Load Specifications
Load data in caliber 6 x 52 R BB2 with .243 | 95gr | Barnes TSX 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>> | 84% | 42,844 psi | 90% | 2575 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 41,669 psi | 87% | 2612 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 41,597 psi | 87% | 2621 fps | 99.2% |
| Accurate 4064 | <<locked>> | 92% | 42,148 psi | 88% | 2651 fps | 99.8% |
| ADI AR 2206H | <<locked>> | 86% | 42,119 psi | 88% | 2628 fps | 96.7% |
| ADI AR 2208 | <<locked>> | 92% | 42,989 psi | 90% | 2621 fps | 96.1% |
| ADI Benchmark 8208 | <<locked>> | 84% | 41,901 psi | 88% | 2595 fps | 97.9% |
| Alliant AR-Comp | <<locked>> | 86% | 43,105 psi | 90% | 2648 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 41,698 psi | 87% | 2638 fps | 97.6% |
| Alliant Reloder-15 | <<locked>> | 90% | 42,728 psi | 89% | 2657 fps | 96.3% |
| Alliant Reloder-17 | <<locked>> | 96% | 42,061 psi | 88% | 2720 fps | 97.1% |
| Bofors RP3 | <<locked>> | 92% | 41,089 psi | 86% | 2641 fps | 97.6% |
| Hodgdon Benchmark | <<locked>> | 82% | 41,321 psi | 86% | 2543 fps | 98.2% |
| Hodgdon BL-C2 | <<locked>> | 86% | 42,525 psi | 89% | 2661 fps | 98.6% |
| Hodgdon H4895 | <<locked>> | 86% | 42,380 psi | 89% | 2638 fps | 97.4% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 43,250 psi | 90% | 2703 fps | 98% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,808 psi | 71% | 1690 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 41,017 psi | 86% | 2592 fps | 96.9% |
| IMR 3031 | <<locked>> | 86% | 41,147 psi | 86% | 2648 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 42,467 psi | 89% | 2605 fps | 96.3% |
| IMR 4895 | <<locked>> | 88% | 40,727 psi | 85% | 2635 fps | 96.5% |
| IMR 8208 XBR | <<locked>> | 84% | 41,901 psi | 88% | 2595 fps | 97.9% |
| Lovex D073.6 | <<locked>> | 88% | 43,062 psi | 90% | 2657 fps | 99.4% |
| Lovex S060 | <<locked>> | 86% | 42,902 psi | 90% | 2572 fps | 96.9% |
| Lovex S062 | <<locked>> | 90% | 41,872 psi | 87% | 2612 fps | 98% |
| Norma 201 | <<locked>> | 86% | 41,031 psi | 86% | 2582 fps | 97.8% |
| Norma 202 | <<locked>> | 86% | 40,988 psi | 86% | 2595 fps | 99.4% |
| Norma 203B | <<locked>> | 90% | 41,945 psi | 88% | 2648 fps | 96.7% |
| Ramshot Big Game | <<locked>> | 90% | 41,597 psi | 87% | 2654 fps | 96.3% |
| Ramshot Wild Boar | <<locked>> | 84% | 40,741 psi | 85% | 2605 fps | 96.3% |
| Ramshot X-Terminator | <<locked>> | 82% | 42,772 psi | 89% | 2589 fps | 96.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,924 psi | 71% | 1729 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 41,321 psi | 86% | 2697 fps | 95.9% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 41,959 psi | 88% | 2733 fps | 99.2% |
| Rottweil R 901 | <<locked>> | 84% | 42,032 psi | 88% | 2582 fps | 99.4% |
| Rottweil R 902 | <<locked>> | 88% | 41,292 psi | 86% | 2579 fps | 97.8% |
| Rottweil R 903 | <<locked>> | 94% | 40,988 psi | 86% | 2631 fps | 97.2% |
| Shooters World Match Rifle | <<locked>> | 88% | 43,062 psi | 90% | 2657 fps | 99.4% |
