Load Specifications
Load data in caliber 6 x 52 R BB2 with .243 | 95gr | Hornady SST bullet and 57 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 Hodgdon LEVERevolution.
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% | 41,510 psi | 87% | 2546 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 40,828 psi | 85% | 2589 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 42,902 psi | 90% | 2638 fps | 99.3% |
| Accurate 4064 | <<locked>> | 90% | 41,191 psi | 86% | 2625 fps | 99.7% |
| ADI AR 2206H | <<locked>> | 86% | 43,221 psi | 90% | 2641 fps | 97% |
| ADI Benchmark 8208 | <<locked>> | 84% | 42,946 psi | 90% | 2608 fps | 98.1% |
| Alliant AR-Comp | <<locked>> | 84% | 41,466 psi | 87% | 2615 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 43,294 psi | 90% | 2661 fps | 97.9% |
| Alliant Reloder-15 | <<locked>> | 88% | 41,336 psi | 86% | 2625 fps | 95.9% |
| Alliant Reloder-17 | <<locked>> | 96% | 43,134 psi | 90% | 2736 fps | 97.3% |
| Bofors RP3 | <<locked>> | 92% | 42,438 psi | 89% | 2657 fps | 97.9% |
| Hodgdon Benchmark | <<locked>> | 82% | 42,264 psi | 88% | 2556 fps | 98.4% |
| Hodgdon BL-C2 | <<locked>> | 84% | 40,727 psi | 85% | 2618 fps | 98.2% |
| Hodgdon CFE223 | <<locked>> | 82% | 41,959 psi | 88% | 2690 fps | 96% |
| Hodgdon H4895 | <<locked>> | 84% | 41,002 psi | 86% | 2605 fps | 97% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 38,856 psi | 81% | 2582 fps | 96% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 41,742 psi | 87% | 2671 fps | 97.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,055 psi | 71% | 1690 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 41,989 psi | 88% | 2605 fps | 97.1% |
| IMR 3031 | <<locked>> | 86% | 42,293 psi | 88% | 2661 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 40,944 psi | 86% | 2569 fps | 95.8% |
| IMR 4895 | <<locked>> | 88% | 42,264 psi | 88% | 2657 fps | 96.9% |
| IMR 8208 XBR | <<locked>> | 84% | 42,946 psi | 90% | 2608 fps | 98.1% |
| Lovex D073.6 | <<locked>> | 86% | 41,698 psi | 87% | 2625 fps | 99.2% |
| Lovex S060 | <<locked>> | 84% | 41,756 psi | 87% | 2543 fps | 96.6% |
| Lovex S062 | <<locked>> | 90% | 43,047 psi | 90% | 2625 fps | 98.2% |
| Norma 201 | <<locked>> | 86% | 42,279 psi | 88% | 2598 fps | 98% |
| Norma 202 | <<locked>> | 86% | 42,554 psi | 89% | 2618 fps | 99.6% |
| Norma 203B | <<locked>> | 90% | 43,091 psi | 90% | 2661 fps | 97% |
| Ramshot Big Game | <<locked>> | 90% | 43,062 psi | 90% | 2677 fps | 96.7% |
| Ramshot Wild Boar | <<locked>> | 84% | 41,814 psi | 87% | 2621 fps | 96.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,693 psi | 72% | 1739 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 42,873 psi | 90% | 2720 fps | 96.3% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 43,004 psi | 90% | 2749 fps | 99.3% |
| Rottweil R 901 | <<locked>> | 82% | 40,988 psi | 86% | 2552 fps | 99.3% |
| Rottweil R 902 | <<locked>> | 88% | 42,554 psi | 89% | 2595 fps | 98% |
| Rottweil R 903 | <<locked>> | 94% | 42,337 psi | 88% | 2648 fps | 97.5% |
| Shooters World Match Rifle | <<locked>> | 86% | 41,698 psi | 87% | 2625 fps | 99.2% |
