Load Specifications
Load data in caliber 6 x 52 R BB2 with .243 | 100gr | Sellier & Bellot SP bullet and 60 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 SNPE Vectan SP 11.
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>> | 86% | 41,524 psi | 87% | 2539 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 43,033 psi | 90% | 2582 fps | 99.7% |
| Accurate 4064 | <<locked>> | 88% | 41,495 psi | 87% | 2569 fps | 99.9% |
| Accurate 4350 | <<locked>> | 98% | 42,583 psi | 89% | 2648 fps | 96.3% |
| ADI AR 2206H | <<locked>> | 84% | 43,091 psi | 90% | 2585 fps | 97.6% |
| ADI AR 2208 | <<locked>> | 88% | 41,626 psi | 87% | 2539 fps | 96.5% |
| ADI Benchmark 8208 | <<locked>> | 82% | 42,772 psi | 89% | 2556 fps | 98.6% |
| Alliant AR-Comp | <<locked>> | 82% | 41,742 psi | 87% | 2556 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 41,916 psi | 88% | 2657 fps | 96.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 43,308 psi | 90% | 2608 fps | 98.5% |
| Alliant Reloder-15 | <<locked>> | 86% | 41,336 psi | 86% | 2572 fps | 96.7% |
| Alliant Reloder-16 | <<locked>> | 98% | 42,728 psi | 89% | 2651 fps | 96.3% |
| Alliant Reloder-17 | <<locked>> | 94% | 43,250 psi | 90% | 2694 fps | 98.2% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 42,221 psi | 88% | 2585 fps | 96.3% |
| Bofors RP3 | <<locked>> | 90% | 42,989 psi | 90% | 2615 fps | 98.6% |
| Hodgdon BL-C2 | <<locked>> | 82% | 40,756 psi | 85% | 2566 fps | 98.7% |
| Hodgdon H4895 | <<locked>> | 82% | 40,930 psi | 86% | 2549 fps | 97.7% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 41,872 psi | 87% | 2598 fps | 97.8% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 41,727 psi | 87% | 2618 fps | 98.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,795 psi | 73% | 1667 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 41,800 psi | 87% | 2552 fps | 97.8% |
| IMR 3031 | <<locked>> | 84% | 42,482 psi | 89% | 2605 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 40,799 psi | 85% | 2516 fps | 96.6% |
| IMR 4831 | <<locked>> | 98% | 40,988 psi | 86% | 2598 fps | 95.9% |
| IMR 4895 | <<locked>> | 86% | 42,293 psi | 88% | 2602 fps | 97.6% |
| IMR 8208 XBR | <<locked>> | 82% | 42,772 psi | 89% | 2556 fps | 98.6% |
| Lovex D073.6 | <<locked>> | 84% | 41,423 psi | 87% | 2566 fps | 99.5% |
| Lovex S060 | <<locked>> | 82% | 41,089 psi | 86% | 2480 fps | 97.2% |
| Lovex S062 | <<locked>> | 88% | 43,004 psi | 90% | 2572 fps | 98.8% |
| Norma 201 | <<locked>> | 84% | 42,177 psi | 88% | 2543 fps | 98.6% |
| Norma 202 | <<locked>> | 84% | 42,511 psi | 89% | 2559 fps | 99.8% |
| Norma 203B | <<locked>> | 88% | 43,047 psi | 90% | 2608 fps | 97.7% |
| Norma URP | <<locked>> | 98% | 42,743 psi | 89% | 2641 fps | 96.2% |
| Ramshot Big Game | <<locked>> | 88% | 42,946 psi | 90% | 2625 fps | 97.5% |
| Ramshot Wild Boar | <<locked>> | 82% | 41,727 psi | 87% | 2569 fps | 97.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,041 psi | 73% | 1706 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 42,975 psi | 90% | 2671 fps | 97.1% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 43,134 psi | 90% | 2703 fps | 99.7% |
| Rottweil R 902 | <<locked>> | 86% | 42,859 psi | 90% | 2549 fps | 98.7% |
| Rottweil R 903 | <<locked>> | 92% | 42,859 psi | 90% | 2605 fps | 98.3% |
| Shooters World Match Rifle | <<locked>> | 84% | 41,423 psi | 87% | 2566 fps | 99.5% |
