Load Specifications
Load data in caliber 6 x 52 R BB2 with .243 | 88gr | Berger Varmint 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, Accurate 4064 and Accurate 2495.
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% | 41,930 psi | 88% | 2654 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 42,960 psi | 90% | 2700 fps | 99.1% |
| Accurate 2495 | <<locked>> | 90% | 41,220 psi | 86% | 2697 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 40,828 psi | 85% | 2697 fps | 98.5% |
| Accurate 4064 | <<locked>> | 92% | 41,510 psi | 87% | 2730 fps | 99.4% |
| ADI Benchmark 8208 | <<locked>> | 84% | 40,857 psi | 85% | 2664 fps | 96.9% |
| Alliant AR-Comp | <<locked>> | 86% | 42,148 psi | 88% | 2733 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 43,308 psi | 90% | 2759 fps | 97.2% |
| Bofors RP3 | <<locked>> | 94% | 43,236 psi | 90% | 2769 fps | 97.3% |
| Hodgdon Benchmark | <<locked>> | 84% | 43,250 psi | 90% | 2667 fps | 98% |
| Hodgdon BL-C2 | <<locked>> | 86% | 41,568 psi | 87% | 2730 fps | 97.7% |
| Hodgdon H4895 | <<locked>> | 86% | 41,655 psi | 87% | 2713 fps | 96.4% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 42,177 psi | 88% | 2772 fps | 97% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,011 psi | 71% | 1762 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 42,743 psi | 89% | 2717 fps | 96.5% |
| IMR 3031 | <<locked>> | 88% | 42,453 psi | 89% | 2769 fps | 100% |
| IMR 4895 | <<locked>> | 90% | 42,830 psi | 89% | 2762 fps | 96.2% |
| IMR 8208 XBR | <<locked>> | 84% | 40,857 psi | 85% | 2664 fps | 96.9% |
| Lovex D073.5 | <<locked>> | 82% | 42,815 psi | 89% | 2700 fps | 98.2% |
| Lovex D073.6 | <<locked>> | 88% | 42,148 psi | 88% | 2733 fps | 98.8% |
| Lovex S060 | <<locked>> | 86% | 42,322 psi | 88% | 2644 fps | 95.9% |
| Lovex S062 | <<locked>> | 90% | 41,162 psi | 86% | 2684 fps | 97.1% |
| Norma 201 | <<locked>> | 88% | 42,989 psi | 90% | 2707 fps | 97.5% |
| Norma 202 | <<locked>> | 88% | 42,815 psi | 89% | 2720 fps | 99.3% |
| Ramshot Wild Boar | <<locked>> | 86% | 42,743 psi | 89% | 2733 fps | 95.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,142 psi | 71% | 1804 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 43,265 psi | 90% | 2710 fps | 98.6% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 40,901 psi | 85% | 2792 fps | 98.2% |
| Rottweil R 901 | <<locked>> | 84% | 41,829 psi | 87% | 2667 fps | 98.9% |
| Rottweil R 902 | <<locked>> | 90% | 43,236 psi | 90% | 2703 fps | 97.5% |
| Rottweil R 903 | <<locked>> | 96% | 43,120 psi | 90% | 2759 fps | 97% |
| Shooters World Match Rifle | <<locked>> | 88% | 42,148 psi | 88% | 2733 fps | 98.8% |
| Shooters World Precision | <<locked>> | 90% | 41,162 psi | 86% | 2684 fps | 97.1% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 42,279 psi | 88% | 2713 fps | 95.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 42,685 psi | 89% | 2635 fps | 99.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 41,829 psi | 87% | 2628 fps | 99.6% |
| Somchem S321 | <<locked>> | 82% | 41,133 psi | 86% | 2690 fps | 97.3% |
| Somchem S335 | <<locked>> | 86% | 41,872 psi | 87% | 2635 fps | 99.5% |
| Somchem S355 | <<locked>> | 94% | 41,466 psi | 87% | 2710 fps | 96.3% |
| Vihtavuori N130 | <<locked>> | 82% | 42,467 psi | 89% | 2621 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 42,554 psi | 89% | 2638 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 41,916 psi | 88% | 2700 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 43,163 psi | 90% | 2703 fps | 99.5% |
| Vihtavuori N150 | <<locked>> | 96% | 42,569 psi | 89% | 2707 fps | 97.9% |
| Vihtavuori N530 | <<locked>> | 84% | 40,828 psi | 85% | 2657 fps | 96.9% |
| Vihtavuori N540 | <<locked>> | 90% | 41,887 psi | 88% | 2694 fps | 99% |
| Winchester 748 | <<locked>> | 86% | 42,395 psi | 89% | 2756 fps | 98.2% |
| Winchester StaBALL Match | <<locked>> | 88% | 41,713 psi | 87% | 2720 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% | 37,130 psi | 78% | 2559 fps | 99.8% |
