Load Specifications
Load data in caliber 6.5 x 70 R with .264 | 159gr | RWS TMR bullet and 27 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Somchem S365, Hodgdon Hybrid 100V and Winchester 6.5 StaBALL.
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 4064 | <<locked>> | 82% | 35,491 psi | 87% | 2047 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 35,781 psi | 88% | 2116 fps | 96.8% |
| ADI AR 2208 | <<locked>> | 82% | 35,476 psi | 87% | 2018 fps | 97.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 34,896 psi | 86% | 2041 fps | 98.5% |
| Alliant Reloder-16 | <<locked>> | 92% | 36,608 psi | 90% | 2123 fps | 97% |
| Alliant Reloder-17 | <<locked>> | 88% | 36,521 psi | 90% | 2152 fps | 98.5% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 32,895 psi | 81% | 2083 fps | 97.3% |
| Bofors RP3 | <<locked>> | 84% | 36,230 psi | 89% | 2080 fps | 98.9% |
| Hodgdon H380 | <<locked>> | 82% | 35,201 psi | 87% | 2041 fps | 95.9% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 35,476 psi | 87% | 2077 fps | 98.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,780 psi | 86% | 1342 fps | 100% |
| IMR 4831 | <<locked>> | 92% | 34,780 psi | 86% | 2080 fps | 96.5% |
| Norma URP | <<locked>> | 92% | 36,622 psi | 90% | 2119 fps | 96.8% |
| Ramshot Big Game | <<locked>> | 82% | 36,303 psi | 89% | 2090 fps | 97.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,157 psi | 87% | 1375 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 36,245 psi | 89% | 2152 fps | 99.9% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 35,752 psi | 88% | 2133 fps | 96.3% |
| Rottweil R 903 | <<locked>> | 86% | 36,535 psi | 90% | 2080 fps | 98.7% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 35,404 psi | 87% | 2080 fps | 97.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 35,085 psi | 86% | 1955 fps | 100% |
| Somchem S355 | <<locked>> | 84% | 35,230 psi | 87% | 2041 fps | 98.2% |
| Somchem S365 | <<locked>> | 94% | 34,534 psi | 85% | 2119 fps | 99.2% |
| Vihtavuori N150 | <<locked>> | 86% | 35,824 psi | 88% | 2034 fps | 99.3% |
| Vihtavuori N160 | <<locked>> | 90% | 36,129 psi | 89% | 2077 fps | 96.5% |
| Vihtavuori N550 | <<locked>> | 90% | 34,896 psi | 86% | 2073 fps | 96% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 34,896 psi | 86% | 2142 fps | 97.3% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 36,289 psi | 89% | 2060 fps | 98.4% |
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 4064 | <<locked>> | 80% | 33,243 psi | 82% | 2005 fps | 99.9% |
| Accurate 4350 | <<locked>> | 88% | 31,270 psi | 77% | 2028 fps | 95.3% |
| ADI AR 2208 | <<locked>> | 80% | 33,315 psi | 82% | 1975 fps | 96.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 32,721 psi | 81% | 1998 fps | 98% |
| Alliant Reloder-16 | <<locked>> | 88% | 32,764 psi | 81% | 2041 fps | 95.5% |
| Alliant Reloder-17 | <<locked>> | 80% | 28,065 psi | 69% | 1959 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 96% | 29,211 psi | 72% | 1995 fps | 95.6% |
| Bofors RP3 | <<locked>> | 80% | 31,792 psi | 78% | 1995 fps | 97.9% |
| Hodgdon H380 | <<locked>> | 80% | 33,040 psi | 81% | 1998 fps | 95.1% |
| Hodgdon Hybrid 100V | 25 gr | 86% | 27,905 psi | 69% | 1913 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,947 psi | 64% | 1198 fps | 100% |
| IMR 4831 | <<locked>> | 90% | 32,619 psi | 80% | 2037 fps | 95.8% |
| Norma URP | <<locked>> | 88% | 32,285 psi | 80% | 2034 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 80% | 33,808 psi | 83% | 2041 fps | 97.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,382 psi | 65% | 1230 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 29,863 psi | 74% | 2014 fps | 98.6% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 33,605 psi | 83% | 2090 fps | 95.5% |
| Rottweil R 903 | <<locked>> | 80% | 30,023 psi | 74% | 1952 fps | 97% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 30,995 psi | 76% | 1988 fps | 96.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 32,880 psi | 81% | 1919 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 31,009 psi | 76% | 1959 fps | 97% |
| Somchem S365 | 25.1 gr | 84% | 25,382 psi | 63% | 1903 fps | 95.8% |
| Vihtavuori N150 | <<locked>> | 80% | 29,486 psi | 73% | 1909 fps | 97.9% |
| Vihtavuori N160 | <<locked>> | 88% | 33,953 psi | 84% | 2034 fps | 95.8% |
| Vihtavuori N550 | <<locked>> | 88% | 32,822 psi | 81% | 2034 fps | 95.2% |
| Vihtavuori N555 | <<locked>> | 96% | 30,821 psi | 76% | 2057 fps | 95.8% |
| Winchester 6.5 StaBALL | 26.5 gr | 82% | 28,123 psi | 69% | 1890 fps | 95.5% |
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 27 powders for 6.5 x 70 R loaded with the .264 | 159gr | RWS TMR. Alliant Reloder-17 delivers the highest muzzle velocity at 2,152 fps; across all powders the maximum-charge window runs from 1,342 fps to 2,152 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 27 of the 27 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (280 MPa), the top charges use 81–90 %, leaving at least 10 % headroom. The 159.0 gr projectile in 0.264" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. Alliant Reloder-23, 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. Somchem S365, Hodgdon Hybrid 100V, Winchester 6.5 StaBALL rank at the top here: for 6.5 x 70 R with the .264 | 159gr | RWS TMR 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.