Load Specifications
Load data in caliber 6 x 52 R BB2 with .243 | 105gr | Lapua ScenarL 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 Ramshot Big Game.
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 2015 | <<locked>> | 82% | 43,120 psi | 90% | 2434 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 43,192 psi | 90% | 2487 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 42,163 psi | 88% | 2490 fps | 99.6% |
| Accurate 4064 | <<locked>> | 90% | 43,236 psi | 90% | 2523 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 41,075 psi | 86% | 2543 fps | 96% |
| ADI AR 2206H | <<locked>> | 84% | 42,177 psi | 88% | 2490 fps | 97.6% |
| ADI AR 2208 | <<locked>> | 88% | 40,828 psi | 85% | 2448 fps | 96.5% |
| ADI Benchmark 8208 | <<locked>> | 82% | 41,727 psi | 87% | 2454 fps | 98.5% |
| Alliant AR-Comp | <<locked>> | 82% | 40,756 psi | 85% | 2461 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 41,176 psi | 86% | 2559 fps | 96.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 42,177 psi | 88% | 2510 fps | 98.4% |
| Alliant Reloder-15 | <<locked>> | 88% | 43,134 psi | 90% | 2526 fps | 97.3% |
| Alliant Reloder-16 | <<locked>> | 98% | 41,785 psi | 87% | 2549 fps | 96.1% |
| Alliant Reloder-17 | <<locked>> | 94% | 42,076 psi | 88% | 2589 fps | 98% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 41,350 psi | 86% | 2490 fps | 96.2% |
| Bofors RP3 | <<locked>> | 90% | 42,018 psi | 88% | 2520 fps | 98.5% |
| Hodgdon BL-C2 | <<locked>> | 84% | 42,612 psi | 89% | 2523 fps | 99.1% |
| Hodgdon H4895 | <<locked>> | 84% | 42,467 psi | 89% | 2500 fps | 98.2% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 40,567 psi | 85% | 2493 fps | 97.6% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 40,756 psi | 85% | 2516 fps | 98.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,432 psi | 72% | 1598 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 40,901 psi | 85% | 2454 fps | 97.7% |
| IMR 3031 | <<locked>> | 84% | 41,655 psi | 87% | 2510 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 42,888 psi | 90% | 2477 fps | 97.3% |
| IMR 4831ᴾ | <<locked>> | 100% | 42,250 psi | 88% | 2543 fps | 96.4% |
| IMR 4895 | <<locked>> | 86% | 41,046 psi | 86% | 2500 fps | 97.4% |
| IMR 8208 XBR | <<locked>> | 82% | 41,727 psi | 87% | 2454 fps | 98.5% |
| Lovex D073.6 | <<locked>> | 86% | 43,279 psi | 90% | 2520 fps | 99.7% |
| Lovex S060 | <<locked>> | 84% | 42,902 psi | 90% | 2434 fps | 97.7% |
| Lovex S062 | <<locked>> | 88% | 42,192 psi | 88% | 2477 fps | 98.7% |
| Norma 201 | <<locked>> | 84% | 41,539 psi | 87% | 2451 fps | 98.6% |
| Norma 202 | <<locked>> | 84% | 41,452 psi | 87% | 2464 fps | 99.8% |
| Norma 203B | <<locked>> | 88% | 42,351 psi | 88% | 2516 fps | 97.7% |
| Norma URP | <<locked>> | 98% | 41,800 psi | 87% | 2546 fps | 96% |
| Ramshot Big Game | <<locked>> | 88% | 41,829 psi | 87% | 2523 fps | 97.3% |
| Ramshot Wild Boar | <<locked>> | 82% | 40,640 psi | 85% | 2467 fps | 97.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,722 psi | 73% | 1634 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 41,814 psi | 87% | 2566 fps | 97% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 42,221 psi | 88% | 2605 fps | 99.7% |
| Rottweil R 901 | <<locked>> | 82% | 42,917 psi | 90% | 2454 fps | 99.8% |
| Rottweil R 902 | <<locked>> | 86% | 41,858 psi | 87% | 2451 fps | 98.6% |
| Rottweil R 903 | <<locked>> | 92% | 41,858 psi | 87% | 2510 fps | 98.2% |
| Shooters World Match Rifle | <<locked>> | 86% | 43,279 psi | 90% | 2520 fps | 99.7% |
