Load Specifications
Load data in caliber 6.5 x 52 R K&S with .264 | 139gr | Norma FMJ Elektron bullet and 48 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% | 42,264 psi | 90% | 2346 fps | 100% |
| Accurate 4064 | <<locked>> | 86% | 42,337 psi | 90% | 2382 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 40,582 psi | 86% | 2421 fps | 97.3% |
| ADI AR 2208 | <<locked>> | 86% | 42,003 psi | 89% | 2359 fps | 98% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 42,308 psi | 90% | 2480 fps | 98% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 41,321 psi | 88% | 2379 fps | 99.1% |
| Alliant Reloder-15 | <<locked>> | 84% | 41,843 psi | 89% | 2388 fps | 98.2% |
| Alliant Reloder-16 | <<locked>> | 94% | 40,785 psi | 87% | 2431 fps | 97.5% |
| Alliant Reloder-17 | <<locked>> | 90% | 40,915 psi | 87% | 2464 fps | 98.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 34,693 psi | 74% | 2333 fps | 97.1% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 42,540 psi | 90% | 2402 fps | 97.8% |
| Bofors RP3 | <<locked>> | 86% | 41,089 psi | 87% | 2385 fps | 99.2% |
| Hodgdon H380 | <<locked>> | 86% | 42,105 psi | 89% | 2388 fps | 97.1% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 42,351 psi | 90% | 2425 fps | 99.1% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 42,554 psi | 90% | 2438 fps | 99.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,056 psi | 74% | 1522 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 42,467 psi | 90% | 2372 fps | 99% |
| IMR 4064 | <<locked>> | 84% | 41,510 psi | 88% | 2343 fps | 98.1% |
| IMR 4831 | <<locked>> | 96% | 41,727 psi | 89% | 2425 fps | 97.6% |
| IMR 4895 | <<locked>> | 82% | 40,321 psi | 86% | 2372 fps | 98.4% |
| Lovex D073.6 | <<locked>> | 82% | 42,511 psi | 90% | 2385 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 41,002 psi | 87% | 2343 fps | 99.3% |
| Norma 203B | <<locked>> | 84% | 41,162 psi | 87% | 2382 fps | 98.5% |
| Norma URP | <<locked>> | 94% | 41,118 psi | 87% | 2425 fps | 97.3% |
| Ramshot Big Game | <<locked>> | 84% | 40,669 psi | 86% | 2392 fps | 98.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,302 psi | 75% | 1558 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 40,712 psi | 86% | 2431 fps | 98% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 40,741 psi | 86% | 2467 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 40,582 psi | 86% | 2444 fps | 97% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 41,263 psi | 88% | 2454 fps | 96.2% |
| Rottweil R 902 | <<locked>> | 82% | 40,741 psi | 86% | 2316 fps | 99.2% |
| Rottweil R 903 | <<locked>> | 88% | 41,017 psi | 87% | 2379 fps | 99% |
| Shooters World Match Rifle | <<locked>> | 82% | 42,511 psi | 90% | 2385 fps | 100% |
| Shooters World Precision | <<locked>> | 84% | 41,002 psi | 87% | 2343 fps | 99.3% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 42,308 psi | 90% | 2428 fps | 98.6% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 41,989 psi | 89% | 2372 fps | 98.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 41,510 psi | 88% | 2280 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 41,713 psi | 88% | 2379 fps | 98.9% |
| Somchem S365 | <<locked>> | 98% | 41,495 psi | 88% | 2474 fps | 99.8% |
| Vihtavuori N135 | <<locked>> | 84% | 42,395 psi | 90% | 2343 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 40,553 psi | 86% | 2306 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 42,612 psi | 90% | 2365 fps | 99.7% |
| Vihtavuori N160 | <<locked>> | 92% | 40,364 psi | 86% | 2375 fps | 97% |
| Vihtavuori N540 | <<locked>> | 84% | 41,481 psi | 88% | 2343 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 42,250 psi | 90% | 2428 fps | 97.3% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 37,086 psi | 79% | 2402 fps | 97.1% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 40,857 psi | 87% | 2362 fps | 98.9% |
| Winchester StaBALL Match | <<locked>> | 82% | 41,437 psi | 88% | 2379 fps | 98.9% |
Start Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 80% | 37,202 psi | 79% | 2264 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 35,172 psi | 75% | 2254 fps | 99.8% |
| Accurate 4350 | <<locked>> | 90% | 35,563 psi | 75% | 2323 fps | 95.9% |
