Load Specifications
Load data in caliber 6 x 52 R BB2 with .243 | 95gr | Barnes LRX BT bullet and 61 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Hodgdon LEVERevolution 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% | 43,091 psi | 90% | 2562 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 41,292 psi | 86% | 2559 fps | 99.1% |
| Accurate 2495 | <<locked>> | 92% | 41,553 psi | 87% | 2595 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 41,640 psi | 87% | 2605 fps | 99% |
| Accurate 4064 | <<locked>> | 94% | 41,655 psi | 87% | 2625 fps | 99.6% |
| ADI AR 2206H | <<locked>> | 88% | 42,221 psi | 88% | 2605 fps | 96.3% |
| ADI Benchmark 8208 | <<locked>> | 86% | 41,989 psi | 88% | 2575 fps | 97.5% |
| Alliant AR-Comp | <<locked>> | 88% | 43,279 psi | 90% | 2638 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 42,308 psi | 88% | 2661 fps | 97.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 41,887 psi | 88% | 2621 fps | 97.3% |
| Alliant Reloder-10x | <<locked>> | 82% | 43,294 psi | 90% | 2575 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 42,525 psi | 89% | 2631 fps | 95.8% |
| Alliant Reloder-17 | <<locked>> | 98% | 42,206 psi | 88% | 2694 fps | 96.5% |
| Bofors RP3 | <<locked>> | 94% | 41,379 psi | 86% | 2625 fps | 97.3% |
| Hodgdon Benchmark | <<locked>> | 84% | 41,727 psi | 87% | 2530 fps | 98% |
| Hodgdon BL-C2 | <<locked>> | 88% | 42,815 psi | 89% | 2644 fps | 98.3% |
| Hodgdon H322 | <<locked>> | 82% | 42,221 psi | 88% | 2595 fps | 99.8% |
| Hodgdon H335 | <<locked>> | 82% | 42,815 psi | 89% | 2612 fps | 99.5% |
| Hodgdon H4895 | <<locked>> | 88% | 42,453 psi | 89% | 2618 fps | 97% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 41,031 psi | 86% | 2638 fps | 97.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,794 psi | 71% | 1667 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 41,611 psi | 87% | 2582 fps | 96.6% |
| IMR 3031 | <<locked>> | 88% | 40,843 psi | 85% | 2625 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 42,699 psi | 89% | 2585 fps | 95.8% |
| IMR 4895 | <<locked>> | 90% | 40,785 psi | 85% | 2612 fps | 96% |
| IMR 8208 XBR | <<locked>> | 86% | 41,989 psi | 88% | 2575 fps | 97.5% |
| Lovex D073.5 | <<locked>> | 82% | 40,814 psi | 85% | 2552 fps | 98.1% |
| Lovex D073.6 | <<locked>> | 90% | 43,236 psi | 90% | 2641 fps | 99.2% |
| Lovex S060 | <<locked>> | 86% | 40,901 psi | 85% | 2507 fps | 95.9% |
| Lovex S062 | <<locked>> | 92% | 41,974 psi | 88% | 2592 fps | 97.7% |
| Norma 201 | <<locked>> | 88% | 41,408 psi | 87% | 2569 fps | 97.5% |
| Norma 202 | <<locked>> | 88% | 41,379 psi | 86% | 2585 fps | 99.3% |
| Norma 203B | <<locked>> | 92% | 41,727 psi | 87% | 2621 fps | 96.2% |
| Ramshot Big Game | <<locked>> | 92% | 42,221 psi | 88% | 2641 fps | 96% |
| Ramshot Wild Boar | <<locked>> | 86% | 41,017 psi | 86% | 2589 fps | 95.9% |
| Ramshot X-Terminator | <<locked>> | 84% | 43,047 psi | 90% | 2572 fps | 96.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,895 psi | 71% | 1706 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 41,727 psi | 87% | 2569 fps | 98.6% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 42,380 psi | 89% | 2713 fps | 98.9% |
| Rottweil R 901 | <<locked>> | 86% | 42,235 psi | 88% | 2566 fps | 99.2% |
| Rottweil R 902 | <<locked>> | 90% | 41,727 psi | 87% | 2566 fps | 97.5% |
| Rottweil R 903 | <<locked>> | 96% | 40,857 psi | 85% | 2608 fps | 96.8% |
