Load Specifications
Load data in caliber 6 x 52 R BB2 with .243 | 87gr | Berger VLD Hunting bullet and 48 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Bofors RP3 and Accurate 4064.
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>> | 84% | 42,337 psi | 88% | 2680 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 43,236 psi | 90% | 2723 fps | 99.1% |
| Accurate 2495 | <<locked>> | 90% | 41,466 psi | 87% | 2720 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 41,031 psi | 86% | 2720 fps | 98.5% |
| Accurate 4064 | <<locked>> | 92% | 41,684 psi | 87% | 2753 fps | 99.4% |
| ADI Benchmark 8208 | <<locked>> | 84% | 41,104 psi | 86% | 2687 fps | 96.9% |
| Alliant AR-Comp | <<locked>> | 86% | 41,974 psi | 88% | 2749 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 40,973 psi | 86% | 2733 fps | 96.6% |
| Bofors RP3 | <<locked>> | 92% | 40,350 psi | 84% | 2733 fps | 96.6% |
| Hodgdon Benchmark | <<locked>> | 82% | 40,741 psi | 85% | 2638 fps | 97.4% |
| Hodgdon BL-C2 | <<locked>> | 86% | 41,756 psi | 87% | 2753 fps | 97.7% |
| Hodgdon H4895 | <<locked>> | 86% | 41,916 psi | 88% | 2740 fps | 96.4% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 42,757 psi | 89% | 2802 fps | 97.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,794 psi | 71% | 1775 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 42,960 psi | 90% | 2740 fps | 96.6% |
| IMR 3031 | <<locked>> | 88% | 42,714 psi | 89% | 2795 fps | 100% |
| IMR 4895 | <<locked>> | 90% | 42,989 psi | 90% | 2785 fps | 96.2% |
| IMR 8208 XBR | <<locked>> | 84% | 41,104 psi | 86% | 2687 fps | 96.9% |
| Lovex D073.5 | <<locked>> | 82% | 43,033 psi | 90% | 2723 fps | 98.3% |
| Lovex D073.6 | <<locked>> | 88% | 42,351 psi | 88% | 2756 fps | 98.8% |
| Lovex S060 | <<locked>> | 86% | 42,554 psi | 89% | 2671 fps | 95.9% |
| Lovex S062 | <<locked>> | 90% | 41,379 psi | 86% | 2707 fps | 97.1% |
| Norma 201 | <<locked>> | 88% | 43,265 psi | 90% | 2733 fps | 97.5% |
| Norma 202 | <<locked>> | 88% | 43,076 psi | 90% | 2746 fps | 99.3% |
| Ramshot Wild Boar | <<locked>> | 86% | 42,888 psi | 90% | 2756 fps | 96% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,924 psi | 71% | 1814 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 41,336 psi | 86% | 2825 fps | 98.3% |
| Rottweil R 901 | <<locked>> | 84% | 41,829 psi | 87% | 2687 fps | 98.9% |
| Rottweil R 902 | <<locked>> | 88% | 41,046 psi | 86% | 2677 fps | 96.9% |
| Rottweil R 903 | <<locked>> | 96% | 43,265 psi | 90% | 2779 fps | 97% |
| Shooters World Match Rifle | <<locked>> | 88% | 42,351 psi | 88% | 2756 fps | 98.8% |
| Shooters World Precision | <<locked>> | 90% | 41,379 psi | 86% | 2707 fps | 97.1% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 42,888 psi | 90% | 2743 fps | 96% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 42,598 psi | 89% | 2654 fps | 99.1% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 42,076 psi | 88% | 2654 fps | 99.7% |
| Somchem S321 | <<locked>> | 82% | 41,336 psi | 86% | 2713 fps | 97.3% |
| Somchem S335 | <<locked>> | 86% | 41,713 psi | 87% | 2651 fps | 99.5% |
| Somchem S355 | <<locked>> | 94% | 41,655 psi | 87% | 2733 fps | 96.3% |
| Vihtavuori N130 | <<locked>> | 82% | 42,844 psi | 90% | 2648 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 42,482 psi | 89% | 2657 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 42,235 psi | 88% | 2726 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 40,901 psi | 85% | 2680 fps | 99.2% |
| Vihtavuori N150 | <<locked>> | 96% | 42,699 psi | 89% | 2726 fps | 97.9% |
| Vihtavuori N530 | <<locked>> | 84% | 41,104 psi | 86% | 2684 fps | 97% |
| Vihtavuori N540 | <<locked>> | 90% | 42,061 psi | 88% | 2717 fps | 99.1% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 41,669 psi | 87% | 2697 fps | 95.9% |
| Winchester 748 | <<locked>> | 86% | 42,583 psi | 89% | 2779 fps | 98.2% |
| Winchester StaBALL Match | <<locked>> | 88% | 41,872 psi | 87% | 2743 fps | 96.4% |
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% | 37,478 psi | 78% | 2585 fps | 99.8% |
| Accurate 2460 | <<locked>> | 80% | 40,379 psi | 84% | 2671 fps | 98.7% |
| Accurate 2495 | <<locked>> | 80% | 29,704 psi | 62% | 2464 fps | 98.7% |
