Load Specifications
Load data in caliber 6.5 x 52 R K&S with .264 | 121gr | SUS-TAC LRT bullet and 57 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 2015 | <<locked>> | 82% | 41,539 psi | 88% | 2448 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 40,799 psi | 87% | 2493 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 39,929 psi | 85% | 2490 fps | 99.1% |
| Accurate 4064 | <<locked>> | 90% | 40,886 psi | 87% | 2523 fps | 99.8% |
| ADI AR 2206H | <<locked>> | 84% | 40,292 psi | 85% | 2490 fps | 96.6% |
| ADI AR 2208 | <<locked>> | 90% | 41,278 psi | 88% | 2490 fps | 96% |
| ADI Benchmark 8208 | <<locked>> | 84% | 42,511 psi | 90% | 2507 fps | 98.3% |
| Alliant AR-Comp | <<locked>> | 84% | 41,437 psi | 88% | 2516 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 40,350 psi | 86% | 2513 fps | 97.6% |
| Alliant Reloder-15 | <<locked>> | 88% | 41,017 psi | 87% | 2526 fps | 96.2% |
| Alliant Reloder-17 | <<locked>> | 94% | 39,943 psi | 85% | 2579 fps | 96.7% |
| Bofors RP3 | <<locked>> | 92% | 42,148 psi | 89% | 2562 fps | 98.1% |
| Hodgdon Benchmark | <<locked>> | 82% | 42,366 psi | 90% | 2461 fps | 98.7% |
| Hodgdon BL-C2 | <<locked>> | 84% | 40,596 psi | 86% | 2523 fps | 98.4% |
| Hodgdon CFE223 | <<locked>> | 82% | 41,829 psi | 89% | 2595 fps | 96.4% |
| Hodgdon H4895 | <<locked>> | 84% | 40,553 psi | 86% | 2503 fps | 97.2% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 38,798 psi | 82% | 2493 fps | 96.4% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 41,640 psi | 88% | 2572 fps | 97.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,403 psi | 73% | 1614 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 42,018 psi | 89% | 2513 fps | 97.5% |
| IMR 3031 | <<locked>> | 86% | 41,959 psi | 89% | 2559 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 40,712 psi | 86% | 2474 fps | 96.1% |
| IMR 4895 | <<locked>> | 88% | 41,959 psi | 89% | 2556 fps | 97.1% |
| IMR 8208 XBR | <<locked>> | 84% | 42,511 psi | 90% | 2507 fps | 98.3% |
| Lovex D073.6 | <<locked>> | 86% | 41,292 psi | 88% | 2526 fps | 99.3% |
| Lovex S060 | <<locked>> | 84% | 41,292 psi | 88% | 2441 fps | 96.8% |
| Lovex S062 | <<locked>> | 88% | 40,248 psi | 85% | 2480 fps | 97.9% |
| Norma 201 | <<locked>> | 86% | 42,192 psi | 90% | 2500 fps | 98.3% |
| Norma 202 | <<locked>> | 86% | 42,380 psi | 90% | 2520 fps | 99.7% |
| Norma 203B | <<locked>> | 88% | 40,292 psi | 85% | 2513 fps | 96.6% |
| Ramshot Big Game | <<locked>> | 88% | 39,885 psi | 85% | 2523 fps | 96.2% |
| Ramshot Wild Boar | <<locked>> | 84% | 41,640 psi | 88% | 2526 fps | 96.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,519 psi | 73% | 1650 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 42,554 psi | 90% | 2621 fps | 96.6% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 42,627 psi | 90% | 2648 fps | 99.4% |
| Rottweil R 901 | <<locked>> | 82% | 41,089 psi | 87% | 2461 fps | 99.4% |
| Rottweil R 902 | <<locked>> | 88% | 42,380 psi | 90% | 2497 fps | 98.3% |
| Rottweil R 903 | <<locked>> | 94% | 42,061 psi | 89% | 2552 fps | 97.8% |
| Shooters World Match Rifle | <<locked>> | 86% | 41,292 psi | 88% | 2526 fps | 99.3% |
