Load Specifications
Load data in caliber 6 x 52 R BB2 with .243 | 106gr | SUS-TAC HP bullet and 62 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 Hodgdon LEVERevolution.
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% | 41,829 psi | 87% | 2385 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 41,075 psi | 86% | 2431 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 42,975 psi | 90% | 2477 fps | 99.6% |
| Accurate 4064 | <<locked>> | 90% | 41,263 psi | 86% | 2464 fps | 99.9% |
| Accurate 4350ᴾ | <<locked>> | 100% | 41,901 psi | 88% | 2530 fps | 96% |
| ADI AR 2206H | <<locked>> | 84% | 40,756 psi | 85% | 2431 fps | 97% |
| ADI AR 2208 | <<locked>> | 90% | 41,771 psi | 87% | 2434 fps | 96.5% |
| ADI Benchmark 8208 | <<locked>> | 84% | 42,946 psi | 90% | 2448 fps | 98.6% |
| Alliant AR-Comp | <<locked>> | 84% | 41,684 psi | 87% | 2451 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 42,366 psi | 89% | 2552 fps | 96.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 43,134 psi | 90% | 2497 fps | 98.4% |
| Alliant Reloder-15 | <<locked>> | 88% | 41,379 psi | 86% | 2467 fps | 96.6% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 42,757 psi | 89% | 2536 fps | 96.1% |
| Alliant Reloder-17 | <<locked>> | 96% | 43,178 psi | 90% | 2579 fps | 98% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 42,409 psi | 89% | 2480 fps | 96.2% |
| Bofors RP3 | <<locked>> | 92% | 42,540 psi | 89% | 2500 fps | 98.4% |
| Hodgdon Benchmark | <<locked>> | 82% | 42,815 psi | 89% | 2405 fps | 98.9% |
| Hodgdon BL-C2 | <<locked>> | 84% | 40,930 psi | 86% | 2464 fps | 98.7% |
| Hodgdon CFE223 | <<locked>> | 82% | 42,134 psi | 88% | 2533 fps | 96.8% |
| Hodgdon H4895 | <<locked>> | 84% | 41,002 psi | 86% | 2444 fps | 97.6% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 38,885 psi | 81% | 2431 fps | 96.8% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 41,785 psi | 87% | 2510 fps | 98.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,447 psi | 72% | 1572 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 42,192 psi | 88% | 2451 fps | 97.8% |
| IMR 3031 | <<locked>> | 86% | 42,264 psi | 88% | 2493 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 41,118 psi | 86% | 2415 fps | 96.6% |
| IMR 4895 | <<locked>> | 88% | 42,351 psi | 88% | 2497 fps | 97.5% |
| IMR 8208 XBR | <<locked>> | 84% | 42,946 psi | 90% | 2448 fps | 98.6% |
| Lovex D073.6 | <<locked>> | 86% | 41,800 psi | 87% | 2467 fps | 99.5% |
| Lovex S060 | <<locked>> | 84% | 41,524 psi | 87% | 2379 fps | 97.2% |
| Lovex S062 | <<locked>> | 88% | 40,741 psi | 85% | 2425 fps | 98.3% |
| Norma 201 | <<locked>> | 86% | 42,322 psi | 88% | 2438 fps | 98.5% |
| Norma 202 | <<locked>> | 86% | 42,627 psi | 89% | 2454 fps | 99.8% |
| Norma 203B | <<locked>> | 88% | 40,625 psi | 85% | 2454 fps | 97.1% |
| Norma URPᴾ | <<locked>> | 100% | 42,699 psi | 89% | 2530 fps | 96% |
| Ramshot Big Game | <<locked>> | 90% | 43,033 psi | 90% | 2516 fps | 97.4% |
| Ramshot Wild Boar | <<locked>> | 84% | 41,989 psi | 88% | 2464 fps | 97.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,751 psi | 73% | 1611 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 42,815 psi | 89% | 2556 fps | 97% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 43,192 psi | 90% | 2592 fps | 99.7% |
| Rottweil R 901 | <<locked>> | 82% | 41,263 psi | 86% | 2398 fps | 99.6% |
| Rottweil R 902 | <<locked>> | 88% | 43,076 psi | 90% | 2444 fps | 98.6% |
| Rottweil R 903 | <<locked>> | 94% | 42,438 psi | 89% | 2490 fps | 98.1% |