| Accurate 2520 | <<locked>> | 80% | 35,650 psi | 74% | 2605 fps | 97.3% |
| Accurate 4064 | 25.6 gr | 80% | 28,137 psi | 59% | 2434 fps | 95.7% |
| ADI Benchmark 8208 | <<locked>> | 80% | 36,201 psi | 76% | 2582 fps | 95.4% |
| Alliant AR-Comp | <<locked>> | 80% | 34,316 psi | 72% | 2602 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 35,955 psi | 75% | 2625 fps | 95% |
| Bofors RP3 | 29.8 gr | 90% | 37,985 psi | 79% | 2680 fps | 95.8% |
| Hodgdon Benchmark | <<locked>> | 80% | 38,464 psi | 80% | 2592 fps | 96.8% |
| Hodgdon BL-C2 | <<locked>> | 80% | 33,910 psi | 71% | 2582 fps | 95.4% |
| Hodgdon H4895 | <<locked>> | 84% | 39,146 psi | 82% | 2680 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 37,362 psi | 78% | 2687 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,034 psi | 52% | 1588 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 37,811 psi | 79% | 2631 fps | 95% |
| IMR 3031 | <<locked>> | 80% | 32,880 psi | 69% | 2582 fps | 98.7% |
| IMR 4895 | <<locked>> | 88% | 40,132 psi | 84% | 2726 fps | 95.3% |
| IMR 8208 XBR | <<locked>> | 80% | 36,201 psi | 76% | 2582 fps | 95.4% |
| Lovex D073.5 | <<locked>> | 80% | 40,161 psi | 84% | 2667 fps | 97.6% |
| Lovex D073.6 | <<locked>> | 80% | 32,140 psi | 67% | 2533 fps | 96% |
| Lovex S060 | <<locked>> | 84% | 40,190 psi | 84% | 2621 fps | 95.2% |
| Lovex S062 | <<locked>> | 86% | 36,419 psi | 76% | 2602 fps | 95.6% |
| Norma 201 | <<locked>> | 82% | 35,940 psi | 75% | 2575 fps | 95.4% |
| Norma 202 | <<locked>> | 80% | 33,576 psi | 70% | 2543 fps | 97.3% |
| Ramshot Wild Boar | <<locked>> | 84% | 40,103 psi | 84% | 2697 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,251 psi | 53% | 1627 fps | 100% |
| ReloadSwiss RS 60 | 30.2 gr | 88% | 33,881 psi | 71% | 2635 fps | 95.5% |
| Rottweil R 901 | <<locked>> | 80% | 37,217 psi | 78% | 2589 fps | 98% |
| Rottweil R 902 | <<locked>> | 84% | 36,172 psi | 76% | 2572 fps | 95.5% |
| Rottweil R 903 | <<locked>> | 92% | 37,855 psi | 79% | 2671 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 32,140 psi | 67% | 2533 fps | 96% |
| Shooters World Precision | <<locked>> | 86% | 36,419 psi | 76% | 2602 fps | 95.6% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 40,118 psi | 84% | 2687 fps | 95.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 35,505 psi | 74% | 2507 fps | 97.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 28,892 psi | 60% | 2362 fps | 96.7% |
| Somchem S321 | <<locked>> | 80% | 38,624 psi | 81% | 2657 fps | 96.6% |
| Somchem S335 | <<locked>> | 80% | 34,751 psi | 73% | 2507 fps | 98.3% |
| Somchem S355 | <<locked>> | 92% | 39,247 psi | 82% | 2684 fps | 95.6% |
| Vihtavuori N130 | <<locked>> | 80% | 40,379 psi | 84% | 2605 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 35,476 psi | 74% | 2520 fps | 99.5% |
| Vihtavuori N135 | <<locked>> | 80% | 30,516 psi | 64% | 2477 fps | 98.8% |
| Vihtavuori N140 | <<locked>> | 80% | 31,531 psi | 66% | 2474 fps | 97% |
| Vihtavuori N150 | <<locked>> | 90% | 34,911 psi | 73% | 2566 fps | 95.7% |
| Vihtavuori N530 | <<locked>> | 80% | 36,056 psi | 75% | 2575 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 80% | 30,501 psi | 64% | 2457 fps | 96% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 39,015 psi | 82% | 2641 fps | 95% |
| Winchester 748 | <<locked>> | 80% | 34,606 psi | 72% | 2602 fps | 95.9% |
| Winchester StaBALL Match | <<locked>> | 86% | 39,102 psi | 82% | 2687 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 48 powders for 6 x 52 R BB2 loaded with the .243 | 87gr | Berger VLD Hunting. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,825 fps; across all powders the maximum-charge window runs from 1,775 fps to 2,825 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 48 of the 48 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 87.0 gr projectile in 0.243" calls for a 1:9.5 twist; slower twists will usually not stabilise this weight. 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, Bofors RP3, Accurate 4064 rank at the top here: for 6 x 52 R BB2 with the .243 | 87gr | Berger VLD Hunting 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.