Load Specifications
Load data in caliber 6 x 52 R BB2 with .243 | 95gr | Barnes X S bullet and 51 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 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 2495 | <<locked>> | 84% | 40,988 psi | 86% | 2559 fps | 100% |
| Accurate 4064 | <<locked>> | 88% | 43,149 psi | 90% | 2628 fps | 99.8% |
| ADI AR 2206H | <<locked>> | 82% | 41,278 psi | 86% | 2579 fps | 96.4% |
| ADI AR 2208 | <<locked>> | 88% | 41,959 psi | 88% | 2575 fps | 95.8% |
| ADI Benchmark 8208 | <<locked>> | 82% | 43,192 psi | 90% | 2592 fps | 98.1% |
| Alliant AR-Comp | <<locked>> | 82% | 42,366 psi | 89% | 2608 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 41,466 psi | 87% | 2605 fps | 97.5% |
| Alliant Reloder-15 | <<locked>> | 86% | 41,930 psi | 88% | 2612 fps | 96% |
| Alliant Reloder-17 | <<locked>> | 92% | 40,741 psi | 85% | 2667 fps | 96.6% |
| Bofors RP3 | <<locked>> | 88% | 41,060 psi | 86% | 2608 fps | 97.5% |
| Hodgdon BL-C2 | <<locked>> | 82% | 41,481 psi | 87% | 2612 fps | 98.3% |
| Hodgdon H4895 | <<locked>> | 82% | 41,553 psi | 87% | 2592 fps | 97.1% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 42,148 psi | 88% | 2631 fps | 97% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 42,192 psi | 88% | 2657 fps | 97.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,838 psi | 73% | 1693 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 42,496 psi | 89% | 2595 fps | 97.2% |
| IMR 3031 | <<locked>> | 84% | 43,134 psi | 90% | 2654 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 41,669 psi | 87% | 2562 fps | 96% |
| IMR 4895 | <<locked>> | 86% | 42,859 psi | 90% | 2644 fps | 96.9% |
| IMR 8208 XBR | <<locked>> | 82% | 43,192 psi | 90% | 2592 fps | 98.1% |
| Lovex D073.6 | <<locked>> | 84% | 42,786 psi | 89% | 2621 fps | 99.3% |
| Lovex S060 | <<locked>> | 82% | 41,872 psi | 87% | 2523 fps | 96.6% |
| Lovex S062 | <<locked>> | 86% | 41,423 psi | 87% | 2572 fps | 97.8% |
| Norma 201 | <<locked>> | 82% | 40,814 psi | 85% | 2543 fps | 97.6% |
| Norma 202 | <<locked>> | 84% | 43,091 psi | 90% | 2605 fps | 99.6% |
| Norma 203B | <<locked>> | 86% | 41,307 psi | 86% | 2605 fps | 96.5% |
| Ramshot Big Game | <<locked>> | 86% | 40,712 psi | 85% | 2608 fps | 96% |
| Ramshot Wild Boar | <<locked>> | 82% | 42,206 psi | 88% | 2608 fps | 96.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,201 psi | 74% | 1736 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 43,279 psi | 90% | 2736 fps | 99.3% |
| Rottweil R 902 | <<locked>> | 84% | 41,437 psi | 87% | 2546 fps | 97.7% |
| Rottweil R 903 | <<locked>> | 90% | 41,321 psi | 86% | 2605 fps | 97.2% |
| Shooters World Match Rifle | <<locked>> | 84% | 42,786 psi | 89% | 2621 fps | 99.3% |
| Shooters World Precision | <<locked>> | 86% | 41,423 psi | 87% | 2572 fps | 97.8% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 42,119 psi | 88% | 2644 fps | 96.5% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 42,090 psi | 88% | 2595 fps | 96.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 42,351 psi | 88% | 2510 fps | 99.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 41,626 psi | 87% | 2510 fps | 99.9% |
| Somchem S335 | <<locked>> | 82% | 41,756 psi | 87% | 2513 fps | 99.8% |
| Somchem S341 | <<locked>> | 82% | 40,814 psi | 85% | 2559 fps | 96.1% |
| Somchem S355 | <<locked>> | 90% | 41,887 psi | 88% | 2602 fps | 97.1% |
| Somchem S365ᴾ | <<locked>> | 100% | 41,292 psi | 86% | 2684 fps | 98.3% |
| Vihtavuori N133 | <<locked>> | 82% | 42,148 psi | 88% | 2510 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 42,395 psi | 89% | 2582 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 40,944 psi | 86% | 2543 fps | 99.6% |
| Vihtavuori N150 | <<locked>> | 92% | 42,743 psi | 89% | 2592 fps | 98.5% |
| Vihtavuori N530 | <<locked>> | 82% | 43,236 psi | 90% | 2589 fps | 98.2% |
| Vihtavuori N540 | <<locked>> | 86% | 41,901 psi | 88% | 2579 fps | 99.4% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 40,973 psi | 86% | 2562 fps | 96.7% |
| Winchester 748 | <<locked>> | 82% | 41,887 psi | 88% | 2625 fps | 98.6% |
| Winchester StaBALL Match | <<locked>> | 84% | 41,394 psi | 86% | 2598 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 2495 | <<locked>> | 80% | 36,129 psi | 75% | 2464 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 34,142 psi | 71% | 2444 fps | 98.5% |
| ADI AR 2206H | <<locked>> | 80% | 39,044 psi | 82% | 2533 fps | 95.7% |
