Load Specifications
Load data in caliber 6.5 x 52 R K&S with .264 | 140gr | Nosler RDF bullet and 58 powders. The key underlying parameters are shown in the table above.
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% | 40,306 psi | 86% | 2293 fps | 100% |
| Accurate 4064 | <<locked>> | 86% | 40,567 psi | 86% | 2333 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 41,191 psi | 87% | 2405 fps | 97.2% |
| ADI AR 2206H | <<locked>> | 82% | 41,771 psi | 89% | 2339 fps | 98.4% |
| ADI AR 2208 | <<locked>> | 86% | 40,538 psi | 86% | 2303 fps | 97.5% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 40,335 psi | 86% | 2411 fps | 97.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 41,989 psi | 89% | 2362 fps | 99.1% |
| Alliant Reloder-15 | <<locked>> | 86% | 42,554 psi | 90% | 2375 fps | 98.1% |
| Alliant Reloder-16 | <<locked>> | 96% | 41,539 psi | 88% | 2415 fps | 97.3% |
| Alliant Reloder-17 | <<locked>> | 92% | 41,727 psi | 89% | 2448 fps | 98.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 33,083 psi | 70% | 2267 fps | 96.1% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 40,799 psi | 87% | 2343 fps | 97.2% |
| Bofors RP3 | <<locked>> | 88% | 41,872 psi | 89% | 2375 fps | 99.2% |
| Hodgdon BL-C2 | <<locked>> | 82% | 42,279 psi | 90% | 2372 fps | 99.6% |
| Hodgdon H380 | <<locked>> | 86% | 40,350 psi | 86% | 2329 fps | 96.3% |
| Hodgdon H4895 | <<locked>> | 82% | 42,090 psi | 89% | 2352 fps | 98.9% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 40,582 psi | 86% | 2362 fps | 98.5% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 40,364 psi | 86% | 2372 fps | 98.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,780 psi | 74% | 1493 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 40,509 psi | 86% | 2310 fps | 98.5% |
| IMR 3031 | <<locked>> | 82% | 41,452 psi | 88% | 2352 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 42,569 psi | 90% | 2333 fps | 98.1% |
| IMR 4831 | <<locked>> | 98% | 42,409 psi | 90% | 2411 fps | 97.6% |
| IMR 4895 | <<locked>> | 84% | 40,857 psi | 87% | 2356 fps | 98.3% |
| Lovex D073.6 | <<locked>> | 82% | 40,422 psi | 86% | 2326 fps | 99.8% |
| Lovex S060 | <<locked>> | 82% | 42,641 psi | 90% | 2293 fps | 98.5% |
| Lovex S062 | <<locked>> | 86% | 41,974 psi | 89% | 2333 fps | 99.3% |
| Norma 201 | <<locked>> | 82% | 41,017 psi | 87% | 2303 fps | 99.2% |
| Norma 202 | <<locked>> | 82% | 41,336 psi | 88% | 2316 fps | 100% |
| Norma 203B | <<locked>> | 86% | 41,800 psi | 89% | 2365 fps | 98.4% |
| Norma URP | <<locked>> | 96% | 41,423 psi | 88% | 2402 fps | 97.1% |
| Ramshot Big Game | <<locked>> | 86% | 41,597 psi | 88% | 2382 fps | 98.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,433 psi | 75% | 1535 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 41,698 psi | 88% | 2421 fps | 98% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 41,785 psi | 89% | 2461 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 41,017 psi | 87% | 2425 fps | 96.8% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 42,134 psi | 89% | 2438 fps | 96.1% |
| Rottweil R 902 | <<locked>> | 84% | 41,626 psi | 88% | 2306 fps | 99.2% |
| Rottweil R 903 | <<locked>> | 90% | 41,742 psi | 89% | 2365 fps | 98.9% |
| Shooters World Match Rifle | <<locked>> | 82% | 40,422 psi | 86% | 2326 fps | 99.8% |
| Shooters World Precision | <<locked>> | 86% | 41,974 psi | 89% | 2333 fps | 99.3% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 40,321 psi | 86% | 2365 fps | 98% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 41,901 psi | 89% | 2329 fps | 96.6% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 40,495 psi | 86% | 2320 fps | 98.1% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 42,569 psi | 90% | 2274 fps | 100% |
| Somchem S335 | <<locked>> | 82% | 42,134 psi | 89% | 2267 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 41,582 psi | 88% | 2329 fps | 98.2% |
| Somchem S355 | <<locked>> | 90% | 42,467 psi | 90% | 2365 fps | 98.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 42,061 psi | 89% | 2457 fps | 99.7% |
| Vihtavuori N135 | <<locked>> | 84% | 40,422 psi | 86% | 2287 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 41,452 psi | 88% | 2297 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 40,843 psi | 87% | 2313 fps | 99.4% |
| Vihtavuori N160 | <<locked>> | 94% | 41,017 psi | 87% | 2359 fps | 96.9% |
| Vihtavuori N540 | <<locked>> | 86% | 42,656 psi | 90% | 2336 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 40,059 psi | 85% | 2362 fps | 96.5% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 35,099 psi | 74% | 2336 fps | 96.1% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 41,640 psi | 88% | 2346 fps | 98.8% |
| Winchester StaBALL Match | <<locked>> | 84% | 42,235 psi | 90% | 2365 fps | 98.9% |
Start Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 80% | 35,288 psi | 75% | 2208 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 33,388 psi | 71% | 2195 fps | 99.6% |
| Accurate 4350 | <<locked>> | 92% | 35,868 psi | 76% | 2306 fps | 95.7% |
