Load Specifications
Load data in caliber 6.5 x 52 R K&S with .264 | 156gr | Norma Soft Point ALASKA bullet and 41 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Somchem S365 and ReloadSwiss RS 70.
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: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100ᴾ | <<locked>> | 100% | 40,422 psi | 86% | 2274 fps | 96.9% |
| Accurate 4064 | <<locked>> | 82% | 41,640 psi | 88% | 2231 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 40,234 psi | 85% | 2283 fps | 98.5% |
| ADI AR 2208 | <<locked>> | 82% | 40,625 psi | 86% | 2208 fps | 98.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 40,350 psi | 86% | 2228 fps | 99.7% |
| Alliant Reloder-16 | <<locked>> | 92% | 42,656 psi | 90% | 2343 fps | 99.1% |
| Alliant Reloder-17 | <<locked>> | 88% | 42,598 psi | 90% | 2365 fps | 99.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 38,841 psi | 82% | 2303 fps | 99.4% |
| Alliant Reloder-26 | <<locked>> | 98% | 40,059 psi | 85% | 2385 fps | 98.2% |
| Bofors RP3 | <<locked>> | 84% | 42,540 psi | 90% | 2277 fps | 99.9% |
| Hodgdon H380 | <<locked>> | 82% | 40,698 psi | 86% | 2234 fps | 98% |
| Hodgdon H414 | <<locked>> | 88% | 40,190 psi | 85% | 2277 fps | 95.8% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 41,945 psi | 89% | 2287 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,520 psi | 75% | 1444 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 86% | 42,612 psi | 90% | 2238 fps | 96.2% |
| IMR 4831 | <<locked>> | 92% | 41,234 psi | 87% | 2283 fps | 98.7% |
| Lovex S065 | <<locked>> | 88% | 42,090 psi | 89% | 2238 fps | 97.5% |
| Lovex S070 | <<locked>> | 90% | 42,569 psi | 90% | 2264 fps | 96.6% |
| Norma URP | <<locked>> | 90% | 40,495 psi | 86% | 2283 fps | 98.4% |
| Ramshot Big Game | <<locked>> | 82% | 42,061 psi | 89% | 2287 fps | 99.4% |
| Ramshot Hunter | <<locked>> | 92% | 41,800 psi | 89% | 2316 fps | 97.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,245 psi | 77% | 1483 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 41,292 psi | 88% | 2224 fps | 96.6% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 42,351 psi | 90% | 2362 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 42,496 psi | 90% | 2346 fps | 98.7% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 42,511 psi | 90% | 2362 fps | 98.2% |
| Rottweil R 903 | <<locked>> | 84% | 40,234 psi | 85% | 2231 fps | 99.6% |
| Shooters World Long Rifle | <<locked>> | 88% | 42,090 psi | 89% | 2238 fps | 97.5% |
| Shooters World SW4350 | <<locked>> | 90% | 42,569 psi | 90% | 2264 fps | 96.6% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 41,133 psi | 87% | 2277 fps | 99.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 42,540 psi | 90% | 2162 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 41,278 psi | 88% | 2188 fps | 96% |
| Somchem S355 | <<locked>> | 84% | 40,770 psi | 86% | 2228 fps | 99.5% |
| Somchem S365 | <<locked>> | 94% | 41,075 psi | 87% | 2333 fps | 100% |
| Vihtavuori N150 | <<locked>> | 86% | 41,568 psi | 88% | 2218 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 42,134 psi | 89% | 2277 fps | 98.6% |
| Vihtavuori N550 | <<locked>> | 90% | 41,365 psi | 88% | 2280 fps | 98.3% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 42,540 psi | 90% | 2369 fps | 99.3% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 41,989 psi | 89% | 2260 fps | 99.8% |
| Winchester 760 | <<locked>> | 88% | 40,567 psi | 86% | 2283 fps | 95.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 34,722 psi | 74% | 2313 fps | 99.5% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 96% | 35,230 psi | 75% | 2182 fps | 95.3% |
| Accurate 4064 | <<locked>> | 80% | 39,146 psi | 83% | 2192 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 30,690 psi | 65% | 2093 fps | 95.7% |