| Shooters World Match Rifle | <<locked>> | 90% | 43,236 psi | 90% | 2641 fps | 99.2% |
| Shooters World Precision | <<locked>> | 92% | 41,974 psi | 88% | 2592 fps | 97.7% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 40,930 psi | 86% | 2575 fps | 95.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 40,944 psi | 86% | 2493 fps | 99.1% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 42,946 psi | 90% | 2539 fps | 99.8% |
| Somchem S321 | <<locked>> | 84% | 42,511 psi | 89% | 2608 fps | 98% |
| Somchem S335 | <<locked>> | 88% | 42,931 psi | 90% | 2546 fps | 99.8% |
| Somchem S341 | <<locked>> | 88% | 42,598 psi | 89% | 2595 fps | 96.2% |
| Somchem S355 | <<locked>> | 96% | 42,264 psi | 88% | 2618 fps | 96.9% |
| Vihtavuori N130 | <<locked>> | 82% | 41,278 psi | 86% | 2490 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 40,901 psi | 85% | 2497 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 42,656 psi | 89% | 2602 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 41,568 psi | 87% | 2562 fps | 99.5% |
| Vihtavuori N150 | <<locked>> | 96% | 40,538 psi | 85% | 2559 fps | 97.8% |
| Vihtavuori N530 | <<locked>> | 86% | 42,061 psi | 88% | 2572 fps | 97.6% |
| Vihtavuori N540 | <<locked>> | 92% | 42,728 psi | 89% | 2602 fps | 99.4% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 42,989 psi | 90% | 2595 fps | 96.7% |
| Winchester 748 | <<locked>> | 86% | 40,495 psi | 85% | 2608 fps | 98.1% |
| Winchester StaBALL Match | <<locked>> | 90% | 42,743 psi | 89% | 2631 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% | 35,636 psi | 74% | 2425 fps | 99.8% |
| Accurate 2460 | <<locked>> | 80% | 38,247 psi | 80% | 2503 fps | 98.6% |
| Accurate 2495 | <<locked>> | 80% | 27,615 psi | 58% | 2303 fps | 98.6% |
| Accurate 2520 | <<locked>> | 80% | 33,678 psi | 70% | 2441 fps | 97.1% |
| Accurate 4064 | <<locked>> | 80% | 26,165 psi | 55% | 2274 fps | 95.4% |
| ADI AR 2206H | <<locked>> | 86% | 39,595 psi | 83% | 2552 fps | 95.5% |
| ADI Benchmark 8208 | <<locked>> | 80% | 34,592 psi | 72% | 2421 fps | 95.3% |
| Alliant AR-Comp | <<locked>> | 80% | 32,721 psi | 68% | 2441 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 39,508 psi | 83% | 2605 fps | 96.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 36,680 psi | 77% | 2520 fps | 95.8% |
| Alliant Reloder-10x | <<locked>> | 80% | 40,915 psi | 85% | 2533 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 39,885 psi | 83% | 2582 fps | 95% |
| Alliant Reloder-17 | <<locked>> | 96% | 39,581 psi | 83% | 2638 fps | 95.6% |
| Bofors RP3 | 27.4 gr | 90% | 35,708 psi | 75% | 2513 fps | 95.6% |
| Hodgdon Benchmark | <<locked>> | 80% | 37,188 psi | 78% | 2438 fps | 96.9% |
| Hodgdon BL-C2 | <<locked>> | 80% | 32,198 psi | 67% | 2421 fps | 95.2% |
| Hodgdon H322 | <<locked>> | 80% | 39,465 psi | 82% | 2546 fps | 99.5% |
| Hodgdon H335 | <<locked>> | 80% | 40,132 psi | 84% | 2562 fps | 99.1% |
| Hodgdon H4895 | <<locked>> | 84% | 37,333 psi | 78% | 2513 fps | 95.5% |
| Hodgdon LEVERevolution | 27.1 gr | 86% | 35,766 psi | 75% | 2523 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,685 psi | 52% | 1483 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 36,550 psi | 76% | 2477 fps | 95.1% |
| IMR 3031 | <<locked>> | 80% | 31,299 psi | 65% | 2425 fps | 98.7% |
| IMR 4064 | <<locked>> | 90% | 40,030 psi | 84% | 2536 fps | 95% |
| IMR 4895 | <<locked>> | 88% | 38,247 psi | 80% | 2562 fps | 95.3% |