| Shooters World Match Rifle | <<locked>> | 86% | 41,800 psi | 87% | 2467 fps | 99.5% |
| Shooters World Precision | <<locked>> | 88% | 40,741 psi | 85% | 2425 fps | 98.3% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 41,568 psi | 87% | 2497 fps | 97.1% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 41,814 psi | 87% | 2451 fps | 97.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 42,076 psi | 88% | 2369 fps | 99.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 41,147 psi | 86% | 2362 fps | 100% |
| Somchem S335 | <<locked>> | 84% | 41,365 psi | 86% | 2369 fps | 99.9% |
| Somchem S341 | <<locked>> | 86% | 43,265 psi | 90% | 2467 fps | 97.5% |
| Somchem S355 | <<locked>> | 92% | 41,263 psi | 86% | 2454 fps | 97.7% |
| Somchem S365ᴾ | <<locked>> | 100% | 37,724 psi | 79% | 2477 fps | 98% |
| Vihtavuori N133 | <<locked>> | 84% | 42,061 psi | 88% | 2369 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 41,698 psi | 87% | 2431 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 42,888 psi | 90% | 2438 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 94% | 41,785 psi | 87% | 2438 fps | 98.8% |
| Vihtavuori N530 | <<locked>> | 84% | 43,120 psi | 90% | 2448 fps | 98.7% |
| Vihtavuori N540 | <<locked>> | 88% | 41,147 psi | 86% | 2428 fps | 99.7% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 40,872 psi | 85% | 2428 fps | 97.4% |
| Winchester 748 | <<locked>> | 84% | 41,930 psi | 88% | 2487 fps | 99.1% |
| Winchester StaBALL Match | <<locked>> | 86% | 41,191 psi | 86% | 2461 fps | 97.7% |
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 2015 | <<locked>> | 80% | 39,117 psi | 82% | 2339 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 31,575 psi | 66% | 2251 fps | 99.8% |
| Accurate 2520 | <<locked>> | 80% | 37,652 psi | 79% | 2382 fps | 98.9% |
| Accurate 4064 | <<locked>> | 80% | 29,849 psi | 62% | 2231 fps | 98% |
| Accurate 4350 | <<locked>> | 98% | 39,001 psi | 81% | 2477 fps | 95.2% |
| ADI AR 2206H | <<locked>> | 80% | 35,810 psi | 75% | 2333 fps | 95.5% |
| ADI AR 2208 | <<locked>> | 86% | 37,144 psi | 78% | 2343 fps | 95.1% |
| ADI Benchmark 8208 | <<locked>> | 80% | 37,782 psi | 79% | 2349 fps | 97.5% |
| Alliant AR-Comp | <<locked>> | 80% | 36,622 psi | 77% | 2365 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 39,305 psi | 82% | 2490 fps | 95.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 31,314 psi | 65% | 2257 fps | 95% |
| Alliant Reloder-15 | <<locked>> | 84% | 36,332 psi | 76% | 2365 fps | 95.1% |
| Alliant Reloder-16 | <<locked>> | 98% | 40,582 psi | 85% | 2493 fps | 95.4% |
| Alliant Reloder-17 | 27.7 gr | 90% | 35,650 psi | 74% | 2418 fps | 95.6% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 39,798 psi | 83% | 2431 fps | 95.5% |
| Bofors RP3 | <<locked>> | 84% | 32,851 psi | 69% | 2310 fps | 95.8% |
| Hodgdon Benchmark | <<locked>> | 80% | 40,205 psi | 84% | 2356 fps | 98.5% |
| Hodgdon BL-C2 | <<locked>> | 80% | 35,868 psi | 75% | 2365 fps | 97.6% |
| Hodgdon CFE223 | <<locked>> | 80% | 39,494 psi | 83% | 2480 fps | 96% |
| Hodgdon H4895 | <<locked>> | 80% | 35,998 psi | 75% | 2343 fps | 96.3% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 34,519 psi | 72% | 2339 fps | 95.3% |
| Hodgdon LEVERevolution | 24.5 gr | 80% | 32,314 psi | 68% | 2306 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,483 psi | 53% | 1401 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 35,041 psi | 73% | 2310 fps | 95.8% |
| IMR 3031 | <<locked>> | 80% | 34,650 psi | 72% | 2352 fps | 99.8% |
| IMR 4064 | <<locked>> | 84% | 36,448 psi | 76% | 2323 fps | 95.1% |
