Load Specifications
Load data in caliber 6.5 x 52 R K&S with .264 | 156gr | Norma VULKAN bullet and 44 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 Ramshot Hunter.
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% | 39,914 psi | 85% | 2264 fps | 96.7% |
| Accurate 4064 | <<locked>> | 82% | 41,350 psi | 88% | 2224 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 39,987 psi | 85% | 2277 fps | 98.4% |
| ADI AR 2208 | <<locked>> | 82% | 40,408 psi | 86% | 2198 fps | 98.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 42,641 psi | 90% | 2264 fps | 99.8% |
| Alliant Reloder-16 | <<locked>> | 92% | 42,105 psi | 89% | 2329 fps | 99% |
| Alliant Reloder-17 | <<locked>> | 88% | 42,119 psi | 89% | 2352 fps | 99.8% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 38,406 psi | 81% | 2293 fps | 99.4% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 42,554 psi | 90% | 2428 fps | 98.7% |
| Bofors RP3 | <<locked>> | 84% | 42,308 psi | 90% | 2267 fps | 99.9% |
| Hodgdon H380 | <<locked>> | 82% | 40,509 psi | 86% | 2228 fps | 97.9% |
| Hodgdon H414 | <<locked>> | 90% | 42,540 psi | 90% | 2316 fps | 96.4% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 41,394 psi | 88% | 2274 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,447 psi | 75% | 1440 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 42,438 psi | 90% | 2228 fps | 99.2% |
| IMR 4451 Enduron | <<locked>> | 86% | 42,105 psi | 89% | 2228 fps | 96% |
| IMR 4831 | <<locked>> | 92% | 41,060 psi | 87% | 2280 fps | 98.6% |
| Lovex S062 | <<locked>> | 82% | 42,482 psi | 90% | 2231 fps | 99.9% |
| Lovex S065 | <<locked>> | 88% | 41,524 psi | 88% | 2224 fps | 97.4% |
| Lovex S070 | <<locked>> | 90% | 42,032 psi | 89% | 2254 fps | 96.4% |
| Norma 203B | <<locked>> | 82% | 42,438 psi | 90% | 2267 fps | 99.5% |
| Norma URP | <<locked>> | 92% | 42,525 psi | 90% | 2316 fps | 98.7% |
| Ramshot Big Game | <<locked>> | 82% | 41,829 psi | 89% | 2280 fps | 99.3% |
| Ramshot Hunter | <<locked>> | 92% | 41,640 psi | 88% | 2310 fps | 97% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,187 psi | 77% | 1476 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 41,075 psi | 87% | 2218 fps | 96.5% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 41,843 psi | 89% | 2352 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 42,293 psi | 90% | 2339 fps | 98.6% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 42,409 psi | 90% | 2356 fps | 98.2% |
| Rottweil R 903 | <<locked>> | 86% | 42,583 psi | 90% | 2267 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 88% | 41,524 psi | 88% | 2224 fps | 97.4% |
| Shooters World Precision | <<locked>> | 82% | 42,482 psi | 90% | 2231 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 90% | 42,032 psi | 89% | 2254 fps | 96.4% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 40,959 psi | 87% | 2270 fps | 99.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 42,337 psi | 90% | 2159 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 41,118 psi | 87% | 2182 fps | 95.9% |
| Somchem S355 | <<locked>> | 84% | 40,524 psi | 86% | 2224 fps | 99.5% |
| Somchem S365 | <<locked>> | 94% | 40,509 psi | 86% | 2320 fps | 100% |
| Vihtavuori N150 | <<locked>> | 86% | 41,379 psi | 88% | 2211 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 41,974 psi | 89% | 2270 fps | 98.5% |
| Vihtavuori N550 | <<locked>> | 90% | 41,191 psi | 87% | 2277 fps | 98.3% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 41,974 psi | 89% | 2356 fps | 99.3% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 41,887 psi | 89% | 2257 fps | 99.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 34,374 psi | 73% | 2303 fps | 99.4% |
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% | 34,722 psi | 74% | 2169 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 38,870 psi | 82% | 2182 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 30,487 psi | 65% | 2087 fps | 95.5% |
