Load Specifications
Bullet:.243 | 85gr | Barnes TSX BT
Bullet Manufacturer:Barnes
Bullet Weight:85 gr
Bullet Diameter:0.243"
Bullet Length:<<locked>>
Caliber:6 x 52 R Bretschneider load data
Case Length (l3):2.04"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:36.2 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:23.62"
Max. allowed Pressure:47,862 psi
Recommended Twist Rate:1:9.5
Load data in caliber 6 x 52 R Bretschneider with .243 | 85gr | Barnes TSX BT bullet and 122 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant AR-Comp, IMR 3031 and Accurate 2520.
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.
A valid access license is required to use the Personalized Load Calculator.
You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 92% | 42,627 psi | 89% | 2648 fps | 99.7% |
| Accurate 2015 | <<locked>> | 90% | 41,147 psi | 86% | 2635 fps | 99.6% |
| Accurate 2015 | <<locked>> | 90% | 42,235 psi | 88% | 2661 fps | 99.8% |
| Accurate 2460 | <<locked>> | 88% | 40,828 psi | 85% | 2635 fps | 97.4% |
| Accurate 2460 | <<locked>> | 88% | 42,250 psi | 88% | 2674 fps | 97.9% |
| Accurate 2460 | <<locked>> | 88% | 43,265 psi | 90% | 2703 fps | 98.2% |
| Accurate 2495ᴾ | <<locked>> | 100% | 42,699 psi | 89% | 2717 fps | 99.8% |
| Accurate 2495 | <<locked>> | 98% | 41,524 psi | 87% | 2710 fps | 99.8% |
| Accurate 2495 | <<locked>> | 98% | 42,554 psi | 89% | 2733 fps | 99.9% |
| Accurate 2520 | <<locked>> | 92% | 40,741 psi | 85% | 2671 fps | 97% |
| Accurate 2520 | <<locked>> | 92% | 42,627 psi | 89% | 2720 fps | 97.7% |
| Accurate 2520 | <<locked>> | 90% | 40,567 psi | 85% | 2690 fps | 97.3% |
| Accurate 4064ᴾ | <<locked>> | 100% | 39,682 psi | 83% | 2684 fps | 97.9% |
| Accurate 4064ᴾ | <<locked>> | 100% | 41,089 psi | 86% | 2720 fps | 98.4% |
| Accurate 4064ᴾ | <<locked>> | 100% | 42,554 psi | 89% | 2756 fps | 98.8% |
| Accurate LT-30 | <<locked>> | 84% | 42,786 psi | 89% | 2569 fps | 98.9% |
| Accurate LT-30 | <<locked>> | 82% | 41,379 psi | 86% | 2559 fps | 98.8% |
| Accurate LT-30 | <<locked>> | 82% | 42,409 psi | 89% | 2585 fps | 99.1% |
| Accurate LT-32 | <<locked>> | 84% | 43,178 psi | 90% | 2575 fps | 97.4% |
| Accurate LT-32 | <<locked>> | 82% | 41,771 psi | 87% | 2566 fps | 97.3% |
| Accurate LT-32 | <<locked>> | 82% | 42,801 psi | 89% | 2595 fps | 97.7% |
| ADI AR 2207 | <<locked>> | 82% | 42,786 psi | 89% | 2621 fps | 100% |
| ADI AR 2219 | <<locked>> | 84% | 40,379 psi | 84% | 2648 fps | 98.4% |
| ADI AR 2219 | <<locked>> | 84% | 41,930 psi | 88% | 2694 fps | 98.8% |
| ADI AR 2219 | <<locked>> | 84% | 42,946 psi | 90% | 2720 fps | 99.1% |
| Alliant AR-Comp | <<locked>> | 94% | 42,090 psi | 88% | 2723 fps | 100% |
| Alliant AR-Comp | <<locked>> | 92% | 41,017 psi | 86% | 2717 fps | 100% |
