Load Specifications
Load data in caliber 6.5 x 52 R K&S with .264 | 125gr | Nosler Partition bullet and 56 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Alliant Reloder-17 and Bofors RP3.
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>> | 86% | 42,380 psi | 90% | 2493 fps | 100% |
| Accurate 4064 | <<locked>> | 86% | 39,885 psi | 85% | 2484 fps | 99.9% |
| Accurate 4350 | <<locked>> | 96% | 40,654 psi | 86% | 2559 fps | 96.3% |
| ADI AR 2206H | <<locked>> | 82% | 41,365 psi | 88% | 2497 fps | 97.7% |
| ADI AR 2208 | <<locked>> | 88% | 42,395 psi | 90% | 2500 fps | 97.2% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 39,900 psi | 85% | 2562 fps | 96.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 41,423 psi | 88% | 2520 fps | 98.5% |
| Alliant Reloder-15 | <<locked>> | 86% | 42,090 psi | 89% | 2533 fps | 97.3% |
| Alliant Reloder-16 | <<locked>> | 96% | 41,394 psi | 88% | 2572 fps | 96.4% |
| Alliant Reloder-17 | <<locked>> | 92% | 41,249 psi | 88% | 2602 fps | 98.1% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 40,480 psi | 86% | 2500 fps | 96.3% |
| Bofors RP3 | <<locked>> | 88% | 41,017 psi | 87% | 2523 fps | 98.5% |
| Hodgdon BL-C2 | <<locked>> | 82% | 41,655 psi | 88% | 2526 fps | 99.2% |
| Hodgdon H380 | <<locked>> | 88% | 42,482 psi | 90% | 2530 fps | 96.1% |
| Hodgdon H4895 | <<locked>> | 82% | 41,713 psi | 88% | 2510 fps | 98.2% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 40,263 psi | 85% | 2516 fps | 97.8% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 40,059 psi | 85% | 2530 fps | 98.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,606 psi | 73% | 1617 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 40,176 psi | 85% | 2467 fps | 97.8% |
| IMR 3031 | <<locked>> | 82% | 40,901 psi | 87% | 2516 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 41,974 psi | 89% | 2487 fps | 97.3% |
| IMR 4831 | <<locked>> | 98% | 41,771 psi | 89% | 2562 fps | 96.6% |
| IMR 4895 | <<locked>> | 84% | 40,553 psi | 86% | 2516 fps | 97.6% |
| Lovex D073.6 | <<locked>> | 84% | 42,583 psi | 90% | 2530 fps | 99.8% |
| Lovex S060 | <<locked>> | 82% | 42,148 psi | 89% | 2448 fps | 97.8% |
| Lovex S062 | <<locked>> | 86% | 41,394 psi | 88% | 2487 fps | 98.8% |
| Norma 201 | <<locked>> | 82% | 40,480 psi | 86% | 2454 fps | 98.6% |
| Norma 202 | <<locked>> | 82% | 40,712 psi | 86% | 2470 fps | 99.8% |
| Norma 203B | <<locked>> | 86% | 41,336 psi | 88% | 2520 fps | 97.7% |
| Norma URP | <<locked>> | 96% | 41,118 psi | 87% | 2559 fps | 96.2% |
| Ramshot Big Game | <<locked>> | 86% | 41,220 psi | 87% | 2539 fps | 97.5% |
| Ramshot Wild Boar | <<locked>> | 82% | 42,511 psi | 90% | 2530 fps | 97.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,128 psi | 75% | 1657 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 41,089 psi | 87% | 2579 fps | 97.1% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 41,220 psi | 87% | 2615 fps | 99.7% |
| Rottweil R 902 | <<locked>> | 84% | 40,959 psi | 87% | 2457 fps | 98.7% |
| Rottweil R 903 | <<locked>> | 90% | 41,263 psi | 88% | 2520 fps | 98.3% |
| Shooters World Match Rifle | <<locked>> | 84% | 42,583 psi | 90% | 2530 fps | 99.8% |
| Shooters World Precision | <<locked>> | 86% | 41,394 psi | 88% | 2487 fps | 98.8% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 40,059 psi | 85% | 2523 fps | 97.3% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 42,540 psi | 90% | 2520 fps | 97.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 42,221 psi | 90% | 2421 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 42,061 psi | 89% | 2428 fps | 100% |
| Somchem S335 | <<locked>> | 82% | 41,640 psi | 88% | 2425 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 41,263 psi | 88% | 2487 fps | 97.5% |
| Somchem S355 | <<locked>> | 90% | 42,134 psi | 89% | 2523 fps | 98.3% |
| Somchem S365ᴾ | <<locked>> | 100% | 41,582 psi | 88% | 2612 fps | 99.3% |
| Vihtavuori N133 | <<locked>> | 82% | 42,366 psi | 90% | 2421 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 39,900 psi | 85% | 2444 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 40,944 psi | 87% | 2454 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 90% | 40,422 psi | 86% | 2467 fps | 99% |
| Vihtavuori N160 | <<locked>> | 94% | 40,756 psi | 86% | 2513 fps | 95.9% |
| Vihtavuori N540 | <<locked>> | 86% | 41,974 psi | 89% | 2490 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 96% | 42,409 psi | 90% | 2566 fps | 96.3% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 41,481 psi | 88% | 2503 fps | 98.1% |
| Winchester StaBALL Match | <<locked>> | 84% | 41,829 psi | 89% | 2523 fps | 98.3% |
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% | 34,867 psi | 74% | 2359 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 32,996 psi | 70% | 2343 fps | 99.1% |
