Load Specifications
Load data in caliber 6.5 x 52 R K&S with .264 | 140gr | Remington PSP Core-Lokt bullet and 47 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Somchem S365, Alliant Reloder-17 and ReloadSwiss RS 62.
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% | 40,611 psi | 86% | 2316 fps | 100% |
| Accurate 4064 | <<locked>> | 84% | 41,118 psi | 87% | 2359 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 42,177 psi | 89% | 2448 fps | 97.9% |
| ADI AR 2208 | <<locked>> | 84% | 40,248 psi | 85% | 2326 fps | 97.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 40,509 psi | 86% | 2444 fps | 97.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 42,496 psi | 90% | 2395 fps | 99.4% |
| Alliant Reloder-15 | <<locked>> | 84% | 42,656 psi | 90% | 2402 fps | 98.5% |
| Alliant Reloder-16 | <<locked>> | 94% | 41,742 psi | 89% | 2451 fps | 98% |
| Alliant Reloder-17 | <<locked>> | 90% | 41,872 psi | 89% | 2480 fps | 99.2% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 35,810 psi | 76% | 2359 fps | 97.8% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 39,436 psi | 84% | 2490 fps | 96.5% |
| Bofors RP3 | <<locked>> | 86% | 41,916 psi | 89% | 2398 fps | 99.4% |
| Hodgdon H380 | <<locked>> | 84% | 40,350 psi | 86% | 2356 fps | 96.8% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 40,843 psi | 87% | 2395 fps | 99% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 40,843 psi | 87% | 2405 fps | 99.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,085 psi | 74% | 1526 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 42,308 psi | 90% | 2356 fps | 98.5% |
| IMR 4831 | <<locked>> | 94% | 40,277 psi | 85% | 2395 fps | 97.5% |
| IMR 4895 | <<locked>> | 82% | 41,162 psi | 87% | 2385 fps | 98.7% |
| Lovex S062 | <<locked>> | 84% | 42,206 psi | 90% | 2362 fps | 99.6% |
| Lovex S065 | <<locked>> | 90% | 41,365 psi | 88% | 2349 fps | 96.1% |
| Norma 203B | <<locked>> | 84% | 41,974 psi | 89% | 2392 fps | 98.8% |
| Norma URP | <<locked>> | 94% | 42,192 psi | 90% | 2444 fps | 97.8% |
| Ramshot Big Game | <<locked>> | 84% | 41,771 psi | 89% | 2411 fps | 98.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,723 psi | 76% | 1565 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 41,989 psi | 89% | 2451 fps | 98.4% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 41,727 psi | 89% | 2487 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 41,597 psi | 88% | 2461 fps | 97.4% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 42,090 psi | 89% | 2474 fps | 96.8% |
| Rottweil R 902 | <<locked>> | 82% | 41,597 psi | 88% | 2329 fps | 99.5% |
| Rottweil R 903 | <<locked>> | 88% | 42,177 psi | 89% | 2395 fps | 99.3% |
| Shooters World Long Rifle | <<locked>> | 90% | 41,365 psi | 88% | 2349 fps | 96.1% |
| Shooters World Precision | <<locked>> | 84% | 42,206 psi | 90% | 2362 fps | 99.6% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 40,553 psi | 86% | 2395 fps | 98.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 42,250 psi | 90% | 2290 fps | 100% |
| Somchem S355 | <<locked>> | 86% | 40,422 psi | 86% | 2352 fps | 98.9% |
| Somchem S365 | <<locked>> | 98% | 42,540 psi | 90% | 2490 fps | 99.9% |
| Vihtavuori N135 | <<locked>> | 82% | 40,712 psi | 86% | 2310 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 41,727 psi | 89% | 2323 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 41,147 psi | 87% | 2343 fps | 99.7% |
| Vihtavuori N160 | <<locked>> | 92% | 41,408 psi | 88% | 2392 fps | 97.4% |
| Vihtavuori N540 | <<locked>> | 84% | 42,554 psi | 90% | 2359 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 40,814 psi | 87% | 2398 fps | 97.2% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 38,479 psi | 82% | 2428 fps | 97.7% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 41,669 psi | 88% | 2379 fps | 99.2% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 31,836 psi | 68% | 2339 fps | 96.8% |
| Winchester StaBALL Match | <<locked>> | 82% | 42,569 psi | 90% | 2395 fps | 99.2% |
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% | 38,130 psi | 81% | 2277 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 36,085 psi | 77% | 2267 fps | 99.9% |