| Shooters World Precision | <<locked>> | 88% | 43,004 psi | 90% | 2572 fps | 98.8% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 41,539 psi | 87% | 2605 fps | 97.2% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 41,611 psi | 87% | 2556 fps | 97.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 41,423 psi | 87% | 2464 fps | 99.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 41,205 psi | 86% | 2470 fps | 100% |
| Somchem S335 | <<locked>> | 82% | 40,959 psi | 86% | 2467 fps | 99.9% |
| Somchem S341 | <<locked>> | 84% | 43,062 psi | 90% | 2572 fps | 97.5% |
| Somchem S355 | <<locked>> | 90% | 41,060 psi | 86% | 2559 fps | 97.7% |
| Somchem S365ᴾ | <<locked>> | 100% | 40,466 psi | 85% | 2641 fps | 98.8% |
| Vihtavuori N133 | <<locked>> | 82% | 41,466 psi | 87% | 2464 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 41,423 psi | 87% | 2530 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 42,888 psi | 90% | 2543 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 92% | 42,018 psi | 88% | 2549 fps | 98.9% |
| Vihtavuori N160 | <<locked>> | 96% | 42,221 psi | 88% | 2592 fps | 95.9% |
| Vihtavuori N530 | <<locked>> | 82% | 42,830 psi | 89% | 2552 fps | 98.7% |
| Vihtavuori N540 | <<locked>> | 86% | 41,278 psi | 86% | 2533 fps | 99.7% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 43,279 psi | 90% | 2582 fps | 98.2% |
| Winchester 748 | <<locked>> | 82% | 41,539 psi | 87% | 2585 fps | 99.1% |
| Winchester StaBALL Match | <<locked>> | 84% | 40,843 psi | 85% | 2559 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 2495 | <<locked>> | 80% | 33,736 psi | 70% | 2392 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 40,059 psi | 84% | 2530 fps | 99.3% |
| Accurate 4064 | <<locked>> | 80% | 31,923 psi | 67% | 2372 fps | 98.5% |
| Accurate 4350 | <<locked>> | 96% | 39,450 psi | 82% | 2589 fps | 95.4% |
| ADI AR 2206H | <<locked>> | 80% | 37,956 psi | 79% | 2484 fps | 96.3% |
| ADI AR 2208 | <<locked>> | 84% | 36,651 psi | 77% | 2438 fps | 95% |
| ADI Benchmark 8208 | <<locked>> | 80% | 39,943 psi | 83% | 2500 fps | 98% |
| Alliant AR-Comp | <<locked>> | 80% | 39,073 psi | 82% | 2510 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 39,175 psi | 82% | 2595 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 31,415 psi | 66% | 2356 fps | 95.1% |
| Alliant Reloder-15 | <<locked>> | 82% | 36,361 psi | 76% | 2467 fps | 95.1% |
| Alliant Reloder-16 | <<locked>> | 96% | 40,350 psi | 84% | 2598 fps | 95.5% |
| Alliant Reloder-17 | 30 gr | 88% | 35,331 psi | 74% | 2516 fps | 95.6% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 39,479 psi | 82% | 2533 fps | 95.5% |
| Bofors RP3 | <<locked>> | 82% | 32,953 psi | 69% | 2405 fps | 95.8% |
| Hodgdon BL-C2 | <<locked>> | 80% | 38,072 psi | 80% | 2510 fps | 98.2% |
| Hodgdon H4895 | <<locked>> | 80% | 38,247 psi | 80% | 2493 fps | 97% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 34,708 psi | 73% | 2448 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 34,330 psi | 72% | 2457 fps | 96.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,817 psi | 54% | 1490 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 36,782 psi | 77% | 2448 fps | 96.5% |
| IMR 3031 | <<locked>> | 80% | 36,999 psi | 77% | 2503 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 36,230 psi | 76% | 2421 fps | 95.2% |
| IMR 4831 | <<locked>> | 96% | 38,203 psi | 80% | 2543 fps | 95% |
| IMR 4895 | <<locked>> | 80% | 34,693 psi | 72% | 2441 fps | 95.3% |
| IMR 8208 XBR | <<locked>> | 80% | 39,943 psi | 83% | 2500 fps | 98% |