| Accurate 4350 | <<locked>> | 94% | 38,130 psi | 81% | 2510 fps | 95.5% |
| ADI AR 2206H | <<locked>> | 80% | 39,044 psi | 83% | 2451 fps | 97.1% |
| ADI AR 2208 | <<locked>> | 82% | 35,288 psi | 75% | 2356 fps | 95% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 37,318 psi | 79% | 2503 fps | 95.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 32,358 psi | 69% | 2326 fps | 96% |
| Alliant Reloder-15 | <<locked>> | 80% | 34,940 psi | 74% | 2382 fps | 95.2% |
| Alliant Reloder-16 | <<locked>> | 94% | 38,754 psi | 82% | 2516 fps | 95.5% |
| Alliant Reloder-17 | 34.1 gr | 86% | 33,852 psi | 72% | 2431 fps | 95.6% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 37,884 psi | 80% | 2448 fps | 95.5% |
| Bofors RP3 | 30.6 gr | 80% | 31,575 psi | 67% | 2320 fps | 95.8% |
| Hodgdon BL-C2 | <<locked>> | 80% | 38,957 psi | 83% | 2474 fps | 98.7% |
| Hodgdon H380 | <<locked>> | 86% | 39,682 psi | 84% | 2477 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 39,305 psi | 83% | 2464 fps | 97.7% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 33,431 psi | 71% | 2369 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 35,070 psi | 74% | 2425 fps | 97% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,860 psi | 55% | 1444 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 37,869 psi | 80% | 2418 fps | 97.2% |
| IMR 3031 | <<locked>> | 80% | 38,058 psi | 81% | 2464 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 34,838 psi | 74% | 2339 fps | 95.2% |
| IMR 4831 | <<locked>> | 94% | 36,709 psi | 78% | 2461 fps | 95.1% |
| IMR 4895 | <<locked>> | 80% | 35,723 psi | 76% | 2411 fps | 96.2% |
| Lovex D073.6 | <<locked>> | 80% | 37,376 psi | 79% | 2431 fps | 99.2% |
| Lovex S060 | <<locked>> | 80% | 39,479 psi | 84% | 2395 fps | 97.2% |
| Lovex S062 | <<locked>> | 80% | 34,374 psi | 73% | 2343 fps | 97.1% |
| Norma 201 | <<locked>> | 80% | 38,145 psi | 81% | 2408 fps | 98.1% |
| Norma 202 | <<locked>> | 80% | 38,319 psi | 81% | 2425 fps | 99.6% |
| Norma 203B | <<locked>> | 80% | 34,301 psi | 73% | 2372 fps | 95.6% |
| Norma URP | <<locked>> | 94% | 38,740 psi | 82% | 2510 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 82% | 35,824 psi | 76% | 2425 fps | 95.8% |
| Ramshot Wild Boar | <<locked>> | 80% | 39,798 psi | 84% | 2474 fps | 97.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,092 psi | 55% | 1480 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 35,694 psi | 76% | 2461 fps | 95.4% |
| ReloadSwiss RS 60 | 31.7 gr | 80% | 29,631 psi | 63% | 2329 fps | 96.3% |
| Rottweil R 902 | <<locked>> | 80% | 36,405 psi | 77% | 2365 fps | 97.7% |
| Rottweil R 903 | <<locked>> | 82% | 31,749 psi | 67% | 2320 fps | 95.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 37,376 psi | 79% | 2431 fps | 99.2% |
| Shooters World Precision | <<locked>> | 80% | 34,374 psi | 73% | 2343 fps | 97.1% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 35,085 psi | 74% | 2415 fps | 95.7% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 37,304 psi | 79% | 2415 fps | 96.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 39,755 psi | 84% | 2375 fps | 99.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 32,692 psi | 69% | 2251 fps | 99.4% |
| Somchem S335 | <<locked>> | 80% | 39,305 psi | 83% | 2382 fps | 99.9% |
| Somchem S341 | <<locked>> | 80% | 38,580 psi | 82% | 2434 fps | 96.8% |
| Somchem S355 | <<locked>> | 82% | 32,721 psi | 69% | 2326 fps | 95.6% |
| Somchem S365 | <<locked>> | 90% | 30,487 psi | 65% | 2356 fps | 96% |
| Vihtavuori N133 | <<locked>> | 80% | 39,900 psi | 85% | 2379 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 35,201 psi | 75% | 2359 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 36,042 psi | 76% | 2362 fps | 99.5% |
| Vihtavuori N150 | <<locked>> | 80% | 29,095 psi | 62% | 2221 fps | 95.8% |
| Vihtavuori N160 | <<locked>> | 92% | 38,087 psi | 81% | 2461 fps | 95.1% |
| Vihtavuori N540 | <<locked>> | 80% | 34,664 psi | 74% | 2349 fps | 99% |
| Vihtavuori N550 | <<locked>> | 94% | 39,653 psi | 84% | 2513 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 33,953 psi | 72% | 2343 fps | 95.8% |
| Winchester StaBALL Match | <<locked>> | 80% | 36,535 psi | 78% | 2418 fps | 97% |
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 56 powders for 6.5 x 52 R K&S loaded with the .264 | 125gr | Nosler Partition. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,615 fps; across all powders the maximum-charge window runs from 1,617 fps to 2,615 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 56 of the 56 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 125.0 gr projectile in 0.264" calls for a 1:10.5 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, Alliant Reloder-17, Bofors RP3 rank at the top here: for 6.5 x 52 R K&S with the .264 | 125gr | Nosler Partition 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.