| ADI AR 2206H | <<locked>> | 80% | 39,233 psi | 83% | 2293 fps | 97.8% |
| ADI AR 2208 | <<locked>> | 80% | 33,489 psi | 71% | 2162 fps | 95.3% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 35,563 psi | 75% | 2306 fps | 95.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 32,735 psi | 69% | 2185 fps | 97% |
| Alliant Reloder-15 | <<locked>> | 80% | 35,128 psi | 75% | 2234 fps | 96.2% |
| Alliant Reloder-16 | <<locked>> | 90% | 34,795 psi | 74% | 2270 fps | 95% |
| Alliant Reloder-17 | <<locked>> | 84% | 32,242 psi | 68% | 2244 fps | 96% |
| Alliant Reloder-23 | <<locked>> | 98% | 31,401 psi | 67% | 2224 fps | 95.3% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 38,319 psi | 81% | 2297 fps | 96.5% |
| Bofors RP3 | <<locked>> | 80% | 31,850 psi | 68% | 2178 fps | 96.8% |
| Hodgdon BL-C2 | <<locked>> | 80% | 39,668 psi | 84% | 2326 fps | 99.3% |
| Hodgdon H380 | <<locked>> | 84% | 37,840 psi | 80% | 2280 fps | 95.6% |
| Hodgdon H4895 | <<locked>> | 80% | 39,494 psi | 84% | 2303 fps | 98.4% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 31,705 psi | 67% | 2182 fps | 95.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 35,563 psi | 75% | 2277 fps | 97.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,005 psi | 55% | 1335 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 38,334 psi | 81% | 2270 fps | 98.1% |
| IMR 3031 | <<locked>> | 80% | 38,740 psi | 82% | 2306 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 35,099 psi | 74% | 2192 fps | 96.2% |
| IMR 4831 | <<locked>> | 92% | 34,925 psi | 74% | 2270 fps | 95.4% |
| IMR 4895 | <<locked>> | 80% | 35,911 psi | 76% | 2260 fps | 97.1% |
| Lovex D073.6 | <<locked>> | 80% | 37,840 psi | 80% | 2280 fps | 99.6% |
| Lovex S060 | <<locked>> | 80% | 40,089 psi | 85% | 2247 fps | 98% |
| Lovex S062 | <<locked>> | 80% | 34,969 psi | 74% | 2201 fps | 98% |
| Norma 201 | <<locked>> | 80% | 38,479 psi | 82% | 2254 fps | 98.7% |
| Norma 202 | <<locked>> | 80% | 38,725 psi | 82% | 2270 fps | 99.9% |
| Norma 203B | <<locked>> | 80% | 34,490 psi | 73% | 2224 fps | 96.6% |
| Norma URP | <<locked>> | 92% | 36,796 psi | 78% | 2313 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 80% | 34,142 psi | 72% | 2234 fps | 96.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,310 psi | 56% | 1371 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 36,172 psi | 77% | 2313 fps | 96.5% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 30,066 psi | 64% | 2198 fps | 97.6% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 35,839 psi | 76% | 2320 fps | 95.1% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 39,204 psi | 83% | 2379 fps | 95% |
| Rottweil R 902 | <<locked>> | 80% | 36,622 psi | 78% | 2211 fps | 98.3% |
| Rottweil R 903 | <<locked>> | 80% | 29,979 psi | 64% | 2129 fps | 95.8% |
| Shooters World Match Rifle | <<locked>> | 80% | 37,840 psi | 80% | 2280 fps | 99.6% |
| Shooters World Precision | <<locked>> | 80% | 34,969 psi | 74% | 2201 fps | 98% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 31,096 psi | 66% | 2169 fps | 95% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 39,305 psi | 83% | 2280 fps | 95.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 37,710 psi | 80% | 2267 fps | 97.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 33,040 psi | 70% | 2106 fps | 99.7% |
| Somchem S335 | <<locked>> | 80% | 39,639 psi | 84% | 2228 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 39,059 psi | 83% | 2283 fps | 97.7% |
| Somchem S355 | <<locked>> | 80% | 31,096 psi | 66% | 2139 fps | 95.9% |
| Somchem S365 | <<locked>> | 86% | 27,224 psi | 58% | 2123 fps | 95.4% |
| Vihtavuori N135 | <<locked>> | 80% | 35,665 psi | 76% | 2205 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 36,434 psi | 77% | 2211 fps | 99.8% |
| Vihtavuori N150 | <<locked>> | 80% | 29,486 psi | 63% | 2087 fps | 96.8% |
| Vihtavuori N160 | <<locked>> | 90% | 36,085 psi | 77% | 2264 fps | 95.3% |
| Vihtavuori N540 | <<locked>> | 80% | 34,983 psi | 74% | 2198 fps | 99.5% |
| Vihtavuori N550 | <<locked>> | 92% | 37,623 psi | 80% | 2313 fps | 95.7% |
| Vihtavuori N555 | <<locked>> | 98% | 32,909 psi | 70% | 2287 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 30,313 psi | 64% | 2110 fps | 95.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 37,173 psi | 79% | 2274 fps | 97.9% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 79 powders for 6.5 x 52 R K&S loaded with the .264 | 140gr | Nosler RDF. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,461 fps; across all powders the maximum-charge window runs from 1,493 fps to 2,461 fps. Accurate 3100 gives the best case fill at 100 %, and 79 of the 79 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (325 MPa), the top charges use 63–90 %, leaving at least 10 % headroom. The 140.0 gr projectile in 0.264" calls for a 1:8.5 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. As outliers, Accurate 2700, Accurate 3100, Alliant Reloder-26 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.