Load Specifications
Load data in caliber 6 x 52 R BB2 with .243 | 90gr | Reichenberg HDB Universal bullet and 54 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Hodgdon LEVERevolution and Bofors RP3.
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% | 40,973 psi | 86% | 2612 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 42,902 psi | 90% | 2700 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 42,380 psi | 89% | 2703 fps | 99% |
| Accurate 4064 | <<locked>> | 92% | 43,149 psi | 90% | 2736 fps | 99.7% |
| ADI AR 2206H | <<locked>> | 86% | 42,424 psi | 89% | 2700 fps | 96.3% |
| ADI Benchmark 8208 | <<locked>> | 84% | 42,235 psi | 88% | 2671 fps | 97.6% |
| Alliant AR-Comp | <<locked>> | 84% | 40,741 psi | 85% | 2680 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 42,235 psi | 88% | 2717 fps | 97.3% |
| Alliant Reloder-15 | <<locked>> | 90% | 43,308 psi | 90% | 2736 fps | 96% |
| Alliant Reloder-17 | <<locked>> | 96% | 42,641 psi | 89% | 2799 fps | 96.7% |
| Bofors RP3 | <<locked>> | 92% | 41,713 psi | 87% | 2720 fps | 97.3% |
| Hodgdon Benchmark | <<locked>> | 82% | 41,742 psi | 87% | 2618 fps | 98% |
| Hodgdon BL-C2 | <<locked>> | 86% | 43,018 psi | 90% | 2736 fps | 98.3% |
| Hodgdon H4895 | <<locked>> | 86% | 42,685 psi | 89% | 2713 fps | 97% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 41,118 psi | 86% | 2730 fps | 97.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,997 psi | 71% | 1749 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 41,597 psi | 87% | 2671 fps | 96.6% |
| IMR 3031 | <<locked>> | 86% | 41,452 psi | 87% | 2726 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 43,062 psi | 90% | 2684 fps | 95.9% |
| IMR 4895 | <<locked>> | 88% | 41,379 psi | 86% | 2713 fps | 96.2% |
| IMR 8208 XBR | <<locked>> | 84% | 42,235 psi | 88% | 2671 fps | 97.6% |
| Lovex D073.6 | <<locked>> | 86% | 40,756 psi | 85% | 2684 fps | 98.7% |
| Lovex S060 | <<locked>> | 84% | 40,785 psi | 85% | 2595 fps | 95.8% |
| Lovex S062 | <<locked>> | 90% | 42,583 psi | 89% | 2694 fps | 97.8% |
| Norma 201 | <<locked>> | 86% | 41,510 psi | 87% | 2657 fps | 97.5% |
| Norma 202 | <<locked>> | 86% | 41,800 psi | 87% | 2680 fps | 99.3% |
| Norma 203B | <<locked>> | 90% | 42,511 psi | 89% | 2726 fps | 96.4% |
| Ramshot Big Game | <<locked>> | 90% | 42,308 psi | 88% | 2733 fps | 96% |
| Ramshot Wild Boar | <<locked>> | 84% | 41,278 psi | 86% | 2684 fps | 95.9% |
| Ramshot X-Terminator | <<locked>> | 82% | 42,960 psi | 90% | 2661 fps | 96.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,142 psi | 71% | 1788 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 42,554 psi | 89% | 2812 fps | 98.9% |
| Rottweil R 901 | <<locked>> | 84% | 42,917 psi | 90% | 2667 fps | 99.3% |
| Rottweil R 902 | <<locked>> | 88% | 42,192 psi | 88% | 2661 fps | 97.6% |
| Rottweil R 903 | <<locked>> | 94% | 41,611 psi | 87% | 2710 fps | 96.9% |
| Shooters World Match Rifle | <<locked>> | 86% | 40,756 psi | 85% | 2684 fps | 98.7% |