| ADI AR 2208 | <<locked>> | 80% | 38,247 psi | 81% | 2165 fps | 98.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 37,942 psi | 80% | 2185 fps | 99.4% |
| Alliant Reloder-16 | <<locked>> | 82% | 31,314 psi | 66% | 2106 fps | 95.8% |
| Alliant Reloder-17 | <<locked>> | 80% | 32,619 psi | 69% | 2165 fps | 98.1% |
| Alliant Reloder-23 | <<locked>> | 88% | 27,079 psi | 57% | 2031 fps | 95.5% |
| Alliant Reloder-26 | 36.2 gr | 92% | 32,837 psi | 70% | 2228 fps | 95.6% |
| Bofors RP3 | <<locked>> | 80% | 37,536 psi | 80% | 2188 fps | 99.4% |
| Hodgdon H380 | <<locked>> | 80% | 38,305 psi | 81% | 2192 fps | 97.5% |
| Hodgdon H414 | <<locked>> | 86% | 37,826 psi | 80% | 2234 fps | 95% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 26,963 psi | 57% | 1975 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,687 psi | 57% | 1289 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 84% | 39,856 psi | 85% | 2188 fps | 95.4% |
| IMR 4831 | <<locked>> | 82% | 29,936 psi | 64% | 2060 fps | 95.4% |
| Lovex S065 | <<locked>> | 82% | 34,882 psi | 74% | 2103 fps | 95.5% |
| Lovex S070 | <<locked>> | 86% | 37,463 psi | 79% | 2172 fps | 95.1% |
| Norma URP | <<locked>> | 82% | 31,314 psi | 66% | 2100 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 80% | 39,566 psi | 84% | 2244 fps | 99.1% |
| Ramshot Hunter | <<locked>> | 88% | 36,840 psi | 78% | 2221 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,731 psi | 57% | 1316 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 38,595 psi | 82% | 2175 fps | 95.9% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 34,737 psi | 74% | 2218 fps | 99.9% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 30,429 psi | 65% | 2106 fps | 95% |
| ReloadSwiss RS 70 | 33.5 gr | 86% | 35,027 psi | 74% | 2208 fps | 95.9% |
| Rottweil R 903 | <<locked>> | 80% | 35,172 psi | 75% | 2139 fps | 98.9% |
| Shooters World Long Rifle | <<locked>> | 82% | 34,882 psi | 74% | 2103 fps | 95.5% |
| Shooters World SW4350 | <<locked>> | 86% | 37,463 psi | 79% | 2172 fps | 95.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 36,114 psi | 77% | 2182 fps | 98.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 37,884 psi | 80% | 2090 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 38,812 psi | 82% | 2146 fps | 95.3% |
| Somchem S355 | <<locked>> | 80% | 36,085 psi | 77% | 2142 fps | 98.8% |
| Somchem S365 | 29.1 gr | 80% | 26,252 psi | 56% | 2011 fps | 97.1% |
| Vihtavuori N150 | <<locked>> | 80% | 34,200 psi | 73% | 2087 fps | 99.4% |
| Vihtavuori N160 | <<locked>> | 80% | 30,676 psi | 65% | 2054 fps | 95.3% |
| Vihtavuori N550 | <<locked>> | 82% | 31,894 psi | 68% | 2096 fps | 95.6% |
| Vihtavuori N555 | <<locked>> | 88% | 28,703 psi | 61% | 2090 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 30,429 psi | 65% | 2034 fps | 97.4% |
| Winchester 760 | <<locked>> | 86% | 37,826 psi | 80% | 2234 fps | 95% |
| Winchester StaBALL HD | <<locked>> | 92% | 26,861 psi | 57% | 2090 fps | 95.8% |
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 41 powders for 6.5 x 52 R K&S loaded with the .264 | 156gr | Norma Soft Point ALASKA. Alliant Reloder-26 delivers the highest muzzle velocity at 2,385 fps; across all powders the maximum-charge window runs from 1,444 fps to 2,385 fps. Accurate 3100 gives the best case fill at 100 %, and 41 of the 41 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (325 MPa), the top charges use 74–90 %, leaving at least 10 % headroom. The 156.0 gr projectile in 0.264" calls for a 1:10.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-23, Hodgdon TrailBoss 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. Alliant Reloder-26, Somchem S365, ReloadSwiss RS 70 rank at the top here: for 6.5 x 52 R K&S with the .264 | 156gr | Norma Soft Point ALASKA 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.