Load Specifications
Load data in caliber 6.5 x 52 R K&S with .264 | 140gr | Ferrobull Tripple Expand Jagd bullet and 48 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Somchem S365, ReloadSwiss RS 70 and Alliant Reloder-17.
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 2495 | <<locked>> | 82% | 40,176 psi | 85% | 2329 fps | 100% |
| Accurate 4064 | <<locked>> | 84% | 40,727 psi | 86% | 2375 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 42,119 psi | 89% | 2467 fps | 98.1% |
| ADI AR 2208 | <<locked>> | 84% | 40,350 psi | 86% | 2349 fps | 98.1% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 40,756 psi | 86% | 2474 fps | 98.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 42,424 psi | 90% | 2415 fps | 99.5% |
| Alliant Reloder-15 | <<locked>> | 82% | 40,147 psi | 85% | 2379 fps | 98.2% |
| Alliant Reloder-16 | <<locked>> | 94% | 42,250 psi | 90% | 2484 fps | 98.3% |
| Alliant Reloder-17 | <<locked>> | 90% | 42,264 psi | 90% | 2510 fps | 99.5% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 35,868 psi | 76% | 2385 fps | 98.1% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 39,639 psi | 84% | 2520 fps | 97% |
| Bofors RP3 | <<locked>> | 86% | 42,032 psi | 89% | 2421 fps | 99.5% |
| Hodgdon H380 | <<locked>> | 84% | 40,495 psi | 86% | 2379 fps | 97.1% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 41,278 psi | 88% | 2425 fps | 99.2% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 40,857 psi | 87% | 2425 fps | 99.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,085 psi | 74% | 1542 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 42,366 psi | 90% | 2379 fps | 98.7% |
| IMR 4831 | <<locked>> | 94% | 40,640 psi | 86% | 2425 fps | 97.8% |
| IMR 4895 | <<locked>> | 82% | 41,133 psi | 87% | 2408 fps | 98.9% |
| Lovex S062 | <<locked>> | 84% | 42,119 psi | 89% | 2382 fps | 99.7% |
| Lovex S065 | <<locked>> | 90% | 41,394 psi | 88% | 2372 fps | 96.5% |
| Norma 203B | <<locked>> | 84% | 42,279 psi | 90% | 2421 fps | 99% |
| Norma URP | <<locked>> | 94% | 42,308 psi | 90% | 2467 fps | 98% |
| Ramshot Big Game | <<locked>> | 84% | 41,989 psi | 89% | 2438 fps | 98.9% |
| Ramshot Hunter | <<locked>> | 94% | 41,553 psi | 88% | 2457 fps | 96% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,636 psi | 76% | 1581 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 42,061 psi | 89% | 2474 fps | 98.6% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 42,192 psi | 90% | 2516 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 41,829 psi | 89% | 2487 fps | 97.8% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 42,627 psi | 90% | 2507 fps | 97.3% |
| Rottweil R 902 | <<locked>> | 82% | 41,495 psi | 88% | 2349 fps | 99.6% |
| Rottweil R 903 | <<locked>> | 88% | 41,945 psi | 89% | 2415 fps | 99.4% |
| Shooters World Long Rifle | <<locked>> | 90% | 41,394 psi | 88% | 2372 fps | 96.5% |
| Shooters World Precision | <<locked>> | 84% | 42,119 psi | 89% | 2382 fps | 99.7% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 40,756 psi | 86% | 2421 fps | 98.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 39,885 psi | 85% | 2270 fps | 100% |
| Somchem S355 | <<locked>> | 86% | 40,277 psi | 85% | 2372 fps | 99% |
| Somchem S365 | <<locked>> | 96% | 40,350 psi | 86% | 2474 fps | 99.8% |
| Vihtavuori N135 | <<locked>> | 82% | 40,843 psi | 87% | 2333 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 41,785 psi | 89% | 2346 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 41,002 psi | 87% | 2359 fps | 99.8% |
| Vihtavuori N160 | <<locked>> | 92% | 41,495 psi | 88% | 2415 fps | 97.7% |
| Vihtavuori N540 | <<locked>> | 82% | 40,045 psi | 85% | 2336 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 40,799 psi | 87% | 2421 fps | 97.4% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 38,696 psi | 82% | 2454 fps | 98% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 41,843 psi | 89% | 2402 fps | 99.4% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 31,908 psi | 68% | 2369 fps | 97.4% |
| Winchester StaBALL Match | <<locked>> | 82% | 42,511 psi | 90% | 2415 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 2495 | <<locked>> | 80% | 37,724 psi | 80% | 2290 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 35,737 psi | 76% | 2283 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 34,084 psi | 72% | 2313 fps | 95.9% |
