Load Specifications
Load data in caliber 6 x 52 R BB2 with .243 | 80gr | Nosler Ballistic Tip Varmint bullet and 40 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, IMR 3031 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.
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>> | 86% | 42,786 psi | 89% | 2799 fps | 99.9% |
| Accurate 2460 | <<locked>> | 82% | 41,031 psi | 86% | 2789 fps | 98.2% |
| Accurate 2495 | <<locked>> | 92% | 41,829 psi | 87% | 2841 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 41,481 psi | 87% | 2835 fps | 98% |
| Accurate 4064 | <<locked>> | 94% | 41,582 psi | 87% | 2861 fps | 98.9% |
| ADI Benchmark 8208 | <<locked>> | 86% | 41,524 psi | 87% | 2802 fps | 96.1% |
| Alliant AR-Comp | <<locked>> | 88% | 42,206 psi | 88% | 2874 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 82% | 43,091 psi | 90% | 2822 fps | 100% |
| Hodgdon Benchmark | <<locked>> | 84% | 41,350 psi | 86% | 2753 fps | 96.7% |
| Hodgdon BL-C2 | <<locked>> | 88% | 42,177 psi | 88% | 2867 fps | 97% |
| Hodgdon H322 | <<locked>> | 82% | 41,727 psi | 87% | 2828 fps | 99.2% |
| Hodgdon H335 | <<locked>> | 82% | 42,511 psi | 89% | 2844 fps | 98.7% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 43,178 psi | 90% | 2913 fps | 96.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,663 psi | 70% | 1854 fps | 100% |
| IMR 3031 | <<locked>> | 88% | 40,335 psi | 84% | 2861 fps | 99.5% |
| IMR 8208 XBR | <<locked>> | 86% | 41,524 psi | 87% | 2802 fps | 96.1% |
| Lovex D073.5 | <<locked>> | 82% | 40,741 psi | 85% | 2782 fps | 97% |
| Lovex D073.6 | <<locked>> | 90% | 42,699 psi | 89% | 2871 fps | 98.2% |
| Lovex S062 | <<locked>> | 92% | 41,611 psi | 87% | 2818 fps | 96.3% |
| Norma 201 | <<locked>> | 88% | 41,176 psi | 86% | 2792 fps | 96.1% |
| Norma 202 | <<locked>> | 88% | 40,872 psi | 85% | 2808 fps | 98.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,707 psi | 70% | 1896 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 41,147 psi | 86% | 2795 fps | 97.5% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 41,814 psi | 87% | 2930 fps | 97.5% |
| Rottweil R 901 | <<locked>> | 86% | 42,293 psi | 88% | 2805 fps | 98.4% |
| Rottweil R 902 | <<locked>> | 90% | 41,365 psi | 86% | 2789 fps | 96.2% |
| Shooters World Match Rifle | <<locked>> | 90% | 42,699 psi | 89% | 2871 fps | 98.2% |
| Shooters World Precision | <<locked>> | 92% | 41,611 psi | 87% | 2818 fps | 96.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 43,236 psi | 90% | 2772 fps | 98.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 42,496 psi | 89% | 2766 fps | 99.3% |
| Somchem S321 | <<locked>> | 84% | 41,945 psi | 88% | 2831 fps | 96.6% |
| Somchem S335 | <<locked>> | 88% | 42,569 psi | 89% | 2776 fps | 99.2% |
| Vihtavuori N130 | <<locked>> | 82% | 40,669 psi | 85% | 2720 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 43,018 psi | 90% | 2776 fps | 99.9% |
| Vihtavuori N135 | <<locked>> | 92% | 42,380 psi | 89% | 2841 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 41,118 psi | 86% | 2792 fps | 98.7% |
| Vihtavuori N150 | <<locked>> | 98% | 43,134 psi | 90% | 2838 fps | 97.2% |
| Vihtavuori N530 | <<locked>> | 86% | 41,452 psi | 87% | 2792 fps | 96.2% |
| Vihtavuori N540 | <<locked>> | 92% | 42,583 psi | 89% | 2831 fps | 98.6% |
| Winchester 748 | <<locked>> | 88% | 43,134 psi | 90% | 2897 fps | 97.6% |
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% | 35,375 psi | 74% | 2648 fps | 99.1% |
| Accurate 2460 | <<locked>> | 80% | 38,305 psi | 80% | 2730 fps | 97.5% |
| Accurate 2495 | <<locked>> | 80% | 27,934 psi | 58% | 2516 fps | 97.5% |