| Shooters World Precision | <<locked>> | 90% | 43,047 psi | 90% | 2625 fps | 98.2% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 41,655 psi | 87% | 2657 fps | 96.4% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 41,698 psi | 87% | 2608 fps | 96.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 41,655 psi | 87% | 2520 fps | 99.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 41,031 psi | 86% | 2520 fps | 99.8% |
| Somchem S321 | <<locked>> | 82% | 43,004 psi | 90% | 2631 fps | 98.4% |
| Somchem S335 | <<locked>> | 84% | 41,060 psi | 86% | 2523 fps | 99.8% |
| Somchem S341 | <<locked>> | 86% | 43,192 psi | 90% | 2625 fps | 96.8% |
| Somchem S355 | <<locked>> | 92% | 41,060 psi | 86% | 2608 fps | 97% |
| Somchem S365ᴾ | <<locked>> | 100% | 37,855 psi | 79% | 2631 fps | 97.4% |
| Vihtavuori N133 | <<locked>> | 84% | 41,611 psi | 87% | 2523 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 41,321 psi | 86% | 2589 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 42,989 psi | 90% | 2602 fps | 99.8% |
| Vihtavuori N150 | <<locked>> | 94% | 41,698 psi | 87% | 2595 fps | 98.4% |
| Vihtavuori N530 | <<locked>> | 84% | 42,989 psi | 90% | 2605 fps | 98.2% |
| Vihtavuori N540 | <<locked>> | 88% | 41,365 psi | 86% | 2589 fps | 99.4% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 40,582 psi | 85% | 2572 fps | 96.6% |
| Winchester 748 | <<locked>> | 84% | 41,495 psi | 87% | 2641 fps | 98.6% |
| Winchester StaBALL Match | <<locked>> | 86% | 40,886 psi | 85% | 2612 fps | 97% |
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% | 38,986 psi | 81% | 2500 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 31,633 psi | 66% | 2402 fps | 99.6% |
| Accurate 2520 | <<locked>> | 80% | 37,536 psi | 78% | 2533 fps | 98.4% |
| Accurate 4064 | <<locked>> | 80% | 29,936 psi | 63% | 2375 fps | 97.3% |
| ADI AR 2206H | <<locked>> | 82% | 37,985 psi | 79% | 2533 fps | 95.5% |
| ADI Benchmark 8208 | <<locked>> | 80% | 37,739 psi | 79% | 2503 fps | 96.8% |
| Alliant AR-Comp | <<locked>> | 80% | 36,376 psi | 76% | 2523 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 35,650 psi | 74% | 2507 fps | 95.9% |
| Alliant Reloder-15 | <<locked>> | 86% | 38,508 psi | 80% | 2566 fps | 95% |
| Alliant Reloder-17 | 30.8 gr | 92% | 37,927 psi | 79% | 2621 fps | 95.6% |
| Bofors RP3 | <<locked>> | 86% | 34,838 psi | 73% | 2500 fps | 95.7% |
| Hodgdon Benchmark | <<locked>> | 80% | 39,842 psi | 83% | 2507 fps | 97.9% |
| Hodgdon BL-C2 | <<locked>> | 80% | 35,694 psi | 75% | 2513 fps | 96.9% |
| Hodgdon CFE223 | <<locked>> | 80% | 39,146 psi | 82% | 2631 fps | 95.1% |
| Hodgdon H4895 | <<locked>> | 80% | 35,955 psi | 75% | 2497 fps | 95.5% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 36,550 psi | 76% | 2533 fps | 95.2% |
| Hodgdon LEVERevolution | 27.3 gr | 82% | 34,272 psi | 72% | 2503 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,396 psi | 53% | 1516 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 37,231 psi | 78% | 2510 fps | 95.8% |
| IMR 3031 | <<locked>> | 80% | 34,418 psi | 72% | 2507 fps | 99.5% |
| IMR 4064 | <<locked>> | 86% | 38,537 psi | 81% | 2520 fps | 95% |
| IMR 4895 | <<locked>> | 84% | 37,115 psi | 78% | 2549 fps | 95.3% |
| IMR 8208 XBR | <<locked>> | 80% | 37,739 psi | 79% | 2503 fps | 96.8% |
| Lovex D073.6 | <<locked>> | 80% | 33,881 psi | 71% | 2464 fps | 97.5% |
