Load Specifications
Load data in caliber 6.5 x 70 R with .263 | 139gr | Prvi Partizan FMJ BT bullet and 34 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Bofors RP3 and Alliant Reloder- TS 15.5.
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 2495 | <<locked>> | 86% | 36,332 psi | 89% | 2182 fps | 100% |
| Accurate 4064 | <<locked>> | 88% | 36,158 psi | 89% | 2205 fps | 99.6% |
| ADI AR 2206H | <<locked>> | 82% | 36,289 psi | 89% | 2175 fps | 96.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 35,984 psi | 89% | 2198 fps | 97.2% |
| Alliant Reloder-17 | <<locked>> | 92% | 35,810 psi | 88% | 2254 fps | 96.1% |
| Bofors RP3 | <<locked>> | 88% | 35,201 psi | 87% | 2198 fps | 97.1% |
| Hodgdon BL-C2 | <<locked>> | 82% | 36,042 psi | 89% | 2205 fps | 98.1% |
| Hodgdon H4895 | <<locked>> | 82% | 36,463 psi | 90% | 2185 fps | 96.9% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 34,737 psi | 86% | 2198 fps | 96.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,229 psi | 84% | 1421 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 35,578 psi | 88% | 2152 fps | 96.5% |
| IMR 3031 | <<locked>> | 82% | 35,056 psi | 86% | 2192 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 35,085 psi | 86% | 2185 fps | 96% |
| Lovex D073.6 | <<locked>> | 84% | 36,738 psi | 90% | 2208 fps | 99.1% |
| Lovex S062 | <<locked>> | 86% | 36,143 psi | 89% | 2169 fps | 97.6% |
| Norma 201 | <<locked>> | 82% | 35,665 psi | 88% | 2142 fps | 97.4% |
| Norma 202 | <<locked>> | 82% | 35,447 psi | 87% | 2156 fps | 99.2% |
| Norma 203B | <<locked>> | 86% | 35,911 psi | 88% | 2195 fps | 96.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,476 psi | 85% | 1457 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 35,940 psi | 89% | 2270 fps | 98.6% |
| Rottweil R 902 | <<locked>> | 84% | 35,940 psi | 89% | 2139 fps | 97.5% |
| Rottweil R 903 | <<locked>> | 90% | 35,157 psi | 87% | 2188 fps | 96.8% |
| Shooters World Match Rifle | <<locked>> | 84% | 36,738 psi | 90% | 2208 fps | 99.1% |
| Shooters World Precision | <<locked>> | 86% | 36,143 psi | 89% | 2169 fps | 97.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 34,563 psi | 85% | 2080 fps | 99.6% |
| Somchem S341 | <<locked>> | 82% | 35,897 psi | 88% | 2162 fps | 95.9% |
| Somchem S355 | <<locked>> | 90% | 36,448 psi | 90% | 2198 fps | 96.8% |
| Somchem S365ᴾ | <<locked>> | 100% | 35,752 psi | 88% | 2264 fps | 97.8% |
| Vihtavuori N135 | <<locked>> | 86% | 36,738 psi | 90% | 2175 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 35,984 psi | 89% | 2149 fps | 99.5% |
| Vihtavuori N150 | <<locked>> | 90% | 34,780 psi | 86% | 2146 fps | 97.7% |
| Vihtavuori N540 | <<locked>> | 84% | 34,534 psi | 85% | 2139 fps | 99% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 36,274 psi | 89% | 2172 fps | 96.3% |
| Winchester StaBALL Match | <<locked>> | 84% | 36,376 psi | 90% | 2201 fps | 96.9% |
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 2495 | <<locked>> | 80% | 29,602 psi | 73% | 2054 fps | 99.8% |
| Accurate 4064 | <<locked>> | 80% | 28,021 psi | 69% | 2034 fps | 97.9% |
| ADI AR 2206H | <<locked>> | 80% | 34,418 psi | 85% | 2136 fps | 95.6% |
| Alliant Reloder- TS 15.5 | 24.2 gr | 84% | 31,546 psi | 78% | 2106 fps | 95.7% |
