Load Specifications
Load data in caliber 6 x 52 R BB2 with .243 | 91gr | Peregrine VLR-4 bullet and 55 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 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>> | 86% | 42,424 psi | 89% | 2612 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 40,509 psi | 85% | 2605 fps | 98.8% |
| Accurate 2495 | <<locked>> | 92% | 41,031 psi | 86% | 2648 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 41,162 psi | 86% | 2654 fps | 98.6% |
| Accurate 4064 | <<locked>> | 94% | 41,031 psi | 86% | 2674 fps | 99.4% |
| ADI AR 2206H | <<locked>> | 88% | 41,843 psi | 87% | 2657 fps | 95.8% |
| ADI Benchmark 8208 | <<locked>> | 86% | 41,655 psi | 87% | 2628 fps | 97.1% |
| Alliant AR-Comp | <<locked>> | 88% | 42,424 psi | 89% | 2687 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 41,568 psi | 87% | 2707 fps | 96.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 41,350 psi | 86% | 2674 fps | 96.8% |
| Alliant Reloder-10x | <<locked>> | 82% | 42,757 psi | 89% | 2628 fps | 100% |
| Bofors RP3 | <<locked>> | 94% | 40,727 psi | 85% | 2674 fps | 96.8% |
| Hodgdon Benchmark | <<locked>> | 84% | 41,568 psi | 87% | 2582 fps | 97.6% |
| Hodgdon BL-C2 | <<locked>> | 88% | 42,221 psi | 88% | 2694 fps | 97.9% |
| Hodgdon H322 | <<locked>> | 82% | 41,582 psi | 87% | 2644 fps | 99.6% |
| Hodgdon H335 | <<locked>> | 82% | 42,438 psi | 89% | 2664 fps | 99.2% |
| Hodgdon H4895 | <<locked>> | 88% | 42,076 psi | 88% | 2671 fps | 96.5% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 43,105 psi | 90% | 2740 fps | 97.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,620 psi | 70% | 1709 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 40,814 psi | 85% | 2625 fps | 96.1% |
| IMR 3031 | <<locked>> | 90% | 43,279 psi | 90% | 2733 fps | 100% |
| IMR 4895 | <<locked>> | 92% | 42,989 psi | 90% | 2717 fps | 96.3% |
| IMR 8208 XBR | <<locked>> | 86% | 41,655 psi | 87% | 2628 fps | 97.1% |
| Lovex D073.5 | <<locked>> | 84% | 43,105 psi | 90% | 2654 fps | 98.3% |
| Lovex D073.6 | <<locked>> | 90% | 42,598 psi | 89% | 2694 fps | 98.9% |
| Lovex S060 | <<locked>> | 88% | 43,294 psi | 90% | 2612 fps | 96.2% |
| Lovex S062 | <<locked>> | 92% | 41,524 psi | 87% | 2644 fps | 97.3% |
| Norma 201 | <<locked>> | 88% | 40,640 psi | 85% | 2612 fps | 97% |
| Norma 202 | <<locked>> | 88% | 41,046 psi | 86% | 2638 fps | 99.1% |
| Ramshot Wild Boar | <<locked>> | 88% | 43,134 psi | 90% | 2690 fps | 96.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,692 psi | 70% | 1752 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 41,060 psi | 86% | 2618 fps | 98.3% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 41,669 psi | 87% | 2759 fps | 98.4% |
| Rottweil R 901 | <<locked>> | 86% | 42,018 psi | 88% | 2625 fps | 99% |
| Rottweil R 902 | <<locked>> | 90% | 40,930 psi | 86% | 2608 fps | 97% |
| Rottweil R 903 | <<locked>> | 98% | 42,975 psi | 90% | 2707 fps | 97% |
| Shooters World Match Rifle | <<locked>> | 90% | 42,598 psi | 89% | 2694 fps | 98.9% |
| Shooters World Precision | <<locked>> | 92% | 41,524 psi | 87% | 2644 fps | 97.3% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 42,714 psi | 89% | 2717 fps | 95.8% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 43,062 psi | 90% | 2677 fps | 96.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 43,091 psi | 90% | 2592 fps | 99.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 42,554 psi | 89% | 2592 fps | 99.7% |
| Somchem S321 | <<locked>> | 84% | 41,597 psi | 87% | 2651 fps | 97.5% |
| Somchem S335 | <<locked>> | 88% | 42,177 psi | 88% | 2592 fps | 99.6% |
| Somchem S355 | <<locked>> | 96% | 41,655 psi | 87% | 2667 fps | 96.4% |
| Vihtavuori N130 | <<locked>> | 82% | 40,770 psi | 85% | 2543 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 42,975 psi | 90% | 2595 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 42,206 psi | 88% | 2657 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 41,133 psi | 86% | 2615 fps | 99.3% |
| Vihtavuori N150 | <<locked>> | 98% | 42,685 psi | 89% | 2657 fps | 98% |
| Vihtavuori N530 | <<locked>> | 86% | 41,742 psi | 87% | 2628 fps | 97.2% |
| Vihtavuori N540 | <<locked>> | 92% | 42,192 psi | 88% | 2651 fps | 99.1% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 42,148 psi | 88% | 2635 fps | 96.1% |
| Winchester 748 | <<locked>> | 88% | 43,105 psi | 90% | 2717 fps | 98.4% |
| Winchester StaBALL Match | <<locked>> | 90% | 42,148 psi | 88% | 2680 fps | 96.6% |
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% | 35,172 psi | 73% | 2474 fps | 99.6% |
| Accurate 2460 | <<locked>> | 80% | 37,956 psi | 79% | 2552 fps | 98.3% |
| Accurate 2495 | <<locked>> | 80% | 27,093 psi | 57% | 2343 fps | 98.1% |