| ADI AR 2208 | <<locked>> | 86% | 39,726 psi | 83% | 2530 fps | 95.1% |
| ADI Benchmark 8208 | <<locked>> | 80% | 40,857 psi | 85% | 2546 fps | 97.6% |
| Alliant AR-Comp | <<locked>> | 80% | 39,392 psi | 82% | 2556 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 34,490 psi | 72% | 2454 fps | 95.4% |
| Alliant Reloder-15 | <<locked>> | 84% | 39,668 psi | 83% | 2566 fps | 95.3% |
| Alliant Reloder-17 | 30.1 gr | 90% | 38,566 psi | 81% | 2615 fps | 95.8% |
| Bofors RP3 | 26.4 gr | 82% | 34,200 psi | 71% | 2461 fps | 95.4% |
| Hodgdon BL-C2 | <<locked>> | 80% | 38,827 psi | 81% | 2556 fps | 97.7% |
| Hodgdon H4895 | <<locked>> | 80% | 39,262 psi | 82% | 2543 fps | 96.5% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 37,637 psi | 79% | 2536 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 35,099 psi | 73% | 2500 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,208 psi | 55% | 1519 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 37,579 psi | 79% | 2493 fps | 95.8% |
| IMR 3031 | <<locked>> | 80% | 37,826 psi | 79% | 2552 fps | 99.9% |
| IMR 4064 | <<locked>> | 84% | 39,349 psi | 82% | 2516 fps | 95.3% |
| IMR 4895 | <<locked>> | 82% | 37,942 psi | 79% | 2543 fps | 95.5% |
| IMR 8208 XBR | <<locked>> | 80% | 40,857 psi | 85% | 2546 fps | 97.6% |
| Lovex D073.6 | <<locked>> | 80% | 37,753 psi | 79% | 2523 fps | 98.4% |
| Lovex S060 | <<locked>> | 80% | 39,610 psi | 83% | 2477 fps | 95.9% |
| Lovex S062 | <<locked>> | 80% | 34,998 psi | 73% | 2431 fps | 96% |
| Norma 201 | <<locked>> | 80% | 38,653 psi | 81% | 2497 fps | 97.1% |
| Norma 202 | <<locked>> | 80% | 38,421 psi | 80% | 2513 fps | 99% |
| Norma 203B | <<locked>> | 84% | 39,044 psi | 82% | 2559 fps | 95.8% |
| Ramshot Big Game | <<locked>> | 84% | 38,174 psi | 80% | 2556 fps | 95.1% |
| Ramshot Wild Boar | <<locked>> | 80% | 39,595 psi | 83% | 2556 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,629 psi | 56% | 1558 fps | 100% |
| ReloadSwiss RS 60 | 27.4 gr | 82% | 32,082 psi | 67% | 2461 fps | 95.7% |
| Rottweil R 902 | <<locked>> | 80% | 37,086 psi | 77% | 2454 fps | 96.6% |
| Rottweil R 903 | <<locked>> | 84% | 34,432 psi | 72% | 2457 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 37,753 psi | 79% | 2523 fps | 98.4% |
| Shooters World Precision | <<locked>> | 80% | 34,998 psi | 73% | 2431 fps | 96% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 39,494 psi | 83% | 2589 fps | 95.7% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 37,362 psi | 78% | 2493 fps | 95.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 39,914 psi | 83% | 2464 fps | 99.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 32,953 psi | 69% | 2336 fps | 98.7% |
| Somchem S335 | <<locked>> | 80% | 39,552 psi | 83% | 2470 fps | 99.6% |
| Somchem S341 | <<locked>> | 80% | 38,189 psi | 80% | 2503 fps | 95.3% |
| Somchem S355 | <<locked>> | 84% | 35,447 psi | 74% | 2464 fps | 95.1% |
| Somchem S365 | <<locked>> | 92% | 32,518 psi | 68% | 2474 fps | 95.1% |
| Vihtavuori N133 | <<locked>> | 80% | 39,784 psi | 83% | 2467 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 35,476 psi | 74% | 2451 fps | 99.9% |
| Vihtavuori N140 | <<locked>> | 80% | 36,187 psi | 76% | 2448 fps | 98.9% |
| Vihtavuori N150 | <<locked>> | 82% | 31,459 psi | 66% | 2352 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 80% | 40,857 psi | 85% | 2543 fps | 97.7% |
| Vihtavuori N540 | <<locked>> | 80% | 34,824 psi | 73% | 2431 fps | 98.1% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 36,201 psi | 76% | 2457 fps | 95% |
| Winchester 748 | <<locked>> | 80% | 39,537 psi | 83% | 2579 fps | 98.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 36,651 psi | 77% | 2500 fps | 95.7% |
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 51 powders for 6 x 52 R BB2 loaded with the .243 | 95gr | Barnes X S. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,736 fps; across all powders the maximum-charge window runs from 1,693 fps to 2,736 fps. Hodgdon Hybrid 100V gives the best case fill at 100 %, and 51 of the 51 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (330 MPa), the top charges use 73–90 %, leaving at least 10 % headroom. The 95.0 gr projectile in 0.243" calls for a 1:9.0 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, Bofors RP3 rank at the top here: for 6 x 52 R BB2 with the .243 | 95gr | Barnes X S 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.