| Shooters World Precision | <<locked>> | 90% | 41,872 psi | 87% | 2612 fps | 98% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 43,163 psi | 90% | 2690 fps | 96.8% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 43,207 psi | 90% | 2641 fps | 96.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 43,265 psi | 90% | 2556 fps | 99.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 42,627 psi | 89% | 2552 fps | 99.9% |
| Somchem S321 | <<locked>> | 82% | 41,872 psi | 87% | 2615 fps | 98.2% |
| Somchem S335 | <<locked>> | 86% | 42,409 psi | 89% | 2556 fps | 99.9% |
| Somchem S341 | <<locked>> | 86% | 42,163 psi | 88% | 2612 fps | 96.6% |
| Somchem S355 | <<locked>> | 94% | 42,395 psi | 89% | 2641 fps | 97.3% |
| Somchem S365ᴾ | <<locked>> | 100% | 36,724 psi | 77% | 2612 fps | 97% |
| Vihtavuori N133 | <<locked>> | 86% | 43,250 psi | 90% | 2556 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 42,757 psi | 89% | 2621 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 41,437 psi | 87% | 2582 fps | 99.7% |
| Vihtavuori N150 | <<locked>> | 96% | 43,236 psi | 90% | 2628 fps | 98.7% |
| Vihtavuori N530 | <<locked>> | 84% | 41,510 psi | 87% | 2585 fps | 97.9% |
| Vihtavuori N540 | <<locked>> | 90% | 42,757 psi | 89% | 2621 fps | 99.6% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 42,453 psi | 89% | 2615 fps | 97.2% |
| Winchester 748 | <<locked>> | 84% | 40,379 psi | 84% | 2625 fps | 98.4% |
| Winchester StaBALL Match | <<locked>> | 88% | 42,786 psi | 89% | 2654 fps | 97.5% |
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% | 37,768 psi | 79% | 2484 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 29,617 psi | 62% | 2365 fps | 99.3% |
| Accurate 2520 | <<locked>> | 80% | 36,230 psi | 76% | 2513 fps | 98.2% |
| Accurate 4064 | <<locked>> | 80% | 28,050 psi | 59% | 2339 fps | 96.7% |
| ADI AR 2206H | <<locked>> | 82% | 36,883 psi | 77% | 2516 fps | 95.1% |
| ADI AR 2208 | <<locked>> | 90% | 40,480 psi | 85% | 2572 fps | 95.4% |
| ADI Benchmark 8208 | <<locked>> | 80% | 36,724 psi | 77% | 2490 fps | 96.5% |
| Alliant AR-Comp | <<locked>> | 80% | 34,838 psi | 73% | 2500 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 34,171 psi | 71% | 2484 fps | 95.3% |
| Alliant Reloder-15 | <<locked>> | 88% | 39,784 psi | 83% | 2598 fps | 95.5% |
| Alliant Reloder-17 | 30.7 gr | 92% | 36,564 psi | 76% | 2595 fps | 95.1% |
| Bofors RP3 | <<locked>> | 86% | 33,533 psi | 70% | 2480 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 38,899 psi | 81% | 2497 fps | 97.7% |
| Hodgdon BL-C2 | <<locked>> | 80% | 34,200 psi | 71% | 2487 fps | 96.4% |
| Hodgdon H4895 | <<locked>> | 80% | 34,911 psi | 73% | 2480 fps | 95.1% |
| Hodgdon LEVERevolution | 27.9 gr | 84% | 35,346 psi | 74% | 2536 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,121 psi | 52% | 1512 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 35,882 psi | 75% | 2484 fps | 95.3% |
| IMR 3031 | <<locked>> | 80% | 33,315 psi | 70% | 2490 fps | 99.4% |
| IMR 4064 | <<locked>> | 88% | 39,914 psi | 83% | 2556 fps | 95.5% |
| IMR 4895 | <<locked>> | 86% | 38,261 psi | 80% | 2582 fps | 95.7% |
| IMR 8208 XBR | <<locked>> | 80% | 36,724 psi | 77% | 2490 fps | 96.5% |
| Lovex D073.6 | <<locked>> | 80% | 32,590 psi | 68% | 2444 fps | 97.1% |
