Load Specifications
Load data in caliber 6.5 x 52 R K&S with .264 | 140gr | Berger LRBT Target bullet and 53 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 Alliant Reloder-16.
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% | 41,408 psi | 88% | 2316 fps | 100% |
| Accurate 4064 | <<locked>> | 86% | 41,205 psi | 87% | 2349 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 42,453 psi | 90% | 2438 fps | 97.7% |
| ADI AR 2208 | <<locked>> | 86% | 41,031 psi | 87% | 2320 fps | 97.7% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 41,104 psi | 87% | 2438 fps | 97.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 40,277 psi | 85% | 2343 fps | 98.9% |
| Alliant Reloder-15 | <<locked>> | 84% | 40,814 psi | 87% | 2352 fps | 97.9% |
| Alliant Reloder-16 | <<locked>> | 96% | 42,627 psi | 90% | 2444 fps | 97.8% |
| Alliant Reloder-17 | <<locked>> | 92% | 42,409 psi | 90% | 2470 fps | 99.1% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 33,910 psi | 72% | 2297 fps | 96.6% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 41,640 psi | 88% | 2369 fps | 97.5% |
| Bofors RP3 | <<locked>> | 86% | 39,755 psi | 84% | 2343 fps | 98.9% |
| Hodgdon H380 | <<locked>> | 86% | 41,147 psi | 87% | 2352 fps | 96.7% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 41,278 psi | 88% | 2385 fps | 98.8% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 41,263 psi | 88% | 2395 fps | 99.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,172 psi | 75% | 1509 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 41,437 psi | 88% | 2333 fps | 98.8% |
| IMR 3031 | <<locked>> | 82% | 42,206 psi | 90% | 2372 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 40,480 psi | 86% | 2306 fps | 97.8% |
| IMR 4831 | <<locked>> | 96% | 40,567 psi | 86% | 2385 fps | 97.3% |
| IMR 4895 | <<locked>> | 84% | 41,785 psi | 89% | 2382 fps | 98.6% |
| Lovex D073.6 | <<locked>> | 82% | 41,394 psi | 88% | 2349 fps | 99.9% |
| Lovex S062 | <<locked>> | 84% | 40,321 psi | 86% | 2310 fps | 99.2% |
| Lovex S065 | <<locked>> | 92% | 41,989 psi | 89% | 2343 fps | 95.9% |
| Norma 201 | <<locked>> | 82% | 42,018 psi | 89% | 2326 fps | 99.4% |
| Norma 202 | <<locked>> | 82% | 41,959 psi | 89% | 2333 fps | 100% |
| Norma 203B | <<locked>> | 84% | 40,132 psi | 85% | 2343 fps | 98.2% |
| Norma URP | <<locked>> | 96% | 42,569 psi | 90% | 2431 fps | 97.5% |
| Ramshot Big Game | <<locked>> | 86% | 42,351 psi | 90% | 2405 fps | 98.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,418 psi | 75% | 1542 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 39,624 psi | 84% | 2392 fps | 97.6% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 42,525 psi | 90% | 2480 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 42,105 psi | 89% | 2451 fps | 97.2% |
| Rottweil R 902 | <<locked>> | 84% | 42,192 psi | 90% | 2323 fps | 99.4% |
| Rottweil R 903 | <<locked>> | 90% | 42,656 psi | 90% | 2388 fps | 99.2% |
| Shooters World Long Rifle | <<locked>> | 92% | 41,989 psi | 89% | 2343 fps | 95.9% |
| Shooters World Match Rifle | <<locked>> | 82% | 41,394 psi | 88% | 2349 fps | 99.9% |
| Shooters World Precision | <<locked>> | 84% | 40,321 psi | 86% | 2310 fps | 99.2% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 41,089 psi | 87% | 2388 fps | 98.3% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 41,002 psi | 87% | 2336 fps | 98.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 40,466 psi | 86% | 2247 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 42,438 psi | 90% | 2352 fps | 98.5% |
| Somchem S355 | <<locked>> | 88% | 40,756 psi | 86% | 2343 fps | 98.7% |
| Somchem S365 | <<locked>> | 98% | 40,451 psi | 86% | 2434 fps | 99.6% |
| Vihtavuori N135 | <<locked>> | 84% | 41,510 psi | 88% | 2310 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 42,395 psi | 90% | 2320 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 41,698 psi | 88% | 2333 fps | 99.6% |
| Vihtavuori N160 | <<locked>> | 94% | 41,771 psi | 89% | 2382 fps | 97.2% |
| Vihtavuori N540 | <<locked>> | 84% | 40,538 psi | 86% | 2310 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 41,191 psi | 87% | 2388 fps | 96.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 36,114 psi | 77% | 2365 fps | 96.7% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 42,525 psi | 90% | 2372 fps | 99% |
| Winchester StaBALL Match | <<locked>> | 82% | 40,480 psi | 86% | 2343 fps | 98.7% |
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% | 36,318 psi | 77% | 2231 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 34,330 psi | 73% | 2221 fps | 99.7% |
| Accurate 4350 | <<locked>> | 90% | 34,330 psi | 73% | 2283 fps | 95.3% |
