Load Specifications
Load data in caliber 6.5 x 52 R K&S with .264 | 139gr | Brenneke TOG bullet and 50 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.
A valid access license is required to use the Personalized Load Calculator.
You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 84% | 42,148 psi | 89% | 2343 fps | 100% |
| Accurate 4064 | <<locked>> | 86% | 42,293 psi | 90% | 2382 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 40,509 psi | 86% | 2418 fps | 97.3% |
| ADI AR 2208 | <<locked>> | 86% | 41,945 psi | 89% | 2356 fps | 98% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 41,872 psi | 89% | 2470 fps | 97.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 41,249 psi | 88% | 2375 fps | 99.1% |
| Alliant Reloder-15 | <<locked>> | 84% | 41,771 psi | 89% | 2388 fps | 98.1% |
| Alliant Reloder-16 | <<locked>> | 94% | 40,756 psi | 86% | 2428 fps | 97.4% |
| Alliant Reloder-17 | <<locked>> | 90% | 40,524 psi | 86% | 2454 fps | 98.8% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 34,693 psi | 74% | 2333 fps | 97.1% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 42,467 psi | 90% | 2398 fps | 97.8% |
| Bofors RP3 | <<locked>> | 86% | 40,669 psi | 86% | 2375 fps | 99.1% |
| Hodgdon H380 | <<locked>> | 86% | 42,032 psi | 89% | 2385 fps | 97% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 42,308 psi | 90% | 2421 fps | 99% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 42,148 psi | 89% | 2428 fps | 99.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,244 psi | 75% | 1526 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 42,003 psi | 89% | 2362 fps | 98.9% |
| IMR 4064 | <<locked>> | 84% | 41,423 psi | 88% | 2339 fps | 98.1% |
| IMR 4831 | <<locked>> | 96% | 41,684 psi | 88% | 2425 fps | 97.6% |
| IMR 4895 | <<locked>> | 82% | 39,885 psi | 85% | 2362 fps | 98.3% |
| Lovex D073.6 | <<locked>> | 82% | 42,061 psi | 89% | 2375 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 40,959 psi | 87% | 2339 fps | 99.3% |
| Norma 201 | <<locked>> | 82% | 42,656 psi | 90% | 2356 fps | 99.5% |
| Norma 202 | <<locked>> | 82% | 42,612 psi | 90% | 2362 fps | 100% |
| Norma 203B | <<locked>> | 84% | 41,089 psi | 87% | 2375 fps | 98.5% |
| Norma URP | <<locked>> | 94% | 40,712 psi | 86% | 2415 fps | 97.2% |
| Ramshot Big Game | <<locked>> | 84% | 40,277 psi | 85% | 2385 fps | 98.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,476 psi | 75% | 1558 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 40,625 psi | 86% | 2425 fps | 97.9% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 40,698 psi | 86% | 2467 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 40,190 psi | 85% | 2434 fps | 96.8% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 40,915 psi | 87% | 2444 fps | 96.1% |
| Rottweil R 902 | <<locked>> | 82% | 40,669 psi | 86% | 2313 fps | 99.2% |
| Rottweil R 903 | <<locked>> | 88% | 40,930 psi | 87% | 2375 fps | 99% |
| Shooters World Match Rifle | <<locked>> | 82% | 42,061 psi | 89% | 2375 fps | 100% |
| Shooters World Precision | <<locked>> | 84% | 40,959 psi | 87% | 2339 fps | 99.3% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 42,235 psi | 90% | 2428 fps | 98.6% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 41,887 psi | 89% | 2369 fps | 98.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 41,423 psi | 88% | 2277 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 41,684 psi | 88% | 2375 fps | 98.9% |
| Somchem S365 | <<locked>> | 98% | 41,481 psi | 88% | 2470 fps | 99.8% |
| Vihtavuori N135 | <<locked>> | 84% | 42,308 psi | 90% | 2339 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 40,466 psi | 86% | 2303 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 42,540 psi | 90% | 2365 fps | 99.7% |
| Vihtavuori N160 | <<locked>> | 92% | 40,321 psi | 86% | 2372 fps | 96.9% |
| Vihtavuori N540 | <<locked>> | 84% | 41,394 psi | 88% | 2339 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 41,872 psi | 89% | 2418 fps | 97.2% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 37,072 psi | 79% | 2402 fps | 97.1% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 40,524 psi | 86% | 2356 fps | 98.8% |
| Winchester StaBALL Match | <<locked>> | 82% | 41,031 psi | 87% | 2369 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% | 37,072 psi | 79% | 2260 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 35,041 psi | 74% | 2251 fps | 99.8% |