| Alliant AR-Comp | <<locked>> | 92% | 41,553 psi | 87% | 2733 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 88% | 43,076 psi | 90% | 2671 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 86% | 41,785 psi | 87% | 2661 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 86% | 42,902 psi | 90% | 2687 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 84% | 41,162 psi | 86% | 2556 fps | 98.8% |
| Baschieri & Pellagri 106 | <<locked>> | 84% | 42,380 psi | 89% | 2592 fps | 99.2% |
| Baschieri & Pellagri 106 | <<locked>> | 84% | 43,207 psi | 90% | 2615 fps | 99.4% |
| Hodgdon Benchmark | <<locked>> | 90% | 42,061 psi | 88% | 2605 fps | 95.9% |
| Hodgdon Benchmark | <<locked>> | 88% | 41,002 psi | 86% | 2602 fps | 95.9% |
| Hodgdon Benchmark | <<locked>> | 88% | 41,901 psi | 88% | 2628 fps | 96.3% |
| Hodgdon BL-C2 | <<locked>> | 94% | 41,930 psi | 88% | 2710 fps | 96% |
| Hodgdon BL-C2 | <<locked>> | 92% | 40,640 psi | 85% | 2700 fps | 95.9% |
| Hodgdon BL-C2 | <<locked>> | 92% | 41,495 psi | 87% | 2723 fps | 96.3% |
| Hodgdon H322 | <<locked>> | 88% | 41,887 psi | 88% | 2677 fps | 98.7% |
| Hodgdon H322 | <<locked>> | 86% | 40,930 psi | 86% | 2674 fps | 98.7% |
| Hodgdon H322 | <<locked>> | 86% | 41,930 psi | 88% | 2700 fps | 98.9% |
| Hodgdon H335 | <<locked>> | 88% | 42,815 psi | 89% | 2697 fps | 98% |
| Hodgdon H335 | <<locked>> | 86% | 41,684 psi | 87% | 2687 fps | 98% |
| Hodgdon H335 | <<locked>> | 86% | 42,583 psi | 89% | 2713 fps | 98.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,401 psi | 68% | 1693 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,605 psi | 68% | 1713 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,808 psi | 69% | 1722 fps | 100% |
| IMR 3031 | <<locked>> | 96% | 42,685 psi | 89% | 2756 fps | 99.4% |
| IMR 3031 | <<locked>> | 94% | 41,568 psi | 87% | 2746 fps | 99.4% |
| IMR 3031 | <<locked>> | 94% | 42,569 psi | 89% | 2772 fps | 99.6% |
| IMR 4198 | <<locked>> | 86% | 42,308 psi | 88% | 2612 fps | 100% |
| IMR 4198 | <<locked>> | 84% | 41,075 psi | 86% | 2602 fps | 100% |
| IMR 4198 | <<locked>> | 84% | 41,742 psi | 87% | 2625 fps | 100% |
| Lovex D073.4 | <<locked>> | 82% | 40,785 psi | 85% | 2638 fps | 96.7% |
| Lovex D073.4 | <<locked>> | 82% | 42,366 psi | 89% | 2684 fps | 97.3% |
| Lovex D073.5 | <<locked>> | 88% | 40,553 psi | 85% | 2628 fps | 95.9% |
| Lovex D073.5 | <<locked>> | 88% | 42,409 psi | 89% | 2677 fps | 96.7% |
| Lovex D073.5 | <<locked>> | 88% | 43,308 psi | 90% | 2700 fps | 97.1% |
| Lovex D073.6 | <<locked>> | 96% | 41,365 psi | 86% | 2697 fps | 97.1% |
| Lovex D073.6 | <<locked>> | 96% | 43,250 psi | 90% | 2743 fps | 97.8% |
| Lovex D073.6 | <<locked>> | 94% | 41,640 psi | 87% | 2723 fps | 97.6% |
| Lovex S062 | <<locked>> | 98% | 42,322 psi | 88% | 2690 fps | 95.8% |
| Norma 200 | <<locked>> | 84% | 43,033 psi | 90% | 2651 fps | 100% |
| Norma 200 | <<locked>> | 82% | 41,771 psi | 87% | 2641 fps | 100% |
| Norma 200 | <<locked>> | 82% | 42,438 psi | 89% | 2661 fps | 100% |
| Norma 201 | <<locked>> | 94% | 43,134 psi | 90% | 2700 fps | 96.1% |