| Accurate 4350 | <<locked>> | 88% | 34,098 psi | 72% | 2290 fps | 95.6% |
| ADI AR 2208 | <<locked>> | 80% | 35,752 psi | 76% | 2238 fps | 96.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 37,826 psi | 80% | 2388 fps | 97% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 35,172 psi | 75% | 2257 fps | 98.1% |
| Alliant Reloder-15 | <<locked>> | 80% | 37,884 psi | 80% | 2313 fps | 97.4% |
| Alliant Reloder-16 | <<locked>> | 88% | 35,027 psi | 74% | 2306 fps | 95.8% |
| Alliant Reloder-17 | 31.2 gr | 80% | 30,168 psi | 64% | 2218 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 94% | 29,863 psi | 63% | 2215 fps | 95.2% |
| Alliant Reloder-26 | <<locked>> | 98% | 36,825 psi | 78% | 2431 fps | 95.5% |
| Bofors RP3 | <<locked>> | 80% | 34,577 psi | 73% | 2257 fps | 98.1% |
| Hodgdon H380 | <<locked>> | 80% | 35,447 psi | 75% | 2257 fps | 95.3% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 29,965 psi | 64% | 2162 fps | 95.7% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 38,145 psi | 81% | 2352 fps | 98.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,121 psi | 55% | 1362 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 37,507 psi | 80% | 2267 fps | 97.4% |
| IMR 4831 | <<locked>> | 88% | 33,199 psi | 70% | 2254 fps | 95.3% |
| IMR 4895 | <<locked>> | 80% | 38,754 psi | 82% | 2339 fps | 98.2% |
| Lovex S062 | <<locked>> | 80% | 37,130 psi | 79% | 2267 fps | 98.8% |
| Lovex S065 | <<locked>> | 88% | 38,986 psi | 83% | 2303 fps | 95.4% |
| Norma 203B | <<locked>> | 80% | 37,246 psi | 79% | 2303 fps | 97.8% |
| Norma URP | <<locked>> | 88% | 34,911 psi | 74% | 2297 fps | 95.6% |
| Ramshot Big Game | <<locked>> | 80% | 36,463 psi | 77% | 2310 fps | 97.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,426 psi | 56% | 1394 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 39,059 psi | 83% | 2395 fps | 97.8% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 32,111 psi | 68% | 2277 fps | 98.8% |
| ReloadSwiss RS 62 | 34.3 gr | 88% | 34,098 psi | 72% | 2310 fps | 95% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 37,130 psi | 79% | 2369 fps | 95% |
| Rottweil R 902 | <<locked>> | 80% | 39,160 psi | 83% | 2287 fps | 99.1% |
| Rottweil R 903 | <<locked>> | 80% | 32,387 psi | 69% | 2205 fps | 97.1% |
| Shooters World Long Rifle | <<locked>> | 88% | 38,986 psi | 83% | 2303 fps | 95.4% |
| Shooters World Precision | <<locked>> | 80% | 37,130 psi | 79% | 2267 fps | 98.8% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 33,388 psi | 71% | 2247 fps | 96.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 35,128 psi | 75% | 2169 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 33,417 psi | 71% | 2215 fps | 97.2% |
| Somchem S365 | 30.3 gr | 82% | 25,715 psi | 55% | 2103 fps | 95.1% |
| Vihtavuori N135 | <<locked>> | 80% | 38,218 psi | 81% | 2270 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 38,928 psi | 83% | 2277 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 31,647 psi | 67% | 2156 fps | 98% |
| Vihtavuori N160 | <<locked>> | 86% | 34,243 psi | 73% | 2251 fps | 95.2% |
| Vihtavuori N540 | <<locked>> | 80% | 37,550 psi | 80% | 2270 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 88% | 35,607 psi | 76% | 2297 fps | 95.6% |
| Vihtavuori N555 | <<locked>> | 94% | 31,792 psi | 67% | 2283 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 30,124 psi | 64% | 2136 fps | 95.8% |
| Winchester StaBALL HD | <<locked>> | 98% | 29,863 psi | 63% | 2277 fps | 95.5% |
| Winchester StaBALL Match | <<locked>> | 80% | 39,784 psi | 84% | 2346 fps | 98.8% |
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 47 powders for 6.5 x 52 R K&S loaded with the .264 | 140gr | Remington PSP Core-Lokt. Alliant Reloder-26 delivers the highest muzzle velocity at 2,490 fps; across all powders the maximum-charge window runs from 1,526 fps to 2,490 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 47 of the 47 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 1:10.5 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, Alliant Reloder-17, ReloadSwiss RS 62 rank at the top here: for 6.5 x 52 R K&S with the .264 | 140gr | Remington PSP Core-Lokt 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.