| Shooters World Precision | <<locked>> | 88% | 42,192 psi | 88% | 2477 fps | 98.7% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 40,828 psi | 85% | 2513 fps | 97.1% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 40,886 psi | 85% | 2464 fps | 97.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 43,178 psi | 90% | 2415 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 42,960 psi | 90% | 2421 fps | 100% |
| Somchem S335 | <<locked>> | 84% | 42,757 psi | 89% | 2421 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 42,163 psi | 88% | 2477 fps | 97.4% |
| Somchem S355 | <<locked>> | 92% | 42,960 psi | 90% | 2516 fps | 98.2% |
| Somchem S365ᴾ | <<locked>> | 100% | 39,711 psi | 83% | 2546 fps | 98.7% |
| Vihtavuori N133 | <<locked>> | 84% | 43,221 psi | 90% | 2415 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 40,640 psi | 85% | 2438 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 42,032 psi | 88% | 2451 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 92% | 41,147 psi | 86% | 2457 fps | 98.9% |
| Vihtavuori N530 | <<locked>> | 82% | 41,814 psi | 87% | 2454 fps | 98.6% |
| Vihtavuori N540 | <<locked>> | 88% | 42,786 psi | 89% | 2484 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 98% | 43,149 psi | 90% | 2552 fps | 96.1% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 42,076 psi | 88% | 2484 fps | 98% |
| Winchester 748 | <<locked>> | 82% | 40,654 psi | 85% | 2490 fps | 99.1% |
| Winchester StaBALL Match | <<locked>> | 86% | 42,815 psi | 89% | 2516 fps | 98.3% |
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% | 40,466 psi | 85% | 2388 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 33,199 psi | 69% | 2310 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 39,102 psi | 82% | 2434 fps | 99.3% |
| Accurate 4064 | <<locked>> | 80% | 31,386 psi | 66% | 2290 fps | 98.6% |
| Accurate 4350 | <<locked>> | 96% | 38,363 psi | 80% | 2490 fps | 95.2% |
| ADI AR 2206H | <<locked>> | 80% | 37,260 psi | 78% | 2392 fps | 96.2% |
| ADI AR 2208 | <<locked>> | 86% | 38,421 psi | 80% | 2398 fps | 95.8% |
| ADI Benchmark 8208 | <<locked>> | 80% | 39,247 psi | 82% | 2408 fps | 98% |
| Alliant AR-Comp | <<locked>> | 80% | 38,058 psi | 80% | 2415 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 38,319 psi | 80% | 2500 fps | 95.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 30,676 psi | 64% | 2267 fps | 95% |
| Alliant Reloder-15 | <<locked>> | 82% | 35,404 psi | 74% | 2372 fps | 95% |
| Alliant Reloder-16 | <<locked>> | 96% | 39,349 psi | 82% | 2500 fps | 95.3% |
| Alliant Reloder-17 | 28.3 gr | 88% | 34,693 psi | 72% | 2428 fps | 95.5% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 38,522 psi | 80% | 2434 fps | 95.3% |
| Bofors RP3 | <<locked>> | 82% | 32,053 psi | 67% | 2313 fps | 95.7% |
| Hodgdon BL-C2 | <<locked>> | 80% | 37,202 psi | 78% | 2418 fps | 98.1% |
| Hodgdon H4895 | <<locked>> | 80% | 37,478 psi | 78% | 2405 fps | 96.9% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 33,997 psi | 71% | 2356 fps | 95.4% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 33,518 psi | 70% | 2362 fps | 96.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,788 psi | 54% | 1430 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 36,085 psi | 75% | 2359 fps | 96.4% |
| IMR 3031 | <<locked>> | 80% | 36,376 psi | 76% | 2415 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 35,520 psi | 74% | 2333 fps | 95.1% |
| IMR 4831 | <<locked>> | 98% | 39,624 psi | 83% | 2493 fps | 95.7% |