| ADI AR 2208 | <<locked>> | 80% | 34,026 psi | 72% | 2182 fps | 95.7% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 35,998 psi | 76% | 2326 fps | 95.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 33,315 psi | 71% | 2201 fps | 97.3% |
| Alliant Reloder-15 | <<locked>> | 80% | 36,013 psi | 76% | 2260 fps | 96.6% |
| Alliant Reloder-16 | 31.1 gr | 90% | 35,491 psi | 75% | 2297 fps | 95.5% |
| Alliant Reloder-17 | 30.5 gr | 82% | 30,690 psi | 65% | 2211 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 98% | 31,923 psi | 68% | 2247 fps | 95.8% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 38,798 psi | 82% | 2316 fps | 96.8% |
| Bofors RP3 | <<locked>> | 80% | 32,706 psi | 69% | 2205 fps | 97.3% |
| Hodgdon H380 | <<locked>> | 82% | 35,984 psi | 76% | 2251 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 30,414 psi | 65% | 2159 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 36,056 psi | 76% | 2293 fps | 98.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,150 psi | 55% | 1345 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 38,899 psi | 83% | 2287 fps | 98.3% |
| IMR 3031 | <<locked>> | 80% | 39,494 psi | 84% | 2326 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 35,679 psi | 76% | 2211 fps | 96.5% |
| IMR 4831 | <<locked>> | 90% | 33,446 psi | 71% | 2244 fps | 95% |
| IMR 4895 | <<locked>> | 80% | 36,854 psi | 78% | 2287 fps | 97.5% |
| Lovex D073.6 | <<locked>> | 80% | 38,479 psi | 82% | 2300 fps | 99.7% |
| Lovex S062 | <<locked>> | 80% | 35,549 psi | 75% | 2221 fps | 98.3% |
| Lovex S065 | <<locked>> | 90% | 39,465 psi | 84% | 2297 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 39,450 psi | 84% | 2280 fps | 99% |
| Norma 202 | <<locked>> | 80% | 39,363 psi | 84% | 2287 fps | 100% |
| Norma 203B | <<locked>> | 80% | 35,404 psi | 75% | 2251 fps | 97% |
| Norma URP | <<locked>> | 90% | 35,259 psi | 75% | 2290 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 80% | 34,606 psi | 73% | 2254 fps | 96.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,107 psi | 55% | 1371 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 37,130 psi | 79% | 2343 fps | 96.9% |
| ReloadSwiss RS 60 | 29.8 gr | 80% | 30,734 psi | 65% | 2224 fps | 98.1% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 36,796 psi | 78% | 2349 fps | 95.6% |
| Rottweil R 902 | <<locked>> | 80% | 37,579 psi | 80% | 2238 fps | 98.6% |
| Rottweil R 903 | <<locked>> | 80% | 30,864 psi | 65% | 2156 fps | 96.3% |
| Shooters World Long Rifle | <<locked>> | 90% | 39,465 psi | 84% | 2297 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 38,479 psi | 82% | 2300 fps | 99.7% |
| Shooters World Precision | <<locked>> | 80% | 35,549 psi | 75% | 2221 fps | 98.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 31,836 psi | 68% | 2195 fps | 95.5% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 38,566 psi | 82% | 2290 fps | 97.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 33,605 psi | 71% | 2123 fps | 99.8% |
| Somchem S341 | <<locked>> | 80% | 39,537 psi | 84% | 2300 fps | 97.9% |
| Somchem S355 | <<locked>> | 80% | 31,966 psi | 68% | 2165 fps | 96.4% |
| Somchem S365 | <<locked>> | 86% | 27,630 psi | 59% | 2142 fps | 95.8% |
| Vihtavuori N135 | <<locked>> | 80% | 36,376 psi | 77% | 2224 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 37,391 psi | 79% | 2234 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 80% | 30,284 psi | 64% | 2110 fps | 97.3% |
| Vihtavuori N160 | <<locked>> | 90% | 36,811 psi | 78% | 2287 fps | 95.8% |
| Vihtavuori N540 | <<locked>> | 80% | 35,839 psi | 76% | 2224 fps | 99.6% |
| Vihtavuori N550 | <<locked>> | 90% | 36,071 psi | 77% | 2290 fps | 95.4% |
| Vihtavuori N555 | <<locked>> | 96% | 31,850 psi | 68% | 2270 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 30,864 psi | 65% | 2133 fps | 95.6% |
| Winchester StaBALL Match | <<locked>> | 80% | 37,695 psi | 80% | 2290 fps | 98.2% |
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 53 powders for 6.5 x 52 R K&S loaded with the .264 | 140gr | Berger LRBT Target. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,480 fps; across all powders the maximum-charge window runs from 1,509 fps to 2,480 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 53 of the 53 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (325 MPa), the top charges use 72–90 %, 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. 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, Alliant Reloder-16 rank at the top here: for 6.5 x 52 R K&S with the .264 | 140gr | Berger LRBT Target 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.