| IMR 8208 XBR | <<locked>> | 80% | 34,592 psi | 72% | 2421 fps | 95.3% |
| Lovex D073.5 | <<locked>> | 80% | 38,218 psi | 80% | 2503 fps | 97.5% |
| Lovex D073.6 | <<locked>> | 80% | 30,458 psi | 64% | 2375 fps | 95.9% |
| Lovex S060 | <<locked>> | 84% | 38,406 psi | 80% | 2457 fps | 95.1% |
| Lovex S062 | <<locked>> | 86% | 34,519 psi | 72% | 2438 fps | 95.5% |
| Norma 201 | <<locked>> | 82% | 34,055 psi | 71% | 2411 fps | 95.3% |
| Norma 202 | <<locked>> | 80% | 31,720 psi | 66% | 2379 fps | 97.1% |
| Norma 203B | <<locked>> | 90% | 39,102 psi | 82% | 2569 fps | 95.5% |
| Ramshot Big Game | <<locked>> | 90% | 39,233 psi | 82% | 2582 fps | 95% |
| Ramshot Wild Boar | <<locked>> | 84% | 38,464 psi | 80% | 2539 fps | 95.1% |
| Ramshot X-Terminator | <<locked>> | 82% | 40,480 psi | 85% | 2523 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,889 psi | 52% | 1522 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 39,088 psi | 82% | 2520 fps | 98.1% |
| ReloadSwiss RS 60 | 27.8 gr | 88% | 32,271 psi | 67% | 2474 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 35,157 psi | 73% | 2421 fps | 97.8% |
| Rottweil R 902 | <<locked>> | 84% | 34,345 psi | 72% | 2411 fps | 95.4% |
| Rottweil R 903 | <<locked>> | 92% | 35,636 psi | 74% | 2500 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 30,458 psi | 64% | 2375 fps | 95.9% |
| Shooters World Precision | <<locked>> | 86% | 34,519 psi | 72% | 2438 fps | 95.5% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 38,392 psi | 80% | 2526 fps | 95.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 33,881 psi | 71% | 2352 fps | 97.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 27,369 psi | 57% | 2211 fps | 96.6% |
| Somchem S321 | <<locked>> | 80% | 36,985 psi | 77% | 2497 fps | 96.6% |
| Somchem S335 | <<locked>> | 80% | 33,243 psi | 69% | 2356 fps | 98.3% |
| Somchem S341 | <<locked>> | 86% | 39,508 psi | 83% | 2539 fps | 95.3% |
| Somchem S355 | <<locked>> | 92% | 37,057 psi | 77% | 2516 fps | 95.4% |
| Vihtavuori N130 | <<locked>> | 80% | 38,653 psi | 81% | 2444 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 33,866 psi | 71% | 2362 fps | 99.5% |
| Vihtavuori N135 | <<locked>> | 80% | 28,747 psi | 60% | 2320 fps | 98.8% |
| Vihtavuori N140 | <<locked>> | 80% | 30,197 psi | 63% | 2326 fps | 97% |
| Vihtavuori N150 | <<locked>> | 90% | 33,127 psi | 69% | 2408 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 80% | 34,447 psi | 72% | 2418 fps | 95.4% |
| Vihtavuori N540 | <<locked>> | 80% | 28,979 psi | 61% | 2306 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 40,001 psi | 84% | 2536 fps | 95.8% |
| Winchester 748 | <<locked>> | 80% | 33,286 psi | 70% | 2451 fps | 96% |
| Winchester StaBALL Match | <<locked>> | 86% | 37,159 psi | 78% | 2520 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 61 powders for 6 x 52 R BB2 loaded with the .243 | 95gr | Barnes LRX BT. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,713 fps; across all powders the maximum-charge window runs from 1,667 fps to 2,713 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 61 of the 61 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 1:7.5 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, Hodgdon LEVERevolution, Bofors RP3 rank at the top here: for 6 x 52 R BB2 with the .243 | 95gr | Barnes LRX BT 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.