| Accurate 2460 | <<locked>> | 80% | 40,089 psi | 84% | 2644 fps | 98.7% |
| Accurate 2495 | 25.3 gr | 80% | 29,718 psi | 62% | 2448 fps | 98.8% |
| Accurate 2520 | <<locked>> | 80% | 35,346 psi | 74% | 2579 fps | 97.2% |
| Accurate 4064 | 25.3 gr | 80% | 28,108 psi | 59% | 2418 fps | 95.7% |
| ADI Benchmark 8208 | <<locked>> | 80% | 35,926 psi | 75% | 2556 fps | 95.3% |
| Alliant AR-Comp | <<locked>> | 80% | 34,330 psi | 72% | 2582 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 35,752 psi | 75% | 2602 fps | 95% |
| Bofors RP3 | <<locked>> | 90% | 37,811 psi | 79% | 2661 fps | 95.8% |
| Hodgdon Benchmark | <<locked>> | 80% | 38,159 psi | 80% | 2566 fps | 96.7% |
| Hodgdon BL-C2 | <<locked>> | 80% | 33,707 psi | 70% | 2556 fps | 95.3% |
| Hodgdon H4895 | <<locked>> | 84% | 38,899 psi | 81% | 2654 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 37,188 psi | 78% | 2661 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,106 psi | 52% | 1575 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 40,277 psi | 84% | 2664 fps | 95.8% |
| IMR 3031 | <<locked>> | 80% | 32,895 psi | 69% | 2566 fps | 98.7% |
| IMR 4895 | <<locked>> | 88% | 39,929 psi | 83% | 2703 fps | 95.3% |
| IMR 8208 XBR | <<locked>> | 80% | 35,926 psi | 75% | 2556 fps | 95.3% |
| Lovex D073.5 | <<locked>> | 80% | 39,900 psi | 83% | 2641 fps | 97.6% |
| Lovex D073.6 | <<locked>> | 80% | 31,879 psi | 67% | 2507 fps | 96% |
| Lovex S060 | <<locked>> | 84% | 39,929 psi | 83% | 2595 fps | 95.2% |
| Lovex S062 | <<locked>> | 86% | 36,172 psi | 76% | 2579 fps | 95.6% |
| Norma 201 | <<locked>> | 82% | 35,636 psi | 74% | 2549 fps | 95.3% |
| Norma 202 | <<locked>> | 80% | 33,257 psi | 69% | 2516 fps | 97.2% |
| Ramshot Wild Boar | <<locked>> | 84% | 39,914 psi | 83% | 2674 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,338 psi | 53% | 1614 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 40,364 psi | 84% | 2654 fps | 98.1% |
| ReloadSwiss RS 60 | 29.8 gr | 88% | 33,750 psi | 71% | 2612 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 80% | 36,840 psi | 77% | 2562 fps | 97.9% |
| Rottweil R 902 | <<locked>> | 84% | 35,839 psi | 75% | 2546 fps | 95.4% |
| Rottweil R 903 | <<locked>> | 92% | 37,652 psi | 79% | 2648 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 31,879 psi | 67% | 2507 fps | 96% |
| Shooters World Precision | <<locked>> | 86% | 36,172 psi | 76% | 2579 fps | 95.6% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 39,885 psi | 83% | 2664 fps | 95.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 35,143 psi | 73% | 2480 fps | 97.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 28,572 psi | 60% | 2339 fps | 96.6% |
| Somchem S321 | <<locked>> | 80% | 38,421 psi | 80% | 2631 fps | 96.5% |
| Somchem S335 | <<locked>> | 80% | 34,809 psi | 73% | 2490 fps | 98.4% |
| Somchem S355 | <<locked>> | 92% | 39,088 psi | 82% | 2664 fps | 95.6% |
| Vihtavuori N130 | <<locked>> | 80% | 39,958 psi | 83% | 2575 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 35,085 psi | 73% | 2493 fps | 99.5% |
| Vihtavuori N135 | <<locked>> | 80% | 30,168 psi | 63% | 2451 fps | 98.8% |
| Vihtavuori N140 | <<locked>> | 80% | 31,241 psi | 65% | 2448 fps | 96.9% |
| Vihtavuori N150 | <<locked>> | 90% | 34,708 psi | 73% | 2543 fps | 95.7% |
| Vihtavuori N530 | <<locked>> | 80% | 35,766 psi | 75% | 2549 fps | 95.4% |
| Vihtavuori N540 | <<locked>> | 80% | 30,226 psi | 63% | 2434 fps | 95.9% |
| Winchester 748 | <<locked>> | 80% | 34,374 psi | 72% | 2579 fps | 95.9% |
| Winchester StaBALL Match | <<locked>> | 86% | 38,943 psi | 81% | 2664 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 | 88gr | Berger Varmint. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,792 fps; across all powders the maximum-charge window runs from 1,762 fps to 2,792 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 88.0 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, Accurate 4064, Accurate 2495 rank at the top here: for 6 x 52 R BB2 with the .243 | 88gr | Berger Varmint 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.