Load Specifications
Load data in caliber 6.5 x 52 R K&S with .264 | 140gr | Nosler Custom Competition bullet and 48 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 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>> | 84% | 42,293 psi | 90% | 2336 fps | 100% |
| Accurate 4064 | <<locked>> | 86% | 42,438 psi | 90% | 2372 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 40,727 psi | 86% | 2411 fps | 97.4% |
| ADI AR 2208 | <<locked>> | 86% | 42,061 psi | 89% | 2349 fps | 98.1% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 42,018 psi | 89% | 2464 fps | 98% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 41,394 psi | 88% | 2369 fps | 99.2% |
| Alliant Reloder-15 | <<locked>> | 84% | 41,553 psi | 88% | 2372 fps | 98.2% |
| Alliant Reloder-16 | <<locked>> | 94% | 40,944 psi | 87% | 2421 fps | 97.5% |
| Alliant Reloder-17 | <<locked>> | 90% | 40,698 psi | 86% | 2448 fps | 98.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 34,853 psi | 74% | 2326 fps | 97.2% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 42,656 psi | 90% | 2392 fps | 97.9% |
| Bofors RP3 | <<locked>> | 86% | 40,843 psi | 87% | 2372 fps | 99.2% |
| Hodgdon H380 | <<locked>> | 86% | 41,829 psi | 89% | 2372 fps | 97% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 42,540 psi | 90% | 2415 fps | 99.1% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 42,279 psi | 90% | 2421 fps | 99.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,041 psi | 74% | 1516 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 42,148 psi | 89% | 2356 fps | 99% |
| IMR 4064 | <<locked>> | 84% | 41,191 psi | 87% | 2326 fps | 98.1% |
| IMR 4831 | <<locked>> | 96% | 41,872 psi | 89% | 2415 fps | 97.7% |
| IMR 4895 | <<locked>> | 84% | 42,569 psi | 90% | 2402 fps | 98.8% |
| Lovex D073.6 | <<locked>> | 82% | 42,192 psi | 90% | 2369 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 41,046 psi | 87% | 2333 fps | 99.4% |
| Norma 203B | <<locked>> | 84% | 40,857 psi | 87% | 2365 fps | 98.5% |
| Norma URP | <<locked>> | 94% | 40,930 psi | 87% | 2411 fps | 97.3% |
| Ramshot Big Game | <<locked>> | 84% | 40,451 psi | 86% | 2379 fps | 98.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,288 psi | 75% | 1549 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 40,785 psi | 87% | 2421 fps | 98% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 40,857 psi | 87% | 2461 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 40,379 psi | 86% | 2428 fps | 96.9% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 41,133 psi | 87% | 2441 fps | 96.2% |
| Rottweil R 902 | <<locked>> | 82% | 40,799 psi | 87% | 2306 fps | 99.3% |
| Rottweil R 903 | <<locked>> | 88% | 40,712 psi | 86% | 2362 fps | 99% |
| Shooters World Match Rifle | <<locked>> | 82% | 42,192 psi | 90% | 2369 fps | 100% |
| Shooters World Precision | <<locked>> | 84% | 41,046 psi | 87% | 2333 fps | 99.4% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 42,061 psi | 89% | 2415 fps | 98.6% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 42,061 psi | 89% | 2362 fps | 98.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 41,553 psi | 88% | 2270 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 41,814 psi | 89% | 2369 fps | 99% |
| Somchem S365 | <<locked>> | 98% | 41,321 psi | 88% | 2461 fps | 99.8% |
| Vihtavuori N135 | <<locked>> | 84% | 42,395 psi | 90% | 2329 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 40,582 psi | 86% | 2297 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 39,798 psi | 84% | 2310 fps | 99.5% |
| Vihtavuori N160 | <<locked>> | 92% | 40,118 psi | 85% | 2359 fps | 96.9% |
| Vihtavuori N540 | <<locked>> | 84% | 41,568 psi | 88% | 2333 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 42,105 psi | 89% | 2415 fps | 97.3% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 36,941 psi | 78% | 2388 fps | 97.1% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 40,727 psi | 86% | 2349 fps | 98.9% |
| Winchester StaBALL Match | <<locked>> | 82% | 41,191 psi | 87% | 2362 fps | 98.9% |
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% | 37,217 psi | 79% | 2254 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 35,172 psi | 75% | 2244 fps | 99.8% |
| Accurate 4350 | <<locked>> | 88% | 33,069 psi | 70% | 2260 fps | 95% |