| Shooters World Precision | <<locked>> | 90% | 42,583 psi | 89% | 2694 fps | 97.8% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 41,234 psi | 86% | 2671 fps | 95.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 41,104 psi | 86% | 2585 fps | 99.1% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 43,192 psi | 90% | 2631 fps | 99.9% |
| Somchem S321 | <<locked>> | 82% | 42,554 psi | 89% | 2697 fps | 97.9% |
| Somchem S335 | <<locked>> | 86% | 42,859 psi | 90% | 2631 fps | 99.8% |
| Somchem S341 | <<locked>> | 86% | 42,569 psi | 89% | 2687 fps | 96.2% |
| Somchem S355 | <<locked>> | 94% | 42,960 psi | 90% | 2720 fps | 97% |
| Somchem S365ᴾ | <<locked>> | 100% | 36,999 psi | 77% | 2680 fps | 96.6% |
| Vihtavuori N133 | <<locked>> | 84% | 41,060 psi | 86% | 2589 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 40,524 psi | 85% | 2651 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 42,119 psi | 88% | 2661 fps | 99.5% |
| Vihtavuori N150 | <<locked>> | 94% | 41,031 psi | 86% | 2654 fps | 97.9% |
| Vihtavuori N530 | <<locked>> | 84% | 42,221 psi | 88% | 2667 fps | 97.6% |
| Vihtavuori N540 | <<locked>> | 90% | 43,250 psi | 90% | 2697 fps | 99.4% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 42,844 psi | 90% | 2684 fps | 96.8% |
| Winchester 748 | <<locked>> | 84% | 40,959 psi | 86% | 2703 fps | 98.2% |
| Winchester StaBALL Match | <<locked>> | 88% | 43,178 psi | 90% | 2730 fps | 97.2% |
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% | 38,159 psi | 80% | 2556 fps | 99.9% |
| Accurate 2495 | <<locked>> | 80% | 30,777 psi | 64% | 2451 fps | 99.2% |
| Accurate 2520 | <<locked>> | 80% | 36,767 psi | 77% | 2589 fps | 97.9% |
| Accurate 4064 | <<locked>> | 80% | 29,109 psi | 61% | 2421 fps | 96.6% |
| ADI AR 2206H | <<locked>> | 84% | 40,030 psi | 84% | 2651 fps | 95.6% |
| ADI Benchmark 8208 | <<locked>> | 80% | 37,202 psi | 78% | 2566 fps | 96.2% |
| Alliant AR-Comp | <<locked>> | 80% | 35,447 psi | 74% | 2582 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 34,925 psi | 73% | 2562 fps | 95.1% |
| Alliant Reloder-15 | <<locked>> | 88% | 40,437 psi | 84% | 2677 fps | 95.1% |
| Alliant Reloder-17 | <<locked>> | 94% | 39,827 psi | 83% | 2736 fps | 95.7% |
| Bofors RP3 | 28.5 gr | 86% | 34,374 psi | 72% | 2559 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 80% | 39,436 psi | 82% | 2572 fps | 97.4% |
| Hodgdon BL-C2 | <<locked>> | 80% | 35,012 psi | 73% | 2569 fps | 96.2% |
| Hodgdon H4895 | <<locked>> | 82% | 37,594 psi | 79% | 2605 fps | 95.5% |
| Hodgdon LEVERevolution | 28.7 gr | 84% | 35,940 psi | 75% | 2615 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,193 psi | 53% | 1562 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 38,870 psi | 81% | 2615 fps | 95.8% |
| IMR 3031 | <<locked>> | 80% | 33,953 psi | 71% | 2569 fps | 99.2% |
| IMR 4064 | <<locked>> | 88% | 40,596 psi | 85% | 2635 fps | 95.2% |
| IMR 4895 | <<locked>> | 86% | 38,609 psi | 81% | 2654 fps | 95.3% |
| IMR 8208 XBR | <<locked>> | 80% | 37,202 psi | 78% | 2566 fps | 96.2% |
| Lovex D073.6 | <<locked>> | 80% | 33,228 psi | 69% | 2520 fps | 96.8% |
| Lovex S060 | <<locked>> | 82% | 38,508 psi | 80% | 2549 fps | 95.1% |
| Lovex S062 | <<locked>> | 84% | 34,998 psi | 73% | 2530 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 34,490 psi | 72% | 2503 fps | 95.4% |