| ADI AR 2208 | <<locked>> | 80% | 38,000 psi | 81% | 2156 fps | 98.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 37,666 psi | 80% | 2178 fps | 99.3% |
| Alliant Reloder-16 | <<locked>> | 82% | 31,154 psi | 66% | 2096 fps | 95.6% |
| Alliant Reloder-17 | <<locked>> | 80% | 32,474 psi | 69% | 2159 fps | 98% |
| Alliant Reloder-23 | <<locked>> | 88% | 26,701 psi | 57% | 2018 fps | 95.2% |
| Alliant Reloder-26 | 35.9 gr | 92% | 32,460 psi | 69% | 2215 fps | 95.3% |
| Bofors RP3 | <<locked>> | 80% | 37,304 psi | 79% | 2182 fps | 99.4% |
| Hodgdon H380 | <<locked>> | 80% | 38,101 psi | 81% | 2185 fps | 97.4% |
| Hodgdon H414 | <<locked>> | 88% | 40,016 psi | 85% | 2270 fps | 95.7% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 26,789 psi | 57% | 1969 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,556 psi | 56% | 1286 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 39,900 psi | 85% | 2182 fps | 98.8% |
| IMR 4451 Enduron | <<locked>> | 84% | 39,653 psi | 84% | 2182 fps | 95.2% |
| IMR 4831 | <<locked>> | 82% | 29,747 psi | 63% | 2054 fps | 95.2% |
| Lovex S062 | <<locked>> | 80% | 39,610 psi | 84% | 2182 fps | 99.7% |
| Lovex S065 | <<locked>> | 82% | 34,708 psi | 74% | 2096 fps | 95.3% |
| Lovex S070 | <<locked>> | 88% | 39,610 psi | 84% | 2211 fps | 95.7% |
| Norma 203B | <<locked>> | 80% | 39,552 psi | 84% | 2218 fps | 99.1% |
| Norma URP | <<locked>> | 82% | 30,864 psi | 65% | 2087 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 80% | 39,015 psi | 83% | 2231 fps | 98.9% |
| Ramshot Hunter | 33 gr | 88% | 36,695 psi | 78% | 2215 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,948 psi | 57% | 1319 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 38,377 psi | 81% | 2169 fps | 95.7% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 34,548 psi | 73% | 2211 fps | 99.9% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 32,169 psi | 68% | 2146 fps | 95.7% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 34,853 psi | 74% | 2201 fps | 95.7% |
| Rottweil R 903 | <<locked>> | 80% | 34,925 psi | 74% | 2133 fps | 98.8% |
| Shooters World Long Rifle | <<locked>> | 82% | 34,708 psi | 74% | 2096 fps | 95.3% |
| Shooters World Precision | <<locked>> | 80% | 39,610 psi | 84% | 2182 fps | 99.7% |
| Shooters World SW4350 | <<locked>> | 88% | 39,610 psi | 84% | 2211 fps | 95.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 35,911 psi | 76% | 2178 fps | 98.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 37,637 psi | 80% | 2083 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 38,595 psi | 82% | 2139 fps | 95.1% |
| Somchem S355 | <<locked>> | 80% | 35,839 psi | 76% | 2136 fps | 98.8% |
| Somchem S365 | 28.9 gr | 80% | 26,063 psi | 55% | 2001 fps | 96.9% |
| Vihtavuori N150 | <<locked>> | 80% | 33,997 psi | 72% | 2083 fps | 99.3% |
| Vihtavuori N160 | <<locked>> | 80% | 30,226 psi | 64% | 2041 fps | 95% |
| Vihtavuori N550 | <<locked>> | 82% | 31,676 psi | 67% | 2090 fps | 95.5% |
| Vihtavuori N555 | <<locked>> | 88% | 28,529 psi | 61% | 2083 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 30,008 psi | 64% | 2021 fps | 97.2% |
| Winchester StaBALL HD | <<locked>> | 92% | 26,760 psi | 57% | 2083 fps | 95.6% |
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 44 powders for 6.5 x 52 R K&S loaded with the .264 | 156gr | Norma VULKAN. Alliant Reloder-26 delivers the highest muzzle velocity at 2,428 fps; across all powders the maximum-charge window runs from 1,440 fps to 2,428 fps. Accurate 3100 gives the best case fill at 100 %, and 44 of the 44 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (325 MPa), the top charges use 73–90 %, leaving at least 10 % headroom. The 156.0 gr projectile in 0.264" calls for a 1:10.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-23, Alliant Reloder-26 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, Ramshot Hunter rank at the top here: for 6.5 x 52 R K&S with the .264 | 156gr | Norma VULKAN 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.