| Accurate 4350 | <<locked>> | 90% | 35,157 psi | 75% | 2313 fps | 95.7% |
| ADI AR 2208 | <<locked>> | 80% | 34,635 psi | 73% | 2211 fps | 96% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 36,796 psi | 78% | 2362 fps | 96.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 33,968 psi | 72% | 2231 fps | 97.6% |
| Alliant Reloder-15 | <<locked>> | 80% | 36,651 psi | 78% | 2290 fps | 96.9% |
| Alliant Reloder-16 | <<locked>> | 88% | 34,084 psi | 72% | 2283 fps | 95% |
| Alliant Reloder-17 | 31.3 gr | 82% | 31,328 psi | 66% | 2244 fps | 95.8% |
| Alliant Reloder-23 | <<locked>> | 96% | 30,850 psi | 65% | 2238 fps | 95.3% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 39,653 psi | 84% | 2349 fps | 97.1% |
| Bofors RP3 | <<locked>> | 80% | 33,344 psi | 71% | 2234 fps | 97.5% |
| Hodgdon H380 | <<locked>> | 82% | 36,840 psi | 78% | 2287 fps | 95.5% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 29,283 psi | 62% | 2142 fps | 95% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 36,956 psi | 78% | 2329 fps | 98.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,063 psi | 55% | 1358 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 39,552 psi | 84% | 2316 fps | 98.5% |
| IMR 4064 | <<locked>> | 80% | 36,318 psi | 77% | 2241 fps | 96.8% |
| IMR 4831 | <<locked>> | 90% | 34,243 psi | 73% | 2277 fps | 95.4% |
| IMR 4895 | <<locked>> | 80% | 37,492 psi | 80% | 2316 fps | 97.7% |
| Lovex D073.6 | <<locked>> | 80% | 39,479 psi | 84% | 2333 fps | 99.8% |
| Lovex S062 | <<locked>> | 80% | 36,216 psi | 77% | 2251 fps | 98.5% |
| Norma 201 | <<locked>> | 80% | 40,118 psi | 85% | 2310 fps | 99.2% |
| Norma 202 | <<locked>> | 80% | 40,045 psi | 85% | 2316 fps | 100% |
| Norma 203B | <<locked>> | 80% | 36,013 psi | 76% | 2277 fps | 97.3% |
| Norma URP | <<locked>> | 90% | 35,984 psi | 76% | 2320 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 80% | 35,389 psi | 75% | 2287 fps | 96.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,382 psi | 56% | 1391 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 37,768 psi | 80% | 2372 fps | 97.2% |
| ReloadSwiss RS 60 | 30.5 gr | 80% | 31,183 psi | 66% | 2254 fps | 98.3% |
| ReloadSwiss RS 62 | 34.3 gr | 90% | 35,244 psi | 75% | 2333 fps | 95.1% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 38,261 psi | 81% | 2388 fps | 95.1% |
| Rottweil R 902 | <<locked>> | 80% | 38,276 psi | 81% | 2267 fps | 98.8% |
| Rottweil R 903 | <<locked>> | 80% | 31,517 psi | 67% | 2185 fps | 96.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 39,479 psi | 84% | 2333 fps | 99.8% |
| Shooters World Precision | <<locked>> | 80% | 36,216 psi | 77% | 2251 fps | 98.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 32,329 psi | 69% | 2224 fps | 95.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 39,146 psi | 83% | 2316 fps | 98% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 34,272 psi | 73% | 2152 fps | 99.9% |
| Somchem S355 | <<locked>> | 80% | 32,576 psi | 69% | 2195 fps | 96.7% |
| Somchem S365 | <<locked>> | 84% | 26,629 psi | 56% | 2129 fps | 95.3% |
| Vihtavuori N135 | <<locked>> | 80% | 37,202 psi | 79% | 2254 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 38,029 psi | 81% | 2260 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 30,835 psi | 65% | 2139 fps | 97.5% |
| Vihtavuori N160 | <<locked>> | 88% | 35,346 psi | 75% | 2274 fps | 95.3% |
| Vihtavuori N540 | <<locked>> | 80% | 36,419 psi | 77% | 2251 fps | 99.7% |
| Vihtavuori N550 | <<locked>> | 90% | 36,753 psi | 78% | 2320 fps | 95.7% |
| Vihtavuori N555 | <<locked>> | 96% | 32,474 psi | 69% | 2300 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 29,399 psi | 62% | 2113 fps | 95.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 38,580 psi | 82% | 2326 fps | 98.4% |
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 76 powders for 6.5 x 52 R K&S loaded with the .264 | 139gr | Brenneke TOG. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,470 fps; across all powders the maximum-charge window runs from 1,526 fps to 2,470 fps. Accurate 3100 gives the best case fill at 100 %, and 76 of the 76 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 1:9.5 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. 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 | 139gr | Brenneke TOG they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2700, Accurate 3100, Alliant Reloder-19 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.