| IMR 4895 | <<locked>> | 80% | 33,953 psi | 71% | 2352 fps | 95.2% |
| IMR 8208 XBR | <<locked>> | 80% | 39,247 psi | 82% | 2408 fps | 98% |
| Lovex D073.6 | <<locked>> | 80% | 35,665 psi | 75% | 2379 fps | 98.7% |
| Lovex S060 | <<locked>> | 80% | 37,971 psi | 79% | 2339 fps | 96.4% |
| Lovex S062 | <<locked>> | 80% | 32,822 psi | 69% | 2287 fps | 96.3% |
| Norma 201 | <<locked>> | 80% | 36,666 psi | 77% | 2356 fps | 97.5% |
| Norma 202 | <<locked>> | 80% | 36,535 psi | 76% | 2369 fps | 99.3% |
| Norma 203B | <<locked>> | 82% | 34,737 psi | 73% | 2362 fps | 95.5% |
| Norma URP | <<locked>> | 96% | 39,262 psi | 82% | 2493 fps | 95.2% |
| Ramshot Big Game | 27.4 gr | 84% | 36,637 psi | 77% | 2421 fps | 95.8% |
| Ramshot Wild Boar | <<locked>> | 80% | 38,218 psi | 80% | 2421 fps | 96.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,759 psi | 54% | 1460 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 36,390 psi | 76% | 2454 fps | 95.3% |
| ReloadSwiss RS 60 | 25.7 gr | 80% | 28,456 psi | 59% | 2267 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 40,364 psi | 84% | 2408 fps | 99.6% |
| Rottweil R 902 | <<locked>> | 80% | 34,722 psi | 73% | 2306 fps | 96.9% |
| Rottweil R 903 | <<locked>> | 84% | 32,329 psi | 68% | 2313 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 35,665 psi | 75% | 2379 fps | 98.7% |
| Shooters World Precision | <<locked>> | 80% | 32,822 psi | 69% | 2287 fps | 96.3% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 35,766 psi | 75% | 2405 fps | 95.5% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 35,824 psi | 75% | 2362 fps | 95.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 38,406 psi | 80% | 2329 fps | 99.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 31,459 psi | 66% | 2205 fps | 99% |
| Somchem S335 | <<locked>> | 80% | 37,855 psi | 79% | 2333 fps | 99.8% |
| Somchem S341 | <<locked>> | 80% | 36,854 psi | 77% | 2375 fps | 96% |
| Somchem S355 | <<locked>> | 84% | 33,460 psi | 70% | 2323 fps | 95.6% |
| Somchem S365 | <<locked>> | 92% | 30,690 psi | 64% | 2336 fps | 95.7% |
| Vihtavuori N133 | <<locked>> | 80% | 38,479 psi | 80% | 2333 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 33,678 psi | 70% | 2310 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 34,374 psi | 72% | 2306 fps | 99.1% |
| Vihtavuori N150 | <<locked>> | 82% | 29,544 psi | 62% | 2215 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 80% | 39,233 psi | 82% | 2405 fps | 98.1% |
| Vihtavuori N540 | <<locked>> | 80% | 33,054 psi | 69% | 2293 fps | 98.5% |
| Vihtavuori N550 | <<locked>> | 96% | 40,147 psi | 84% | 2497 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 34,896 psi | 73% | 2336 fps | 95.7% |
| Winchester 748 | <<locked>> | 80% | 37,753 psi | 79% | 2434 fps | 98.5% |
| Winchester StaBALL Match | <<locked>> | 80% | 34,751 psi | 73% | 2356 fps | 96.1% |
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 | 105gr | Lapua ScenarL. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,605 fps; across all powders the maximum-charge window runs from 1,598 fps to 2,605 fps. Hodgdon Hybrid 100V 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 105.0 gr projectile in 0.243" calls for a 1:8.0 twist; slower twists will usually not stabilise this weight. Hodgdon Hybrid 100V, Hodgdon TrailBoss, IMR 4831 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, Ramshot Big Game rank at the top here: for 6 x 52 R BB2 with the .243 | 105gr | Lapua ScenarL 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.