Load Specifications
Load data in caliber 6 x 52 R BB2 with .2425 | 90gr | Prvi Partizan SP bullet and 56 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 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>> | 82% | 42,119 psi | 88% | 2641 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 41,843 psi | 87% | 2690 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 40,872 psi | 85% | 2684 fps | 98.9% |
| Accurate 4064 | <<locked>> | 90% | 42,090 psi | 88% | 2726 fps | 99.7% |
| ADI AR 2206H | <<locked>> | 84% | 41,336 psi | 86% | 2690 fps | 96.3% |
| ADI AR 2208 | <<locked>> | 90% | 42,206 psi | 88% | 2687 fps | 95.7% |
| ADI Benchmark 8208 | <<locked>> | 82% | 40,785 psi | 85% | 2654 fps | 97.4% |
| Alliant AR-Comp | <<locked>> | 84% | 42,467 psi | 89% | 2720 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 41,162 psi | 86% | 2707 fps | 97.3% |
| Alliant Reloder-15 | <<locked>> | 88% | 41,713 psi | 87% | 2717 fps | 95.8% |
| Alliant Reloder-17 | <<locked>> | 94% | 41,075 psi | 86% | 2779 fps | 96.5% |
| Bofors RP3 | <<locked>> | 90% | 40,930 psi | 86% | 2713 fps | 97.3% |
| Hodgdon Benchmark | <<locked>> | 82% | 43,062 psi | 90% | 2657 fps | 98.4% |
| Hodgdon BL-C2 | <<locked>> | 84% | 41,437 psi | 87% | 2717 fps | 98.2% |
| Hodgdon CFE223 | <<locked>> | 82% | 42,656 psi | 89% | 2792 fps | 96% |
| Hodgdon H4895 | <<locked>> | 84% | 41,626 psi | 87% | 2703 fps | 97% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 39,784 psi | 83% | 2687 fps | 96.1% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 42,685 psi | 89% | 2776 fps | 97.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,345 psi | 72% | 1768 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 42,888 psi | 90% | 2710 fps | 97.2% |
| IMR 3031 | <<locked>> | 86% | 43,120 psi | 90% | 2766 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 41,887 psi | 88% | 2674 fps | 95.9% |
| IMR 4895 | <<locked>> | 88% | 42,685 psi | 89% | 2753 fps | 96.8% |
| IMR 8208 XBR | <<locked>> | 82% | 40,785 psi | 85% | 2654 fps | 97.4% |
| Lovex D073.6 | <<locked>> | 86% | 42,511 psi | 89% | 2726 fps | 99.2% |
| Lovex S060 | <<locked>> | 84% | 42,061 psi | 88% | 2635 fps | 96.5% |
| Lovex S062 | <<locked>> | 88% | 41,089 psi | 86% | 2674 fps | 97.6% |
| Norma 201 | <<locked>> | 86% | 42,931 psi | 90% | 2697 fps | 98% |
| Norma 202 | <<locked>> | 86% | 43,178 psi | 90% | 2717 fps | 99.6% |
| Norma 203B | <<locked>> | 88% | 40,988 psi | 86% | 2707 fps | 96.3% |
| Ramshot Big Game | <<locked>> | 88% | 40,973 psi | 86% | 2720 fps | 95.9% |
| Ramshot Wild Boar | <<locked>> | 84% | 42,453 psi | 89% | 2720 fps | 96.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,490 psi | 72% | 1808 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 41,089 psi | 86% | 2795 fps | 98.8% |
| Rottweil R 901 | <<locked>> | 82% | 41,640 psi | 87% | 2654 fps | 99.2% |
| Rottweil R 902 | <<locked>> | 86% | 40,770 psi | 85% | 2644 fps | 97.5% |
| Rottweil R 903 | <<locked>> | 94% | 43,308 psi | 90% | 2753 fps | 97.6% |
| Shooters World Match Rifle | <<locked>> | 86% | 42,511 psi | 89% | 2726 fps | 99.2% |