| Norma 202 | <<locked>> | 96% | 43,163 psi | 90% | 2703 fps | 98.1% |
| Norma 202 | <<locked>> | 94% | 42,047 psi | 88% | 2697 fps | 98.1% |
| Norma 202 | <<locked>> | 94% | 42,975 psi | 90% | 2720 fps | 98.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 32,387 psi | 68% | 1736 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 32,576 psi | 68% | 1752 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 32,793 psi | 69% | 1765 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 88% | 41,713 psi | 87% | 2648 fps | 96.7% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 40,683 psi | 85% | 2644 fps | 96.7% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 41,597 psi | 87% | 2671 fps | 97.1% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 41,626 psi | 87% | 2776 fps | 96.5% |
| Rottweil R 901 | <<locked>> | 92% | 41,727 psi | 87% | 2641 fps | 97.6% |
| Rottweil R 901 | <<locked>> | 92% | 43,236 psi | 90% | 2684 fps | 98.1% |
| Rottweil R 901 | <<locked>> | 90% | 41,365 psi | 86% | 2657 fps | 97.8% |
| Shooters World AR Plus | <<locked>> | 82% | 40,785 psi | 85% | 2638 fps | 96.7% |
| Shooters World AR Plus | <<locked>> | 82% | 42,366 psi | 89% | 2684 fps | 97.3% |
| Shooters World Match Rifle | <<locked>> | 96% | 41,365 psi | 86% | 2697 fps | 97.1% |
| Shooters World Match Rifle | <<locked>> | 96% | 43,250 psi | 90% | 2743 fps | 97.8% |
| Shooters World Match Rifle | <<locked>> | 94% | 41,640 psi | 87% | 2723 fps | 97.6% |
| Shooters World Precision | <<locked>> | 98% | 42,322 psi | 88% | 2690 fps | 95.8% |
| SNPE Vectan SP 10 | <<locked>> | 84% | 41,263 psi | 86% | 2657 fps | 97.6% |
| SNPE Vectan SP 10 | <<locked>> | 84% | 42,685 psi | 89% | 2700 fps | 98.1% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 40,335 psi | 84% | 2661 fps | 97.7% |
| SNPE Vectan SP 3 | <<locked>> | 86% | 41,669 psi | 87% | 2638 fps | 99.2% |
| SNPE Vectan SP 3 | <<locked>> | 86% | 42,888 psi | 90% | 2674 fps | 99.5% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 41,046 psi | 86% | 2648 fps | 99.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 92% | 41,162 psi | 86% | 2572 fps | 97.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 92% | 42,598 psi | 89% | 2615 fps | 98.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 40,611 psi | 85% | 2585 fps | 97.8% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 42,583 psi | 89% | 2612 fps | 98.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 98% | 41,307 psi | 86% | 2605 fps | 98.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 98% | 42,163 psi | 88% | 2628 fps | 99% |
| Somchem S321 | <<locked>> | 88% | 41,930 psi | 88% | 2697 fps | 96.1% |
| Somchem S335 | <<locked>> | 94% | 42,641 psi | 89% | 2621 fps | 98.6% |
| Somchem S335 | <<locked>> | 92% | 41,089 psi | 86% | 2608 fps | 98.6% |
| Somchem S335 | <<locked>> | 92% | 41,974 psi | 88% | 2631 fps | 98.8% |
| Vihtavuori N120 | <<locked>> | 82% | 42,902 psi | 90% | 2579 fps | 100% |