| Accurate 2520 | <<locked>> | 80% | 33,359 psi | 70% | 2490 fps | 96.7% |
| Accurate 4064 | <<locked>> | 82% | 27,514 psi | 57% | 2365 fps | 95.7% |
| ADI AR 2206H | <<locked>> | 86% | 39,291 psi | 82% | 2605 fps | 95% |
| ADI Benchmark 8208 | <<locked>> | 82% | 36,361 psi | 76% | 2520 fps | 95.6% |
| Alliant AR-Comp | <<locked>> | 80% | 32,227 psi | 67% | 2490 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 38,885 psi | 81% | 2651 fps | 95.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 36,289 psi | 76% | 2566 fps | 95.2% |
| Alliant Reloder-10x | <<locked>> | 80% | 40,016 psi | 84% | 2579 fps | 100% |
| Bofors RP3 | 28 gr | 90% | 35,215 psi | 74% | 2556 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 80% | 36,709 psi | 77% | 2484 fps | 96.4% |
| Hodgdon BL-C2 | <<locked>> | 82% | 34,069 psi | 71% | 2523 fps | 95.6% |
| Hodgdon H322 | <<locked>> | 80% | 38,885 psi | 81% | 2592 fps | 99.3% |
| Hodgdon H335 | <<locked>> | 80% | 39,363 psi | 82% | 2605 fps | 98.7% |
| Hodgdon H4895 | <<locked>> | 84% | 37,057 psi | 77% | 2566 fps | 95% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 37,666 psi | 79% | 2625 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,714 psi | 52% | 1526 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 38,290 psi | 80% | 2572 fps | 95.3% |
| IMR 3031 | 23.8 gr | 80% | 30,850 psi | 64% | 2470 fps | 98.3% |
| IMR 4895 | <<locked>> | 90% | 40,321 psi | 84% | 2664 fps | 95.5% |
| IMR 8208 XBR | <<locked>> | 82% | 36,361 psi | 76% | 2520 fps | 95.6% |
| Lovex D073.5 | <<locked>> | 80% | 37,507 psi | 78% | 2546 fps | 97% |
| Lovex D073.6 | <<locked>> | 80% | 29,863 psi | 62% | 2415 fps | 95.3% |
| Lovex S060 | <<locked>> | 86% | 40,683 psi | 85% | 2562 fps | 95.4% |
| Lovex S062 | <<locked>> | 86% | 34,287 psi | 72% | 2487 fps | 95% |
| Norma 201 | <<locked>> | 84% | 35,810 psi | 75% | 2510 fps | 95.5% |
| Norma 202 | <<locked>> | 80% | 31,270 psi | 65% | 2425 fps | 96.6% |
| Ramshot Wild Boar | <<locked>> | 86% | 40,524 psi | 85% | 2638 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,889 psi | 52% | 1568 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 38,508 psi | 80% | 2566 fps | 97.7% |
| ReloadSwiss RS 60 | 29.1 gr | 90% | 34,258 psi | 72% | 2579 fps | 95.8% |
| Rottweil R 901 | <<locked>> | 80% | 34,737 psi | 73% | 2470 fps | 97.4% |
| Rottweil R 902 | <<locked>> | 86% | 36,027 psi | 75% | 2507 fps | 95.6% |
| Rottweil R 903 | <<locked>> | 94% | 37,579 psi | 79% | 2598 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 29,863 psi | 62% | 2415 fps | 95.3% |
| Shooters World Precision | <<locked>> | 86% | 34,287 psi | 72% | 2487 fps | 95% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 40,161 psi | 84% | 2664 fps | 95% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 40,451 psi | 85% | 2625 fps | 95.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 33,489 psi | 70% | 2398 fps | 97.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 27,050 psi | 57% | 2257 fps | 96% |
| Somchem S321 | <<locked>> | 80% | 36,289 psi | 76% | 2539 fps | 95.9% |
| Somchem S335 | <<locked>> | 80% | 32,822 psi | 69% | 2398 fps | 97.9% |
| Somchem S355 | <<locked>> | 94% | 39,102 psi | 82% | 2615 fps | 95.6% |
| Vihtavuori N130 | <<locked>> | 80% | 38,218 psi | 80% | 2497 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 33,460 psi | 70% | 2411 fps | 99.3% |
| Vihtavuori N135 | <<locked>> | 80% | 28,326 psi | 59% | 2362 fps | 98.4% |
| Vihtavuori N140 | <<locked>> | 80% | 29,747 psi | 62% | 2369 fps | 96.4% |
| Vihtavuori N150 | <<locked>> | 90% | 32,779 psi | 68% | 2454 fps | 95% |
| Vihtavuori N530 | <<locked>> | 82% | 36,216 psi | 76% | 2513 fps | 95.6% |
| Vihtavuori N540 | <<locked>> | 80% | 28,514 psi | 60% | 2346 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 39,668 psi | 83% | 2585 fps | 95.2% |
| Winchester 748 | <<locked>> | 80% | 32,677 psi | 68% | 2490 fps | 95.3% |
| Winchester StaBALL Match | <<locked>> | 88% | 39,523 psi | 83% | 2628 fps | 95.8% |
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 55 powders for 6 x 52 R BB2 loaded with the .243 | 91gr | Peregrine VLR-4. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,759 fps; across all powders the maximum-charge window runs from 1,709 fps to 2,759 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 55 of the 55 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 91.0 gr projectile in 0.243" calls for a 1:7.5 twist; slower twists will usually not stabilise this weight. Hodgdon TrailBoss, ReloadSwiss RS 14, Winchester 6.5 StaBALL 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, Bofors RP3 rank at the top here: for 6 x 52 R BB2 with the .243 | 91gr | Peregrine VLR-4 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.