| Alliant Reloder-17 | <<locked>> | 90% | 33,649 psi | 83% | 2205 fps | 95.2% |
| Bofors RP3 | 24.9 gr | 84% | 30,792 psi | 76% | 2106 fps | 95.6% |
| Hodgdon BL-C2 | <<locked>> | 80% | 33,808 psi | 83% | 2159 fps | 97.5% |
| Hodgdon H4895 | <<locked>> | 80% | 34,563 psi | 85% | 2149 fps | 96.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 30,632 psi | 75% | 2106 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,295 psi | 62% | 1266 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 33,359 psi | 82% | 2106 fps | 95.7% |
| IMR 3031 | <<locked>> | 80% | 33,098 psi | 82% | 2156 fps | 99.8% |
| IMR 4895 | <<locked>> | 82% | 32,837 psi | 81% | 2139 fps | 95.2% |
| Lovex D073.6 | <<locked>> | 80% | 32,126 psi | 79% | 2119 fps | 98.1% |
| Lovex S062 | <<locked>> | 80% | 30,095 psi | 74% | 2041 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 33,446 psi | 82% | 2096 fps | 96.8% |
| Norma 202 | <<locked>> | 80% | 33,547 psi | 83% | 2119 fps | 98.9% |
| Norma 203B | <<locked>> | 84% | 33,678 psi | 83% | 2149 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,628 psi | 63% | 1302 fps | 100% |
| ReloadSwiss RS 60 | 25.2 gr | 82% | 27,804 psi | 68% | 2067 fps | 95.1% |
| Rottweil R 902 | <<locked>> | 80% | 31,923 psi | 79% | 2060 fps | 96.2% |
| Rottweil R 903 | <<locked>> | 86% | 30,734 psi | 76% | 2096 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 32,126 psi | 79% | 2119 fps | 98.1% |
| Shooters World Precision | <<locked>> | 80% | 30,095 psi | 74% | 2041 fps | 95.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 28,892 psi | 71% | 1965 fps | 98.5% |
| Somchem S341 | <<locked>> | 80% | 33,344 psi | 82% | 2113 fps | 95% |
| Somchem S355 | <<locked>> | 86% | 32,358 psi | 80% | 2116 fps | 95.5% |
| Somchem S365 | <<locked>> | 94% | 29,617 psi | 73% | 2123 fps | 95.4% |
| Vihtavuori N135 | <<locked>> | 80% | 30,545 psi | 75% | 2060 fps | 99.9% |
| Vihtavuori N140 | <<locked>> | 80% | 31,560 psi | 78% | 2064 fps | 98.7% |
| Vihtavuori N150 | <<locked>> | 84% | 28,863 psi | 71% | 2021 fps | 95.7% |
| Vihtavuori N540 | <<locked>> | 80% | 30,356 psi | 75% | 2054 fps | 98% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 33,794 psi | 83% | 2123 fps | 95.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 31,705 psi | 78% | 2103 fps | 95.3% |
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 34 powders for 6.5 x 70 R loaded with the .263 | 139gr | Prvi Partizan FMJ BT. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,270 fps; across all powders the maximum-charge window runs from 1,421 fps to 2,270 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 34 of the 34 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (280 MPa), the top charges use 84–90 %, leaving at least 10 % headroom. The 139.0 gr projectile in 0.263" calls for a 1:10.0 twist; slower twists will usually not stabilise this weight. Hodgdon TrailBoss, ReloadSwiss RS 14, Somchem S365 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. ReloadSwiss RS 60, Bofors RP3, Alliant Reloder- TS 15.5 rank at the top here: for 6.5 x 70 R with the .263 | 139gr | Prvi Partizan FMJ BT 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.