| Vihtavuori N130 | <<locked>> | 88% | 41,423 psi | 87% | 2582 fps | 99.8% |
| Vihtavuori N130 | <<locked>> | 88% | 42,511 psi | 89% | 2615 fps | 99.9% |
| Vihtavuori N130 | <<locked>> | 86% | 40,683 psi | 85% | 2592 fps | 99.9% |
| Vihtavuori N133 | <<locked>> | 94% | 43,250 psi | 90% | 2628 fps | 99.7% |
| Vihtavuori N133 | <<locked>> | 92% | 42,163 psi | 88% | 2621 fps | 99.7% |
| Vihtavuori N133 | <<locked>> | 92% | 43,163 psi | 90% | 2648 fps | 99.8% |
| Vihtavuori N135 | <<locked>> | 98% | 40,915 psi | 85% | 2671 fps | 99.7% |
| Vihtavuori N135 | <<locked>> | 98% | 42,960 psi | 90% | 2720 fps | 99.9% |
| Vihtavuori N135 | <<locked>> | 96% | 41,466 psi | 87% | 2700 fps | 99.8% |
| Vihtavuori N140 | <<locked>> | 96% | 41,147 psi | 86% | 2641 fps | 98% |
| Vihtavuori N140 | <<locked>> | 96% | 42,409 psi | 89% | 2677 fps | 98.5% |
| Vihtavuori N140 | <<locked>> | 94% | 40,872 psi | 85% | 2657 fps | 98.3% |
| Vihtavuori N540 | <<locked>> | 98% | 42,293 psi | 88% | 2677 fps | 97.8% |
| Vihtavuori N540 | <<locked>> | 96% | 40,988 psi | 86% | 2664 fps | 97.7% |
| Vihtavuori N540 | <<locked>> | 96% | 41,756 psi | 87% | 2687 fps | 98% |
| Winchester 748 | <<locked>> | 94% | 43,047 psi | 90% | 2730 fps | 96.5% |
| Winchester 748 | <<locked>> | 92% | 41,727 psi | 87% | 2723 fps | 96.5% |
| Winchester 748 | <<locked>> | 92% | 42,554 psi | 89% | 2746 fps | 96.9% |
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% | 28,616 psi | 60% | 2349 fps | 96.6% |
| Accurate 2015 | <<locked>> | 80% | 29,718 psi | 62% | 2388 fps | 97.3% |
| Accurate 2015 | <<locked>> | 80% | 30,676 psi | 64% | 2418 fps | 97.7% |
| Accurate 2460 | <<locked>> | 82% | 33,156 psi | 69% | 2474 fps | 95% |
| Accurate 2460 | <<locked>> | 82% | 34,185 psi | 71% | 2510 fps | 95.7% |
| Accurate 2460 | <<locked>> | 80% | 32,721 psi | 68% | 2484 fps | 95.3% |
| Accurate 2495 | <<locked>> | 84% | 24,279 psi | 51% | 2300 fps | 95.2% |
| Accurate 2495 | <<locked>> | 82% | 23,743 psi | 50% | 2293 fps | 95.1% |
| Accurate 2495 | <<locked>> | 82% | 24,337 psi | 51% | 2313 fps | 95.6% |
| Accurate 2520 | 26.6 gr | 88% | 35,534 psi | 74% | 2566 fps | 95.4% |
| Accurate 2520 | 26 gr | 86% | 34,301 psi | 72% | 2549 fps | 95.2% |
| Accurate 2520 | 26 gr | 86% | 35,201 psi | 74% | 2579 fps | 95.7% |
| Accurate 4064 | <<locked>> | 94% | 32,460 psi | 68% | 2526 fps | 95.8% |
| Accurate 4064 | <<locked>> | 92% | 31,459 psi | 66% | 2513 fps | 95.7% |
| Accurate 4064 | <<locked>> | 90% | 30,487 psi | 64% | 2493 fps | 95.4% |
| Accurate LT-30 | <<locked>> | 80% | 38,000 psi | 79% | 2477 fps | 98% |
| Accurate LT-30 | <<locked>> | 80% | 39,073 psi | 82% | 2513 fps | 98.4% |
| Accurate LT-30 | <<locked>> | 80% | 39,610 psi | 83% | 2533 fps | 98.6% |
| Accurate LT-32 | <<locked>> | 80% | 38,363 psi | 80% | 2480 fps | 96.1% |
| Accurate LT-32 | <<locked>> | 80% | 39,436 psi | 82% | 2520 fps | 96.7% |