| Norma 202 | <<locked>> | 80% | 34,548 psi | 72% | 2526 fps | 97.9% |
| Norma 203B | <<locked>> | 88% | 39,726 psi | 83% | 2667 fps | 95.6% |
| Ramshot Big Game | <<locked>> | 88% | 39,595 psi | 83% | 2677 fps | 95.1% |
| Ramshot Wild Boar | <<locked>> | 82% | 38,551 psi | 81% | 2625 fps | 95.1% |
| Ramshot X-Terminator | <<locked>> | 80% | 40,219 psi | 84% | 2605 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,440 psi | 53% | 1604 fps | 100% |
| ReloadSwiss RS 60 | 29.5 gr | 86% | 32,590 psi | 68% | 2566 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 80% | 38,218 psi | 80% | 2572 fps | 98.5% |
| Rottweil R 902 | <<locked>> | 82% | 35,027 psi | 73% | 2507 fps | 95.5% |
| Rottweil R 903 | <<locked>> | 90% | 36,463 psi | 76% | 2598 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 33,228 psi | 69% | 2520 fps | 96.8% |
| Shooters World Precision | <<locked>> | 84% | 34,998 psi | 73% | 2530 fps | 95.6% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 38,551 psi | 81% | 2615 fps | 95.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 36,448 psi | 76% | 2490 fps | 98.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 29,689 psi | 62% | 2349 fps | 97.4% |
| Somchem S321 | <<locked>> | 80% | 39,769 psi | 83% | 2641 fps | 97.3% |
| Somchem S335 | <<locked>> | 80% | 35,679 psi | 75% | 2490 fps | 98.8% |
| Somchem S341 | <<locked>> | 84% | 39,755 psi | 83% | 2631 fps | 95.4% |
| Somchem S355 | <<locked>> | 90% | 37,797 psi | 79% | 2615 fps | 95.5% |
| Somchem S365 | <<locked>> | 98% | 34,925 psi | 73% | 2628 fps | 95.7% |
| Vihtavuori N133 | <<locked>> | 80% | 36,405 psi | 76% | 2497 fps | 99.8% |
| Vihtavuori N135 | <<locked>> | 80% | 31,517 psi | 66% | 2464 fps | 99.3% |
| Vihtavuori N140 | <<locked>> | 80% | 32,489 psi | 68% | 2457 fps | 97.7% |
| Vihtavuori N150 | <<locked>> | 88% | 33,866 psi | 71% | 2503 fps | 95.8% |
| Vihtavuori N530 | <<locked>> | 80% | 37,072 psi | 77% | 2559 fps | 96.2% |
| Vihtavuori N540 | <<locked>> | 80% | 31,386 psi | 66% | 2444 fps | 96.7% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 37,550 psi | 78% | 2575 fps | 95% |
| Winchester 748 | <<locked>> | 80% | 35,665 psi | 75% | 2589 fps | 96.7% |
| Winchester StaBALL Match | <<locked>> | 84% | 37,608 psi | 79% | 2615 fps | 95.6% |
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 54 powders for 6 x 52 R BB2 loaded with the .243 | 90gr | Reichenberg HDB Universal. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,812 fps; across all powders the maximum-charge window runs from 1,749 fps to 2,812 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 54 of the 54 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (330 MPa), the top charges use 71–90 %, leaving at least 10 % headroom. The 90.0 gr projectile in 0.243" calls for a 1:10.0 twist; slower twists will usually not stabilise this weight. Hodgdon TrailBoss, ReloadSwiss RS 14, Somchem S365 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, Hodgdon LEVERevolution, Bofors RP3 rank at the top here: for 6 x 52 R BB2 with the .243 | 90gr | Reichenberg HDB Universal 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.