| Lovex S060 | <<locked>> | 80% | 36,753 psi | 77% | 2438 fps | 95% |
| Lovex S062 | <<locked>> | 82% | 33,489 psi | 70% | 2425 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 35,302 psi | 74% | 2451 fps | 96.1% |
| Norma 202 | <<locked>> | 80% | 35,041 psi | 73% | 2467 fps | 98.4% |
| Norma 203B | <<locked>> | 86% | 37,840 psi | 79% | 2556 fps | 95.5% |
| Ramshot Big Game | <<locked>> | 86% | 37,565 psi | 78% | 2562 fps | 95% |
| Ramshot Wild Boar | <<locked>> | 82% | 39,015 psi | 82% | 2562 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,686 psi | 54% | 1555 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 39,929 psi | 83% | 2661 fps | 95.4% |
| ReloadSwiss RS 60 | 28.1 gr | 84% | 31,154 psi | 65% | 2457 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 38,624 psi | 81% | 2507 fps | 98.9% |
| Rottweil R 902 | <<locked>> | 80% | 33,460 psi | 70% | 2402 fps | 95.4% |
| Rottweil R 903 | <<locked>> | 88% | 35,114 psi | 73% | 2500 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 33,881 psi | 71% | 2464 fps | 97.5% |
| Shooters World Precision | <<locked>> | 82% | 33,489 psi | 70% | 2425 fps | 95.5% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 38,943 psi | 81% | 2598 fps | 95.6% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 36,709 psi | 77% | 2503 fps | 95% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 36,767 psi | 77% | 2425 fps | 98.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 30,008 psi | 63% | 2290 fps | 97.9% |
| Somchem S321 | <<locked>> | 80% | 40,118 psi | 84% | 2575 fps | 97.8% |
| Somchem S335 | <<locked>> | 80% | 36,492 psi | 76% | 2434 fps | 99.2% |
| Somchem S341 | <<locked>> | 82% | 37,565 psi | 78% | 2513 fps | 95.2% |
| Somchem S355 | <<locked>> | 88% | 36,027 psi | 75% | 2503 fps | 95.4% |
| Somchem S365 | <<locked>> | 96% | 33,243 psi | 69% | 2516 fps | 95.6% |
| Vihtavuori N133 | <<locked>> | 80% | 36,796 psi | 77% | 2431 fps | 99.9% |
| Vihtavuori N135 | <<locked>> | 80% | 31,966 psi | 67% | 2402 fps | 99.6% |
| Vihtavuori N140 | <<locked>> | 80% | 32,982 psi | 69% | 2402 fps | 98.2% |
| Vihtavuori N150 | <<locked>> | 86% | 32,213 psi | 67% | 2398 fps | 95.7% |
| Vihtavuori N530 | <<locked>> | 80% | 37,637 psi | 79% | 2500 fps | 96.9% |
| Vihtavuori N540 | <<locked>> | 80% | 31,952 psi | 67% | 2388 fps | 97.4% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 37,942 psi | 79% | 2516 fps | 95.7% |
| Winchester 748 | <<locked>> | 80% | 36,318 psi | 76% | 2533 fps | 97.4% |
| Winchester StaBALL Match | <<locked>> | 82% | 35,882 psi | 75% | 2507 fps | 95.5% |
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 57 powders for 6 x 52 R BB2 loaded with the .243 | 95gr | Hornady SST. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,749 fps; across all powders the maximum-charge window runs from 1,690 fps to 2,749 fps. Hodgdon Hybrid 100V gives the best case fill at 100 %, and 57 of the 57 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 95.0 gr projectile in 0.243" calls for a 1:9.5 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, Hodgdon LEVERevolution rank at the top here: for 6 x 52 R BB2 with the .243 | 95gr | Hornady SST 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.