| Accurate LT-32 | <<locked>> | 80% | 39,987 psi | 84% | 2539 fps | 97% |
| ADI AR 2207 | <<locked>> | 80% | 40,161 psi | 84% | 2575 fps | 100% |
| ADI AR 2219 | <<locked>> | 80% | 35,302 psi | 74% | 2543 fps | 97.1% |
| ADI AR 2219 | <<locked>> | 80% | 36,782 psi | 77% | 2589 fps | 97.8% |
| ADI AR 2219 | <<locked>> | 80% | 37,304 psi | 78% | 2608 fps | 98% |
| Alliant AR-Comp | 22.2 gr | 80% | 26,527 psi | 55% | 2365 fps | 98.3% |
| Alliant AR-Comp | 22.2 gr | 80% | 27,499 psi | 57% | 2408 fps | 98.8% |
| Alliant AR-Comp | 22.2 gr | 80% | 28,021 psi | 59% | 2431 fps | 99.1% |
| Alliant Reloder-10x | <<locked>> | 80% | 33,576 psi | 70% | 2480 fps | 99% |
| Alliant Reloder-10x | <<locked>> | 80% | 34,418 psi | 72% | 2510 fps | 99.3% |
| Alliant Reloder-10x | <<locked>> | 80% | 35,491 psi | 74% | 2543 fps | 99.5% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 36,376 psi | 76% | 2464 fps | 97.9% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 37,202 psi | 78% | 2493 fps | 98.3% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 38,014 psi | 79% | 2520 fps | 98.6% |
| Hodgdon Benchmark | <<locked>> | 88% | 39,711 psi | 83% | 2562 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 86% | 38,363 psi | 80% | 2549 fps | 95.1% |
| Hodgdon Benchmark | <<locked>> | 86% | 39,233 psi | 82% | 2575 fps | 95.5% |
| Hodgdon BL-C2 | <<locked>> | 92% | 39,015 psi | 82% | 2651 fps | 95.1% |
| Hodgdon BL-C2 | <<locked>> | 90% | 37,913 psi | 79% | 2644 fps | 95.1% |
| Hodgdon BL-C2 | <<locked>> | 90% | 38,740 psi | 81% | 2667 fps | 95.5% |
| Hodgdon H322 | <<locked>> | 80% | 32,416 psi | 68% | 2470 fps | 96.1% |
| Hodgdon H322 | <<locked>> | 80% | 33,402 psi | 70% | 2510 fps | 96.7% |
| Hodgdon H322 | <<locked>> | 80% | 33,939 psi | 71% | 2530 fps | 97.1% |
| Hodgdon H335 | <<locked>> | 80% | 32,576 psi | 68% | 2477 fps | 95% |
| Hodgdon H335 | <<locked>> | 80% | 33,837 psi | 71% | 2523 fps | 95.8% |
| Hodgdon H335 | <<locked>> | 80% | 34,301 psi | 72% | 2539 fps | 96.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,525 psi | 49% | 1506 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,946 psi | 50% | 1529 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,844 psi | 50% | 1535 fps | 100% |
| IMR 3031 | 23.3 gr | 84% | 28,776 psi | 60% | 2431 fps | 95.5% |
| IMR 3031 | 22.7 gr | 82% | 27,949 psi | 58% | 2421 fps | 95.4% |
| IMR 3031 | 22.2 gr | 80% | 26,832 psi | 56% | 2395 fps | 95% |
| IMR 4198 | <<locked>> | 80% | 35,143 psi | 73% | 2470 fps | 99.7% |
| IMR 4198 | <<locked>> | 80% | 36,434 psi | 76% | 2513 fps | 99.9% |
| IMR 4198 | <<locked>> | 80% | 37,086 psi | 77% | 2533 fps | 100% |
| Lovex D073.4 | <<locked>> | 80% | 38,334 psi | 80% | 2589 fps | 96% |
| Lovex D073.4 | <<locked>> | 80% | 39,407 psi | 82% | 2625 fps | 96.6% |
| Lovex D073.5 | <<locked>> | 86% | 37,695 psi | 79% | 2572 fps | 95.1% |
| Lovex D073.5 | <<locked>> | 84% | 36,796 psi | 77% | 2566 fps | 95.1% |
