
| Vihtavuori N568 | <<locked>> | 88% | 40,553 psi | 62% | 2789 fps | 95.7% |
| Vihtavuori N570 | <<locked>> | 94% | 47,587 psi | 73% | 2976 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 52,620 psi | 81% | 2822 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 55,027 psi | 85% | 2959 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 80% | 36,564 psi | 56% | 2733 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 40,727 psi | 63% | 2677 fps | 98.3% |
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 71 powders for 6.5 Weatherby RPM loaded with the .264 | 140gr | Hornady InterLock. Hodgdon Retumbo delivers the highest muzzle velocity at 3,156 fps; across all powders the maximum-charge window runs from 1,873 fps to 3,156 fps. ADI AR 2217 gives the best case fill at 100 %, and 71 of the 71 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 1:10.0 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2218, ADI AR 2225 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 | Hornady InterLock 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.