| Lovex D073.6 | <<locked>> | 80% | 36,318 psi | 76% | 2464 fps | 98.7% |
| Lovex S060 | <<locked>> | 80% | 38,769 psi | 81% | 2434 fps | 96.5% |
| Lovex S062 | <<locked>> | 80% | 33,620 psi | 70% | 2379 fps | 96.4% |
| Norma 201 | <<locked>> | 80% | 37,115 psi | 78% | 2441 fps | 97.4% |
| Norma 202 | <<locked>> | 80% | 37,318 psi | 78% | 2461 fps | 99.3% |
| Norma 203B | <<locked>> | 82% | 35,708 psi | 75% | 2457 fps | 95.6% |
| Norma URP | <<locked>> | 96% | 40,292 psi | 84% | 2592 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 82% | 35,070 psi | 73% | 2461 fps | 95% |
| Ramshot Wild Boar | <<locked>> | 80% | 38,986 psi | 81% | 2513 fps | 96.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,759 psi | 54% | 1519 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 37,260 psi | 78% | 2549 fps | 95.4% |
| ReloadSwiss RS 60 | 27.3 gr | 80% | 29,095 psi | 61% | 2359 fps | 95.3% |
| Rottweil R 902 | <<locked>> | 80% | 35,549 psi | 74% | 2402 fps | 97% |
| Rottweil R 903 | <<locked>> | 84% | 32,866 psi | 69% | 2395 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 36,318 psi | 76% | 2464 fps | 98.7% |
| Shooters World Precision | <<locked>> | 80% | 33,620 psi | 70% | 2379 fps | 96.4% |
| SNPE Vectan SP 11 | 28.9 gr | 86% | 36,680 psi | 77% | 2503 fps | 95.7% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 36,724 psi | 77% | 2454 fps | 95.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 38,957 psi | 81% | 2418 fps | 99.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 31,937 psi | 67% | 2287 fps | 99% |
| Somchem S335 | <<locked>> | 80% | 38,276 psi | 80% | 2418 fps | 99.7% |
| Somchem S341 | <<locked>> | 80% | 37,579 psi | 79% | 2464 fps | 96% |
| Somchem S355 | <<locked>> | 84% | 34,026 psi | 71% | 2408 fps | 95.6% |
| Somchem S365 | <<locked>> | 92% | 31,662 psi | 66% | 2434 fps | 95.9% |
| Vihtavuori N133 | <<locked>> | 80% | 39,030 psi | 82% | 2421 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 34,330 psi | 72% | 2398 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 35,143 psi | 73% | 2395 fps | 99.2% |
| Vihtavuori N150 | <<locked>> | 82% | 30,414 psi | 64% | 2303 fps | 95.8% |
| Vihtavuori N160 | <<locked>> | 94% | 39,813 psi | 83% | 2546 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 80% | 39,929 psi | 83% | 2497 fps | 98.1% |
| Vihtavuori N540 | <<locked>> | 80% | 33,968 psi | 71% | 2385 fps | 98.6% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 35,592 psi | 74% | 2425 fps | 95.9% |
| Winchester 748 | <<locked>> | 80% | 38,711 psi | 81% | 2530 fps | 98.6% |
| Winchester StaBALL Match | <<locked>> | 80% | 35,592 psi | 74% | 2451 fps | 96.2% |
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 60 powders for 6 x 52 R BB2 loaded with the .243 | 100gr | Sellier & Bellot SP. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,703 fps; across all powders the maximum-charge window runs from 1,667 fps to 2,703 fps. Hodgdon Hybrid 100V gives the best case fill at 100 %, and 60 of the 60 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (330 MPa), the top charges use 73–90 %, leaving at least 10 % headroom. The 100.0 gr projectile in 0.243" calls for a 1:10.5 twist; slower twists will usually not stabilise this weight. Hodgdon Hybrid 100V, 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, SNPE Vectan SP 11 rank at the top here: for 6 x 52 R BB2 with the .243 | 100gr | Sellier & Bellot SP 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.