| Shooters World Precision | <<locked>> | 88% | 41,089 psi | 86% | 2674 fps | 97.6% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 42,409 psi | 89% | 2756 fps | 96.4% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 42,395 psi | 89% | 2707 fps | 96.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 42,554 psi | 89% | 2625 fps | 99.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 41,959 psi | 88% | 2621 fps | 99.8% |
| Somchem S335 | <<locked>> | 84% | 41,800 psi | 87% | 2625 fps | 99.8% |
| Somchem S341 | <<locked>> | 84% | 41,292 psi | 86% | 2674 fps | 96.1% |
| Somchem S355 | <<locked>> | 92% | 41,727 psi | 87% | 2707 fps | 97% |
| Somchem S365ᴾ | <<locked>> | 100% | 38,609 psi | 81% | 2733 fps | 97.4% |
| Vihtavuori N133 | <<locked>> | 84% | 42,540 psi | 89% | 2628 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 42,105 psi | 88% | 2690 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 41,002 psi | 86% | 2651 fps | 99.5% |
| Vihtavuori N150 | <<locked>> | 94% | 42,598 psi | 89% | 2694 fps | 98.4% |
| Vihtavuori N530 | <<locked>> | 82% | 40,727 psi | 85% | 2648 fps | 97.5% |
| Vihtavuori N540 | <<locked>> | 88% | 42,047 psi | 88% | 2687 fps | 99.4% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 41,423 psi | 87% | 2674 fps | 96.7% |
| Winchester 748 | <<locked>> | 84% | 42,293 psi | 88% | 2743 fps | 98.6% |
| Winchester StaBALL Match | <<locked>> | 86% | 41,858 psi | 87% | 2717 fps | 97.1% |
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% | 39,755 psi | 83% | 2598 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 32,213 psi | 67% | 2493 fps | 99.6% |
| Accurate 2520 | <<locked>> | 80% | 38,203 psi | 80% | 2631 fps | 98.4% |
| Accurate 4064 | 26.5 gr | 80% | 30,472 psi | 64% | 2467 fps | 97.3% |
| ADI AR 2206H | <<locked>> | 82% | 38,725 psi | 81% | 2635 fps | 95.5% |
| ADI AR 2208 | <<locked>> | 88% | 39,900 psi | 83% | 2638 fps | 95% |
| ADI Benchmark 8208 | <<locked>> | 80% | 38,189 psi | 80% | 2598 fps | 96.7% |
| Alliant AR-Comp | <<locked>> | 80% | 37,043 psi | 77% | 2621 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 36,274 psi | 76% | 2602 fps | 95.8% |
| Alliant Reloder-15 | <<locked>> | 86% | 39,407 psi | 82% | 2667 fps | 95.1% |
| Alliant Reloder-17 | 32.6 gr | 92% | 38,493 psi | 80% | 2720 fps | 95.6% |
| Bofors RP3 | <<locked>> | 86% | 35,650 psi | 74% | 2602 fps | 95.7% |
| Hodgdon Benchmark | <<locked>> | 80% | 40,379 psi | 84% | 2605 fps | 97.9% |
| Hodgdon BL-C2 | <<locked>> | 80% | 36,230 psi | 76% | 2605 fps | 96.8% |
| Hodgdon CFE223 | <<locked>> | 80% | 39,929 psi | 83% | 2733 fps | 95.1% |
| Hodgdon H4895 | <<locked>> | 80% | 36,419 psi | 76% | 2589 fps | 95.4% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 37,202 psi | 78% | 2628 fps | 95.2% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 35,041 psi | 73% | 2605 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,382 psi | 53% | 1578 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 37,536 psi | 78% | 2598 fps | 95.7% |
| IMR 3031 | <<locked>> | 80% | 35,114 psi | 73% | 2602 fps | 99.5% |
| IMR 4064 | <<locked>> | 86% | 39,146 psi | 82% | 2618 fps | 95% |
| IMR 4895 | <<locked>> | 84% | 37,695 psi | 79% | 2644 fps | 95.3% |
| IMR 8208 XBR | <<locked>> | 80% | 38,189 psi | 80% | 2598 fps | 96.7% |