| Lovex D073.5 | <<locked>> | 84% | 37,710 psi | 79% | 2592 fps | 95.6% |
| Lovex D073.6 | <<locked>> | 92% | 36,027 psi | 75% | 2589 fps | 95.5% |
| Lovex D073.6 | <<locked>> | 90% | 35,186 psi | 74% | 2582 fps | 95.5% |
| Lovex D073.6 | <<locked>> | 88% | 33,562 psi | 70% | 2552 fps | 95.1% |
| Lovex S062 | <<locked>> | 96% | 39,914 psi | 83% | 2644 fps | 95.1% |
| Norma 200 | <<locked>> | 80% | 37,608 psi | 79% | 2549 fps | 99.9% |
| Norma 200 | <<locked>> | 80% | 38,899 psi | 81% | 2589 fps | 100% |
| Norma 200 | <<locked>> | 80% | 40,030 psi | 84% | 2615 fps | 100% |
| Norma 201 | <<locked>> | 92% | 40,321 psi | 84% | 2644 fps | 95.3% |
| Norma 202 | <<locked>> | 88% | 33,446 psi | 70% | 2500 fps | 95.4% |
| Norma 202 | <<locked>> | 86% | 32,430 psi | 68% | 2490 fps | 95.3% |
| Norma 202 | <<locked>> | 86% | 33,315 psi | 70% | 2520 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,656 psi | 49% | 1549 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,656 psi | 49% | 1562 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,975 psi | 50% | 1575 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 36,550 psi | 76% | 2543 fps | 95.2% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 35,389 psi | 74% | 2530 fps | 95.1% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 36,303 psi | 76% | 2559 fps | 95.5% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 38,928 psi | 81% | 2713 fps | 95.5% |
| Rottweil R 901 | <<locked>> | 86% | 34,925 psi | 73% | 2500 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 84% | 33,997 psi | 71% | 2490 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 82% | 32,634 psi | 68% | 2464 fps | 95.2% |
| Shooters World AR Plus | <<locked>> | 80% | 38,334 psi | 80% | 2589 fps | 96% |
| Shooters World AR Plus | <<locked>> | 80% | 39,407 psi | 82% | 2625 fps | 96.6% |
| Shooters World Match Rifle | <<locked>> | 92% | 36,027 psi | 75% | 2589 fps | 95.5% |
| Shooters World Match Rifle | <<locked>> | 90% | 35,186 psi | 74% | 2582 fps | 95.5% |
| Shooters World Match Rifle | <<locked>> | 88% | 33,562 psi | 70% | 2552 fps | 95.1% |
| Shooters World Precision | <<locked>> | 96% | 39,914 psi | 83% | 2644 fps | 95.1% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 35,810 psi | 75% | 2543 fps | 96% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 37,188 psi | 78% | 2589 fps | 96.8% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 37,695 psi | 79% | 2608 fps | 97.1% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 34,069 psi | 71% | 2480 fps | 97.6% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 35,302 psi | 74% | 2523 fps | 98.2% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 35,969 psi | 75% | 2546 fps | 98.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 34,200 psi | 71% | 2431 fps | 95.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 33,170 psi | 69% | 2421 fps | 95.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 31,734 psi | 66% | 2395 fps | 95.1% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 31,038 psi | 65% | 2375 fps | 95.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 30,008 psi | 63% | 2362 fps | 95.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 28,718 psi | 60% | 2336 fps | 95.1% |