| Shooters World Precision | <<locked>> | 88% | 40,248 psi | 85% | 2480 fps | 97.9% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 41,466 psi | 88% | 2562 fps | 96.7% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 41,350 psi | 88% | 2510 fps | 96.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 41,524 psi | 88% | 2421 fps | 99.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 40,828 psi | 87% | 2425 fps | 99.9% |
| Somchem S335 | <<locked>> | 84% | 40,915 psi | 87% | 2428 fps | 99.8% |
| Somchem S341 | <<locked>> | 84% | 40,030 psi | 85% | 2474 fps | 96.3% |
| Somchem S355 | <<locked>> | 92% | 40,843 psi | 87% | 2513 fps | 97.3% |
| Somchem S365ᴾ | <<locked>> | 100% | 37,405 psi | 79% | 2533 fps | 97.6% |
| Vihtavuori N133 | <<locked>> | 84% | 41,510 psi | 88% | 2425 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 41,336 psi | 88% | 2493 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 42,409 psi | 90% | 2497 fps | 99.8% |
| Vihtavuori N150 | <<locked>> | 94% | 41,423 psi | 88% | 2500 fps | 98.6% |
| Vihtavuori N530 | <<locked>> | 82% | 39,769 psi | 84% | 2451 fps | 97.8% |
| Vihtavuori N540 | <<locked>> | 88% | 40,814 psi | 87% | 2487 fps | 99.5% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 40,364 psi | 86% | 2484 fps | 96.9% |
| Winchester 748 | <<locked>> | 84% | 41,234 psi | 87% | 2539 fps | 98.8% |
| Winchester StaBALL Match | <<locked>> | 86% | 40,582 psi | 86% | 2513 fps | 97.3% |
Start Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 38,928 psi | 83% | 2402 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 31,299 psi | 66% | 2306 fps | 99.7% |
| Accurate 2520 | <<locked>> | 80% | 37,405 psi | 79% | 2441 fps | 98.7% |
| Accurate 4064 | <<locked>> | 80% | 29,631 psi | 63% | 2283 fps | 97.6% |
| ADI AR 2206H | <<locked>> | 80% | 35,563 psi | 75% | 2388 fps | 95% |
| ADI AR 2208 | <<locked>> | 88% | 38,783 psi | 82% | 2441 fps | 95.2% |
| ADI Benchmark 8208 | <<locked>> | 80% | 37,550 psi | 80% | 2408 fps | 97.1% |
| Alliant AR-Comp | <<locked>> | 80% | 36,143 psi | 77% | 2425 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 33,315 psi | 71% | 2365 fps | 95.4% |
| Alliant Reloder-15 | <<locked>> | 86% | 38,551 psi | 82% | 2474 fps | 95.4% |
| Alliant Reloder-17 | <<locked>> | 92% | 37,565 psi | 80% | 2526 fps | 95.9% |
| Bofors RP3 | <<locked>> | 84% | 32,532 psi | 69% | 2362 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 39,856 psi | 85% | 2415 fps | 98.2% |
| Hodgdon BL-C2 | <<locked>> | 80% | 35,491 psi | 75% | 2421 fps | 97.2% |
| Hodgdon CFE223 | <<locked>> | 80% | 38,986 psi | 83% | 2533 fps | 95.5% |
| Hodgdon H4895 | <<locked>> | 80% | 35,795 psi | 76% | 2402 fps | 95.8% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 36,434 psi | 77% | 2444 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 34,040 psi | 72% | 2411 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,512 psi | 54% | 1440 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 34,534 psi | 73% | 2359 fps | 95.3% |
| IMR 3031 | <<locked>> | 80% | 34,606 psi | 73% | 2418 fps | 99.7% |
| IMR 4064 | <<locked>> | 86% | 38,566 psi | 82% | 2431 fps | 95.5% |
| IMR 4895 | <<locked>> | 84% | 36,695 psi | 78% | 2448 fps | 95.6% |
| IMR 8208 XBR | <<locked>> | 80% | 37,550 psi | 80% | 2408 fps | 97.1% |
| Lovex D073.6 | <<locked>> | 80% | 33,692 psi | 71% | 2372 fps | 97.8% |