| Lovex D073.6 | <<locked>> | 80% | 34,621 psi | 72% | 2562 fps | 97.5% |
| Lovex S060 | <<locked>> | 80% | 37,275 psi | 78% | 2533 fps | 95% |
| Lovex S062 | <<locked>> | 82% | 34,272 psi | 72% | 2523 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 35,810 psi | 75% | 2546 fps | 96.1% |
| Norma 202 | <<locked>> | 80% | 35,607 psi | 74% | 2559 fps | 98.3% |
| Norma 203B | <<locked>> | 86% | 38,696 psi | 81% | 2657 fps | 95.5% |
| Ramshot Big Game | <<locked>> | 86% | 38,392 psi | 80% | 2664 fps | 95% |
| Ramshot Wild Boar | <<locked>> | 82% | 39,755 psi | 83% | 2664 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,628 psi | 54% | 1617 fps | 100% |
| ReloadSwiss RS 60 | 29.8 gr | 84% | 31,720 psi | 66% | 2552 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 39,320 psi | 82% | 2605 fps | 98.9% |
| Rottweil R 902 | <<locked>> | 80% | 34,026 psi | 71% | 2493 fps | 95.4% |
| Rottweil R 903 | <<locked>> | 88% | 35,549 psi | 74% | 2589 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 34,621 psi | 72% | 2562 fps | 97.5% |
| Shooters World Precision | <<locked>> | 82% | 34,272 psi | 72% | 2523 fps | 95.6% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 39,697 psi | 83% | 2700 fps | 95.6% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 39,769 psi | 83% | 2654 fps | 95.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 37,492 psi | 78% | 2523 fps | 98.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 30,647 psi | 64% | 2382 fps | 97.9% |
| Somchem S335 | <<locked>> | 80% | 36,999 psi | 77% | 2526 fps | 99.2% |
| Somchem S341 | <<locked>> | 82% | 38,290 psi | 80% | 2612 fps | 95.2% |
| Somchem S355 | <<locked>> | 88% | 36,840 psi | 77% | 2602 fps | 95.5% |
| Somchem S365 | <<locked>> | 96% | 34,142 psi | 71% | 2621 fps | 95.8% |
| Vihtavuori N133 | <<locked>> | 80% | 37,521 psi | 78% | 2533 fps | 99.9% |
| Vihtavuori N135 | <<locked>> | 80% | 32,663 psi | 68% | 2497 fps | 99.6% |
| Vihtavuori N140 | <<locked>> | 80% | 33,489 psi | 70% | 2493 fps | 98.1% |
| Vihtavuori N150 | <<locked>> | 86% | 33,054 psi | 69% | 2493 fps | 95.7% |
| Vihtavuori N530 | <<locked>> | 80% | 38,058 psi | 80% | 2592 fps | 96.8% |
| Vihtavuori N540 | <<locked>> | 80% | 32,285 psi | 67% | 2474 fps | 97.3% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 36,506 psi | 76% | 2566 fps | 95% |
| Winchester 748 | <<locked>> | 80% | 36,956 psi | 77% | 2631 fps | 97.4% |
| Winchester StaBALL Match | <<locked>> | 82% | 36,332 psi | 76% | 2598 fps | 95.4% |
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 56 powders for 6 x 52 R BB2 loaded with the .2425 | 90gr | Prvi Partizan SP. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,795 fps; across all powders the maximum-charge window runs from 1,768 fps to 2,795 fps. Hodgdon Hybrid 100V gives the best case fill at 100 %, and 56 of the 56 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (330 MPa), the top charges use 72–90 %, leaving at least 10 % headroom. The 90.0 gr projectile in 0.2425" calls for a 1:11.5 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, Accurate 4064 rank at the top here: for 6 x 52 R BB2 with the .2425 | 90gr | Prvi Partizan 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.