| ADI AR 2208 | <<locked>> | 80% | 35,520 psi | 75% | 2254 fps | 96.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 37,768 psi | 80% | 2411 fps | 97.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 34,809 psi | 74% | 2270 fps | 98.2% |
| Alliant Reloder-15 | <<locked>> | 80% | 37,536 psi | 80% | 2326 fps | 97.6% |
| Alliant Reloder-16 | <<locked>> | 86% | 32,895 psi | 70% | 2280 fps | 95.2% |
| Alliant Reloder-17 | 32.1 gr | 80% | 29,950 psi | 64% | 2234 fps | 95.9% |
| Alliant Reloder-23 | <<locked>> | 94% | 29,646 psi | 63% | 2231 fps | 95.5% |
| Alliant Reloder-26 | <<locked>> | 98% | 36,999 psi | 78% | 2461 fps | 96% |
| Bofors RP3 | <<locked>> | 80% | 34,345 psi | 73% | 2274 fps | 98.2% |
| Hodgdon H380 | <<locked>> | 80% | 35,288 psi | 75% | 2274 fps | 95.6% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 28,007 psi | 59% | 2133 fps | 95.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 38,116 psi | 81% | 2372 fps | 99% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,976 psi | 55% | 1375 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 37,260 psi | 79% | 2283 fps | 97.6% |
| IMR 4831 | <<locked>> | 88% | 33,243 psi | 71% | 2277 fps | 95.6% |
| IMR 4895 | <<locked>> | 80% | 38,421 psi | 82% | 2356 fps | 98.4% |
| Lovex S062 | <<locked>> | 80% | 37,086 psi | 79% | 2287 fps | 99% |
| Lovex S065 | <<locked>> | 88% | 39,088 psi | 83% | 2329 fps | 95.8% |
| Norma 203B | <<locked>> | 80% | 36,883 psi | 78% | 2316 fps | 98% |
| Norma URP | <<locked>> | 86% | 32,648 psi | 69% | 2267 fps | 95% |
| Ramshot Big Game | <<locked>> | 80% | 36,376 psi | 77% | 2329 fps | 97.6% |
| Ramshot Hunter | <<locked>> | 92% | 38,914 psi | 83% | 2405 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,237 psi | 56% | 1407 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 39,175 psi | 83% | 2418 fps | 98% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 31,937 psi | 68% | 2297 fps | 99% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 34,026 psi | 72% | 2329 fps | 95.3% |
| ReloadSwiss RS 70 | 36.7 gr | 90% | 36,999 psi | 78% | 2388 fps | 95.4% |
| Rottweil R 902 | <<locked>> | 80% | 38,740 psi | 82% | 2300 fps | 99.2% |
| Rottweil R 903 | <<locked>> | 80% | 32,169 psi | 68% | 2221 fps | 97.3% |
| Shooters World Long Rifle | <<locked>> | 88% | 39,088 psi | 83% | 2329 fps | 95.8% |
| Shooters World Precision | <<locked>> | 80% | 37,086 psi | 79% | 2287 fps | 99% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 33,272 psi | 71% | 2267 fps | 96.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 35,259 psi | 75% | 2188 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 33,301 psi | 71% | 2231 fps | 97.4% |
| Somchem S365 | 31.2 gr | 82% | 25,396 psi | 54% | 2116 fps | 95.3% |
| Vihtavuori N135 | <<locked>> | 80% | 38,377 psi | 81% | 2290 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 39,015 psi | 83% | 2297 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 31,546 psi | 67% | 2175 fps | 98.1% |
| Vihtavuori N160 | <<locked>> | 86% | 34,055 psi | 72% | 2267 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 80% | 37,449 psi | 79% | 2290 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 86% | 33,576 psi | 71% | 2274 fps | 95.1% |
| Vihtavuori N555 | <<locked>> | 94% | 31,618 psi | 67% | 2300 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 28,152 psi | 60% | 2106 fps | 95.2% |
| Winchester StaBALL HD | <<locked>> | 98% | 29,849 psi | 63% | 2306 fps | 96.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 39,726 psi | 84% | 2365 fps | 99% |
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 48 powders for 6.5 x 52 R K&S loaded with the .264 | 140gr | Ferrobull Tripple Expand Jagd. Alliant Reloder-26 delivers the highest muzzle velocity at 2,520 fps; across all powders the maximum-charge window runs from 1,542 fps to 2,520 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 48 of the 48 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (325 MPa), the top charges use 68–90 %, 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. Alliant Reloder-23, Alliant Reloder-26, 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. Somchem S365, ReloadSwiss RS 70, Alliant Reloder-17 rank at the top here: for 6.5 x 52 R K&S with the .264 | 140gr | Ferrobull Tripple Expand Jagd 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.