| ADI AR 2208 | <<locked>> | 80% | 35,012 psi | 74% | 2221 fps | 96.1% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 36,854 psi | 78% | 2365 fps | 96.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 34,069 psi | 72% | 2234 fps | 97.6% |
| Alliant Reloder-15 | <<locked>> | 80% | 36,724 psi | 78% | 2290 fps | 96.9% |
| Alliant Reloder-16 | <<locked>> | 88% | 34,142 psi | 72% | 2287 fps | 95.1% |
| Alliant Reloder-17 | <<locked>> | 80% | 29,573 psi | 63% | 2201 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 96% | 30,864 psi | 65% | 2238 fps | 95.4% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 39,697 psi | 84% | 2349 fps | 97.1% |
| Bofors RP3 | <<locked>> | 80% | 33,460 psi | 71% | 2238 fps | 97.6% |
| Hodgdon H380 | <<locked>> | 82% | 36,927 psi | 78% | 2290 fps | 95.6% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 29,356 psi | 62% | 2149 fps | 95.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 37,028 psi | 79% | 2333 fps | 98.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,947 psi | 55% | 1355 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 39,610 psi | 84% | 2320 fps | 98.5% |
| IMR 4064 | <<locked>> | 80% | 36,724 psi | 78% | 2251 fps | 97% |
| IMR 4831 | <<locked>> | 90% | 34,577 psi | 73% | 2287 fps | 95.5% |
| IMR 4895 | <<locked>> | 80% | 37,594 psi | 80% | 2320 fps | 97.8% |
| Lovex D073.6 | <<locked>> | 80% | 39,566 psi | 84% | 2336 fps | 99.8% |
| Lovex S062 | <<locked>> | 80% | 36,289 psi | 77% | 2251 fps | 98.5% |
| Norma 203B | <<locked>> | 80% | 36,114 psi | 77% | 2280 fps | 97.3% |
| Norma URP | <<locked>> | 88% | 33,910 psi | 72% | 2277 fps | 95% |
| Ramshot Big Game | <<locked>> | 80% | 35,476 psi | 75% | 2290 fps | 96.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,252 psi | 56% | 1391 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 38,189 psi | 81% | 2382 fps | 97.4% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 31,517 psi | 67% | 2260 fps | 98.4% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 35,288 psi | 75% | 2336 fps | 95.2% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 38,537 psi | 82% | 2398 fps | 95.2% |
| Rottweil R 902 | <<locked>> | 80% | 38,348 psi | 81% | 2270 fps | 98.9% |
| Rottweil R 903 | <<locked>> | 80% | 31,575 psi | 67% | 2188 fps | 96.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 39,566 psi | 84% | 2336 fps | 99.8% |
| Shooters World Precision | <<locked>> | 80% | 36,289 psi | 77% | 2251 fps | 98.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 32,721 psi | 69% | 2234 fps | 96% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 39,552 psi | 84% | 2326 fps | 98.1% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 34,360 psi | 73% | 2156 fps | 99.9% |
| Somchem S355 | <<locked>> | 80% | 32,663 psi | 69% | 2198 fps | 96.7% |
| Somchem S365 | <<locked>> | 84% | 26,687 psi | 57% | 2133 fps | 95.4% |
| Vihtavuori N135 | <<locked>> | 80% | 37,275 psi | 79% | 2257 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 38,101 psi | 81% | 2264 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 30,951 psi | 66% | 2142 fps | 97.6% |
| Vihtavuori N160 | <<locked>> | 88% | 35,389 psi | 75% | 2277 fps | 95.4% |
| Vihtavuori N540 | <<locked>> | 80% | 36,796 psi | 78% | 2257 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 88% | 34,650 psi | 74% | 2277 fps | 95% |
| Vihtavuori N555 | <<locked>> | 96% | 32,793 psi | 70% | 2310 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 29,428 psi | 62% | 2116 fps | 95.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 38,682 psi | 82% | 2329 fps | 98.5% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 75 powders for 6.5 x 52 R K&S loaded with the .264 | 139gr | Norma FMJ Elektron. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,480 fps; across all powders the maximum-charge window runs from 1,522 fps to 2,480 fps. Accurate 3100 gives the best case fill at 100 %, and 75 of the 75 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (325 MPa), the top charges use 66–90 %, leaving at least 10 % headroom. The 139.0 gr projectile in 0.264" calls for a 1:10.0 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, ADI AR 2209 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.