| ADI AR 2208 | <<locked>> | 80% | 34,722 psi | 74% | 2205 fps | 96.1% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 36,927 psi | 78% | 2356 fps | 96.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 34,055 psi | 72% | 2224 fps | 97.7% |
| Alliant Reloder-15 | <<locked>> | 80% | 36,782 psi | 78% | 2280 fps | 97% |
| Alliant Reloder-16 | <<locked>> | 88% | 34,229 psi | 73% | 2277 fps | 95.2% |
| Alliant Reloder-17 | 31.2 gr | 82% | 31,473 psi | 67% | 2241 fps | 96% |
| Alliant Reloder-23 | <<locked>> | 96% | 30,734 psi | 65% | 2224 fps | 95.4% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 39,769 psi | 84% | 2339 fps | 97.2% |
| Bofors RP3 | <<locked>> | 80% | 33,489 psi | 71% | 2228 fps | 97.6% |
| Hodgdon H380 | <<locked>> | 82% | 36,999 psi | 78% | 2280 fps | 95.6% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 29,399 psi | 62% | 2139 fps | 95.2% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 37,086 psi | 79% | 2323 fps | 98.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,208 psi | 56% | 1355 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 39,624 psi | 84% | 2310 fps | 98.6% |
| IMR 4064 | <<locked>> | 80% | 36,419 psi | 77% | 2234 fps | 96.9% |
| IMR 4831 | <<locked>> | 90% | 34,389 psi | 73% | 2270 fps | 95.5% |
| IMR 4895 | <<locked>> | 80% | 37,623 psi | 80% | 2310 fps | 97.8% |
| Lovex D073.6 | <<locked>> | 80% | 39,624 psi | 84% | 2326 fps | 99.9% |
| Lovex S062 | <<locked>> | 80% | 36,332 psi | 77% | 2244 fps | 98.6% |
| Norma 203B | <<locked>> | 80% | 36,143 psi | 77% | 2274 fps | 97.4% |
| Norma URP | <<locked>> | 90% | 36,158 psi | 77% | 2316 fps | 95.8% |
| Ramshot Big Game | <<locked>> | 80% | 35,534 psi | 75% | 2280 fps | 96.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,527 psi | 56% | 1388 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 37,898 psi | 80% | 2365 fps | 97.3% |
| ReloadSwiss RS 60 | 30.4 gr | 80% | 31,314 psi | 66% | 2247 fps | 98.4% |
| ReloadSwiss RS 62 | 34.2 gr | 90% | 35,418 psi | 75% | 2329 fps | 95.3% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 38,406 psi | 81% | 2385 fps | 95.2% |
| Rottweil R 902 | <<locked>> | 80% | 38,377 psi | 81% | 2260 fps | 98.9% |
| Rottweil R 903 | <<locked>> | 80% | 31,575 psi | 67% | 2178 fps | 96.7% |
| Shooters World Match Rifle | <<locked>> | 80% | 39,624 psi | 84% | 2326 fps | 99.9% |
| Shooters World Precision | <<locked>> | 80% | 36,332 psi | 77% | 2244 fps | 98.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 32,460 psi | 69% | 2218 fps | 95.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 39,233 psi | 83% | 2310 fps | 98% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 34,360 psi | 73% | 2146 fps | 99.9% |
| Somchem S355 | <<locked>> | 80% | 32,677 psi | 69% | 2188 fps | 96.8% |
| Somchem S365 | <<locked>> | 84% | 26,716 psi | 57% | 2123 fps | 95.5% |
| Vihtavuori N135 | <<locked>> | 80% | 37,275 psi | 79% | 2244 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 38,145 psi | 81% | 2254 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 30,951 psi | 66% | 2133 fps | 97.6% |
| Vihtavuori N160 | <<locked>> | 88% | 35,505 psi | 75% | 2270 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 80% | 36,506 psi | 77% | 2244 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 88% | 34,751 psi | 74% | 2270 fps | 95% |
| Vihtavuori N555 | <<locked>> | 96% | 32,634 psi | 69% | 2297 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 29,486 psi | 63% | 2106 fps | 95.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 38,740 psi | 82% | 2320 fps | 98.5% |
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 | Nosler Custom Competition. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,464 fps; across all powders the maximum-charge window runs from 1,516 fps to 2,464 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 74–90 %, leaving at least 10 % headroom. The 140.0 gr projectile in 0.264" calls for a 1:9.5 twist; slower twists will usually not stabilise this weight. Alliant Reloder-23, Hodgdon TrailBoss, ReloadSwiss RS 14 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, ReloadSwiss RS 62 rank at the top here: for 6.5 x 52 R K&S with the .264 | 140gr | Nosler Custom Competition 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.