| IMR 4895 | <<locked>> | 82% | 34,751 psi | 73% | 2343 fps | 95.3% |
| IMR 8208 XBR | <<locked>> | 80% | 37,782 psi | 79% | 2349 fps | 97.5% |
| Lovex D073.6 | <<locked>> | 80% | 34,171 psi | 71% | 2320 fps | 98.2% |
| Lovex S060 | <<locked>> | 80% | 36,970 psi | 77% | 2290 fps | 95.9% |
| Lovex S062 | <<locked>> | 80% | 31,749 psi | 66% | 2234 fps | 95.7% |
| Norma 201 | <<locked>> | 80% | 35,172 psi | 73% | 2297 fps | 96.8% |
| Norma 202 | <<locked>> | 80% | 35,360 psi | 74% | 2320 fps | 99% |
| Norma 203B | <<locked>> | 84% | 35,665 psi | 75% | 2356 fps | 95.6% |
| Norma URP | <<locked>> | 98% | 40,030 psi | 84% | 2480 fps | 95.2% |
| Ramshot Big Game | <<locked>> | 86% | 37,521 psi | 78% | 2408 fps | 95.8% |
| Ramshot Wild Boar | <<locked>> | 80% | 36,579 psi | 76% | 2359 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,831 psi | 54% | 1440 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 37,449 psi | 78% | 2451 fps | 95.4% |
| ReloadSwiss RS 60 | 25.2 gr | 82% | 29,283 psi | 61% | 2264 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 39,059 psi | 82% | 2356 fps | 99.3% |
| Rottweil R 902 | <<locked>> | 80% | 33,591 psi | 70% | 2257 fps | 96.3% |
| Rottweil R 903 | <<locked>> | 86% | 32,750 psi | 68% | 2300 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 34,171 psi | 71% | 2320 fps | 98.2% |
| Shooters World Precision | <<locked>> | 80% | 31,749 psi | 66% | 2234 fps | 95.7% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 36,608 psi | 76% | 2395 fps | 95.6% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 34,534 psi | 72% | 2306 fps | 95% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 37,202 psi | 78% | 2280 fps | 99.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 30,356 psi | 63% | 2156 fps | 98.6% |
| Somchem S335 | <<locked>> | 80% | 36,390 psi | 76% | 2280 fps | 99.5% |
| Somchem S341 | <<locked>> | 80% | 35,273 psi | 74% | 2313 fps | 95.2% |
| Somchem S355 | <<locked>> | 86% | 33,895 psi | 71% | 2306 fps | 95.5% |
| Somchem S365 | <<locked>> | 94% | 31,488 psi | 66% | 2329 fps | 95.7% |
| Vihtavuori N133 | <<locked>> | 80% | 37,202 psi | 78% | 2283 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 32,358 psi | 68% | 2260 fps | 99.9% |
| Vihtavuori N140 | <<locked>> | 80% | 33,315 psi | 70% | 2260 fps | 98.8% |
| Vihtavuori N150 | <<locked>> | 82% | 28,616 psi | 60% | 2165 fps | 95% |
| Vihtavuori N530 | <<locked>> | 80% | 37,739 psi | 79% | 2349 fps | 97.6% |
| Vihtavuori N540 | <<locked>> | 80% | 31,763 psi | 66% | 2241 fps | 98% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 35,752 psi | 75% | 2323 fps | 95.7% |
| Winchester 748 | <<locked>> | 80% | 36,347 psi | 76% | 2379 fps | 98% |
| Winchester StaBALL Match | <<locked>> | 80% | 33,518 psi | 70% | 2303 fps | 95.4% |
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 62 powders for 6 x 52 R BB2 loaded with the .243 | 106gr | SUS-TAC HP. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,592 fps; across all powders the maximum-charge window runs from 1,572 fps to 2,592 fps. Accurate 4350 gives the best case fill at 100 %, and 62 of the 62 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (330 MPa), the top charges use 72–90 %, leaving at least 10 % headroom. The 106.0 gr projectile in 0.243" calls for a 1:7.0 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Hodgdon Hybrid 100V 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, Hodgdon LEVERevolution rank at the top here: for 6 x 52 R BB2 with the .243 | 106gr | SUS-TAC HP 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.