| Somchem S321 | <<locked>> | 86% | 39,175 psi | 82% | 2641 fps | 95.2% |
| Somchem S335 | <<locked>> | 84% | 31,038 psi | 65% | 2379 fps | 95.5% |
| Somchem S335 | <<locked>> | 82% | 30,168 psi | 63% | 2369 fps | 95.4% |
| Somchem S335 | <<locked>> | 80% | 28,993 psi | 61% | 2346 fps | 95% |
| Vihtavuori N120 | <<locked>> | 80% | 40,306 psi | 84% | 2536 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 32,097 psi | 67% | 2392 fps | 98.5% |
| Vihtavuori N130 | <<locked>> | 80% | 33,228 psi | 69% | 2431 fps | 98.9% |
| Vihtavuori N130 | <<locked>> | 80% | 33,794 psi | 71% | 2451 fps | 99.1% |
| Vihtavuori N133 | <<locked>> | 80% | 27,833 psi | 58% | 2297 fps | 96% |
| Vihtavuori N133 | <<locked>> | 80% | 28,834 psi | 60% | 2336 fps | 96.7% |
| Vihtavuori N133 | <<locked>> | 80% | 29,341 psi | 61% | 2356 fps | 97.1% |
| Vihtavuori N135 | <<locked>> | 84% | 26,020 psi | 54% | 2326 fps | 95.6% |
| Vihtavuori N135 | <<locked>> | 82% | 25,353 psi | 53% | 2316 fps | 95.6% |
| Vihtavuori N135 | <<locked>> | 80% | 24,337 psi | 51% | 2290 fps | 95.1% |
| Vihtavuori N140 | <<locked>> | 88% | 31,604 psi | 66% | 2434 fps | 95.1% |
| Vihtavuori N140 | <<locked>> | 86% | 30,632 psi | 64% | 2425 fps | 95% |
| Vihtavuori N140 | <<locked>> | 86% | 31,415 psi | 66% | 2451 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 92% | 34,592 psi | 72% | 2520 fps | 95.6% |
| Vihtavuori N540 | <<locked>> | 90% | 33,692 psi | 70% | 2510 fps | 95.6% |
| Vihtavuori N540 | <<locked>> | 88% | 32,198 psi | 67% | 2480 fps | 95.1% |
| Winchester 748 | <<locked>> | 92% | 40,103 psi | 84% | 2674 fps | 95.7% |
| Winchester 748 | <<locked>> | 90% | 38,986 psi | 81% | 2664 fps | 95.6% |
| Winchester 748 | <<locked>> | 88% | 37,202 psi | 78% | 2635 fps | 95.2% |
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 122 powders for 6 x 52 R Bretschneider loaded with the .243 | 85gr | Barnes TSX BT. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,776 fps; across all powders the maximum-charge window runs from 1,693 fps to 2,776 fps. Accurate 2495 gives the best case fill at 100 %, and 122 of the 122 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (330 MPa), the top charges use 68–90 %, leaving at least 10 % headroom. The 85.0 gr projectile in 0.243" calls for a 1:9.5 twist; slower twists will usually not stabilise this weight. Accurate 2495, Accurate 4064, Accurate 4064 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. Alliant AR-Comp, IMR 3031, Accurate 2520 rank at the top here: for 6 x 52 R Bretschneider with the .243 | 85gr | Barnes TSX 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.