| Accurate 2520 | <<locked>> | 80% | 33,634 psi | 70% | 2657 fps | 95.6% |
| Accurate 4064 | 27.3 gr | 84% | 30,168 psi | 63% | 2589 fps | 95.6% |
| ADI Benchmark 8208 | <<locked>> | 84% | 39,218 psi | 82% | 2749 fps | 95.4% |
| Alliant AR-Comp | <<locked>> | 80% | 32,561 psi | 68% | 2667 fps | 99.9% |
| Alliant Reloder-10x | <<locked>> | 80% | 40,190 psi | 84% | 2762 fps | 100% |
| Hodgdon Benchmark | <<locked>> | 80% | 36,564 psi | 76% | 2648 fps | 95.2% |
| Hodgdon BL-C2 | <<locked>> | 84% | 36,782 psi | 77% | 2749 fps | 95.4% |
| Hodgdon H322 | <<locked>> | 80% | 38,856 psi | 81% | 2769 fps | 98.7% |
| Hodgdon H335 | <<locked>> | 80% | 39,682 psi | 83% | 2785 fps | 98.1% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 40,422 psi | 84% | 2854 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,671 psi | 52% | 1654 fps | 100% |
| IMR 3031 | 25.6 gr | 80% | 30,864 psi | 64% | 2631 fps | 97.3% |
| IMR 8208 XBR | <<locked>> | 84% | 39,218 psi | 82% | 2749 fps | 95.4% |
| Lovex D073.5 | <<locked>> | 80% | 38,043 psi | 79% | 2723 fps | 96.2% |
| Lovex D073.6 | <<locked>> | 82% | 32,227 psi | 67% | 2635 fps | 95% |
| Lovex S062 | <<locked>> | 90% | 38,856 psi | 81% | 2756 fps | 95.5% |
| Norma 201 | <<locked>> | 86% | 38,464 psi | 80% | 2736 fps | 95.3% |
| Norma 202 | <<locked>> | 80% | 31,589 psi | 66% | 2592 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,816 psi | 52% | 1696 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 38,783 psi | 81% | 2743 fps | 96.9% |
| ReloadSwiss RS 60 | 32 gr | 92% | 36,651 psi | 77% | 2799 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 80% | 35,230 psi | 74% | 2648 fps | 96.6% |
| Rottweil R 902 | <<locked>> | 88% | 38,653 psi | 81% | 2730 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 82% | 32,227 psi | 67% | 2635 fps | 95% |
| Shooters World Precision | <<locked>> | 90% | 38,856 psi | 81% | 2756 fps | 95.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 33,707 psi | 70% | 2562 fps | 96.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 27,296 psi | 57% | 2411 fps | 95% |
| Somchem S321 | <<locked>> | 80% | 36,666 psi | 77% | 2713 fps | 95% |
| Somchem S335 | <<locked>> | 80% | 33,243 psi | 69% | 2569 fps | 97.1% |
| Vihtavuori N130 | <<locked>> | 80% | 38,319 psi | 80% | 2671 fps | 99.8% |
| Vihtavuori N133 | <<locked>> | 80% | 33,547 psi | 70% | 2579 fps | 98.7% |
| Vihtavuori N135 | <<locked>> | 80% | 28,558 psi | 60% | 2526 fps | 97.5% |
| Vihtavuori N140 | <<locked>> | 80% | 29,979 psi | 63% | 2530 fps | 95.4% |
| Vihtavuori N150 | <<locked>> | 94% | 37,492 psi | 78% | 2723 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 84% | 39,088 psi | 82% | 2743 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 82% | 30,661 psi | 64% | 2559 fps | 95% |
| Winchester 748 | <<locked>> | 82% | 35,172 psi | 73% | 2717 fps | 95.1% |
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 40 powders for 6 x 52 R BB2 loaded with the .243 | 80gr | Nosler Ballistic Tip Varmint. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,930 fps; across all powders the maximum-charge window runs from 1,854 fps to 2,930 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 40 of the 40 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (330 MPa), the top charges use 70–90 %, leaving at least 10 % headroom. The 80.0 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 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, IMR 3031, Accurate 4064 rank at the top here: for 6 x 52 R BB2 with the .243 | 80gr | Nosler Ballistic Tip 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.