| Lovex S060 | <<locked>> | 80% | 36,550 psi | 78% | 2343 fps | 95.4% |
| Lovex S062 | <<locked>> | 80% | 31,299 psi | 66% | 2283 fps | 95.1% |
| Norma 201 | <<locked>> | 80% | 34,954 psi | 74% | 2352 fps | 96.4% |
| Norma 202 | <<locked>> | 80% | 35,041 psi | 74% | 2375 fps | 98.7% |
| Norma 203B | <<locked>> | 84% | 35,201 psi | 75% | 2408 fps | 95% |
| Ramshot Big Game | <<locked>> | 86% | 37,173 psi | 79% | 2467 fps | 95.3% |
| Ramshot Wild Boar | <<locked>> | 80% | 36,506 psi | 77% | 2421 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,715 psi | 55% | 1476 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 39,508 psi | 84% | 2559 fps | 95.7% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 30,937 psi | 66% | 2369 fps | 95.8% |
| Rottweil R 901 | <<locked>> | 80% | 38,638 psi | 82% | 2411 fps | 99.1% |
| Rottweil R 902 | <<locked>> | 80% | 33,286 psi | 71% | 2310 fps | 95.8% |
| Rottweil R 903 | <<locked>> | 88% | 34,621 psi | 73% | 2402 fps | 95.7% |
| Shooters World Match Rifle | <<locked>> | 80% | 33,692 psi | 71% | 2372 fps | 97.8% |
| Shooters World Precision | <<locked>> | 80% | 31,299 psi | 66% | 2283 fps | 95.1% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 36,405 psi | 77% | 2454 fps | 95.1% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 36,593 psi | 78% | 2411 fps | 95.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 36,840 psi | 78% | 2333 fps | 98.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 30,052 psi | 64% | 2205 fps | 98.2% |
| Somchem S335 | <<locked>> | 80% | 36,187 psi | 77% | 2336 fps | 99.4% |
| Somchem S341 | <<locked>> | 82% | 37,304 psi | 79% | 2421 fps | 95.5% |
| Somchem S355 | <<locked>> | 86% | 33,823 psi | 72% | 2365 fps | 95.1% |
| Somchem S365 | <<locked>> | 94% | 31,082 psi | 66% | 2379 fps | 95% |
| Vihtavuori N133 | <<locked>> | 80% | 36,854 psi | 78% | 2343 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 31,966 psi | 68% | 2313 fps | 99.7% |
| Vihtavuori N140 | <<locked>> | 80% | 32,924 psi | 70% | 2310 fps | 98.5% |
| Vihtavuori N150 | <<locked>> | 84% | 30,037 psi | 64% | 2260 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 80% | 37,289 psi | 79% | 2402 fps | 97.1% |
| Vihtavuori N540 | <<locked>> | 80% | 31,546 psi | 67% | 2293 fps | 97.6% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 35,534 psi | 75% | 2382 fps | 95.2% |
| Winchester 748 | <<locked>> | 80% | 35,984 psi | 76% | 2434 fps | 97.6% |
| Winchester StaBALL Match | <<locked>> | 80% | 33,359 psi | 71% | 2359 fps | 95% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 81 powders for 6.5 x 52 R K&S loaded with the .264 | 121gr | SUS-TAC LRT. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,648 fps; across all powders the maximum-charge window runs from 1,614 fps to 2,648 fps. Accurate 4350 gives the best case fill at 100 %, and 81 of the 81 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (325 MPa), the top charges use 64–90 %, leaving at least 10 % headroom. The 121.0 gr projectile in 0.264" calls for a 1:8.0 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Alliant Reloder-23 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, Alliant Reloder-23, Hodgdon H380, IMR 4166 Enduron 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.