| Lovex S060 | <<locked>> | 82% | 38,072 psi | 80% | 2474 fps | 95.5% |
| Lovex S062 | <<locked>> | 82% | 32,343 psi | 68% | 2405 fps | 95.1% |
| Norma 201 | <<locked>> | 80% | 33,692 psi | 70% | 2425 fps | 95.6% |
| Norma 202 | <<locked>> | 80% | 33,953 psi | 71% | 2448 fps | 98.1% |
| Norma 203B | <<locked>> | 86% | 36,695 psi | 77% | 2539 fps | 95.1% |
| Ramshot Big Game | <<locked>> | 88% | 39,189 psi | 82% | 2605 fps | 95.6% |
| Ramshot Wild Boar | <<locked>> | 82% | 37,985 psi | 79% | 2549 fps | 95.4% |
| Ramshot X-Terminator | <<locked>> | 80% | 39,914 psi | 83% | 2533 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,338 psi | 53% | 1552 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 38,812 psi | 81% | 2644 fps | 95% |
| ReloadSwiss RS 60 | 28.7 gr | 86% | 32,010 psi | 67% | 2493 fps | 95.8% |
| Rottweil R 901 | <<locked>> | 80% | 37,202 psi | 78% | 2487 fps | 98.6% |
| Rottweil R 902 | <<locked>> | 80% | 32,198 psi | 67% | 2382 fps | 95% |
| Rottweil R 903 | <<locked>> | 90% | 36,071 psi | 75% | 2530 fps | 95.8% |
| Shooters World Match Rifle | <<locked>> | 80% | 32,590 psi | 68% | 2444 fps | 97.1% |
| Shooters World Precision | <<locked>> | 82% | 32,343 psi | 68% | 2405 fps | 95.1% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 37,884 psi | 79% | 2582 fps | 95.2% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 37,913 psi | 79% | 2536 fps | 95.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 35,737 psi | 75% | 2411 fps | 98.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 29,051 psi | 61% | 2274 fps | 97.6% |
| Somchem S321 | <<locked>> | 80% | 39,030 psi | 82% | 2559 fps | 97.5% |
| Somchem S335 | <<locked>> | 80% | 34,983 psi | 73% | 2411 fps | 99% |
| Somchem S341 | <<locked>> | 84% | 39,262 psi | 82% | 2556 fps | 95.7% |
| Somchem S355 | <<locked>> | 88% | 34,795 psi | 73% | 2484 fps | 95% |
| Somchem S365 | <<locked>> | 96% | 32,155 psi | 67% | 2497 fps | 95.1% |
| Vihtavuori N133 | <<locked>> | 80% | 35,810 psi | 75% | 2421 fps | 99.8% |
| Vihtavuori N135 | <<locked>> | 80% | 30,763 psi | 64% | 2382 fps | 99.4% |
| Vihtavuori N140 | <<locked>> | 80% | 31,923 psi | 67% | 2385 fps | 97.9% |
| Vihtavuori N150 | <<locked>> | 86% | 31,125 psi | 65% | 2379 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 80% | 36,564 psi | 76% | 2484 fps | 96.6% |
| Vihtavuori N540 | <<locked>> | 80% | 30,545 psi | 64% | 2362 fps | 96.9% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 36,985 psi | 77% | 2503 fps | 95.4% |
| Winchester 748 | <<locked>> | 80% | 35,259 psi | 74% | 2516 fps | 97.1% |
| Winchester StaBALL Match | <<locked>> | 82% | 34,476 psi | 72% | 2480 fps | 95% |
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 | Barnes TSX. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,733 fps; across all powders the maximum-charge window runs from 1,690 fps to 2,733 fps. Hodgdon TrailBoss 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 1:9.0 twist; slower twists will usually not stabilise this weight. Hodgdon TrailBoss, ReloadSwiss RS 14, Somchem S365 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 | Barnes TSX 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.