Load Specifications
Load data in caliber 6 x 52 R BB2 with .243 | 95gr | Berger Classic Hybrid Hunter 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 Norma 203B.
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% | 42,467 psi | 89% | 2566 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 41,785 psi | 87% | 2608 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 41,191 psi | 86% | 2612 fps | 99.2% |
| Accurate 4064 | <<locked>> | 90% | 42,076 psi | 88% | 2644 fps | 99.8% |
| ADI AR 2206H | <<locked>> | 84% | 41,524 psi | 87% | 2615 fps | 96.7% |
| ADI AR 2208 | <<locked>> | 90% | 42,192 psi | 88% | 2608 fps | 96% |
| ADI Benchmark 8208 | <<locked>> | 82% | 40,872 psi | 85% | 2575 fps | 97.7% |
| Alliant AR-Comp | <<locked>> | 84% | 42,554 psi | 89% | 2638 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 41,176 psi | 86% | 2628 fps | 97.6% |
| Alliant Reloder-15 | <<locked>> | 88% | 42,119 psi | 88% | 2648 fps | 96.3% |
| Alliant Reloder-17 | <<locked>> | 94% | 41,162 psi | 86% | 2703 fps | 96.9% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 43,047 psi | 90% | 2661 fps | 95.8% |
| Bofors RP3 | <<locked>> | 90% | 40,698 psi | 85% | 2631 fps | 97.6% |
| Hodgdon Benchmark | <<locked>> | 82% | 43,091 psi | 90% | 2579 fps | 98.7% |
| Hodgdon BL-C2 | <<locked>> | 84% | 41,524 psi | 87% | 2641 fps | 98.5% |
| Hodgdon CFE223 | <<locked>> | 82% | 42,714 psi | 89% | 2713 fps | 96.4% |
| Hodgdon H4895 | <<locked>> | 84% | 41,814 psi | 87% | 2628 fps | 97.3% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 39,827 psi | 83% | 2612 fps | 96.6% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 42,453 psi | 89% | 2690 fps | 98% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,185 psi | 71% | 1699 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 42,772 psi | 89% | 2631 fps | 97.5% |
| IMR 3031 | <<locked>> | 84% | 40,205 psi | 84% | 2628 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 41,756 psi | 87% | 2592 fps | 96.2% |
| IMR 4895 | <<locked>> | 88% | 43,120 psi | 90% | 2680 fps | 97.2% |
| IMR 8208 XBR | <<locked>> | 82% | 40,872 psi | 85% | 2575 fps | 97.7% |
| Lovex D073.6 | <<locked>> | 86% | 42,554 psi | 89% | 2648 fps | 99.4% |
| Lovex S060 | <<locked>> | 84% | 42,148 psi | 88% | 2559 fps | 96.8% |
| Lovex S062 | <<locked>> | 88% | 41,408 psi | 87% | 2602 fps | 98% |
| Norma 201 | <<locked>> | 86% | 43,134 psi | 90% | 2621 fps | 98.3% |
| Norma 202 | <<locked>> | 84% | 40,509 psi | 85% | 2585 fps | 99.4% |
| Norma 203B | <<locked>> | 88% | 41,394 psi | 86% | 2635 fps | 96.7% |
| Ramshot Big Game | <<locked>> | 88% | 40,857 psi | 85% | 2641 fps | 96.3% |
| Ramshot Wild Boar | <<locked>> | 84% | 42,569 psi | 89% | 2641 fps | 96.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,374 psi | 72% | 1739 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 41,104 psi | 86% | 2720 fps | 99.1% |
| Rottweil R 901 | <<locked>> | 82% | 41,930 psi | 88% | 2579 fps | 99.4% |
| Rottweil R 902 | <<locked>> | 86% | 40,901 psi | 85% | 2569 fps | 97.8% |
| Rottweil R 903 | <<locked>> | 92% | 40,567 psi | 85% | 2621 fps | 97.2% |
| Shooters World Match Rifle | <<locked>> | 86% | 42,554 psi | 89% | 2648 fps | 99.4% |
| Shooters World Precision | <<locked>> | 88% | 41,408 psi | 87% | 2602 fps | 98% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 42,308 psi | 88% | 2677 fps | 96.8% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 42,438 psi | 89% | 2631 fps | 96.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 42,525 psi | 89% | 2543 fps | 99.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 41,800 psi | 87% | 2539 fps | 99.9% |
| Somchem S335 | <<locked>> | 84% | 41,872 psi | 87% | 2546 fps | 99.9% |
| Somchem S341 | <<locked>> | 84% | 41,002 psi | 86% | 2592 fps | 96.4% |
| Somchem S355 | <<locked>> | 92% | 41,785 psi | 87% | 2631 fps | 97.3% |
| Somchem S365ᴾ | <<locked>> | 100% | 38,769 psi | 81% | 2661 fps | 97.8% |
| Vihtavuori N133 | <<locked>> | 84% | 42,525 psi | 89% | 2546 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 42,235 psi | 88% | 2612 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 40,843 psi | 85% | 2569 fps | 99.6% |
| Vihtavuori N150 | <<locked>> | 94% | 42,888 psi | 90% | 2621 fps | 98.7% |
| Vihtavuori N530 | <<locked>> | 82% | 40,857 psi | 85% | 2572 fps | 97.8% |
| Vihtavuori N540 | <<locked>> | 88% | 42,105 psi | 88% | 2608 fps | 99.6% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 41,394 psi | 86% | 2598 fps | 97% |
| Winchester 748 | <<locked>> | 84% | 42,322 psi | 88% | 2664 fps | 98.9% |
| Winchester StaBALL Match | <<locked>> | 86% | 41,626 psi | 87% | 2631 fps | 97.3% |
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% | 39,581 psi | 83% | 2516 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 32,184 psi | 67% | 2418 fps | 99.7% |
| Accurate 2520 | <<locked>> | 80% | 38,363 psi | 80% | 2559 fps | 98.7% |
| Accurate 4064 | <<locked>> | 80% | 30,458 psi | 64% | 2395 fps | 97.6% |
| ADI AR 2206H | <<locked>> | 80% | 36,564 psi | 76% | 2510 fps | 95.1% |
| ADI AR 2208 | <<locked>> | 88% | 39,769 psi | 83% | 2559 fps | 95.3% |
| ADI Benchmark 8208 | <<locked>> | 80% | 38,566 psi | 81% | 2530 fps | 97.2% |
| Alliant AR-Comp | <<locked>> | 80% | 36,956 psi | 77% | 2539 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 33,968 psi | 71% | 2474 fps | 95.4% |
| Alliant Reloder-15 | <<locked>> | 86% | 39,320 psi | 82% | 2589 fps | 95.4% |
| Alliant Reloder-17 | 30.6 gr | 90% | 35,998 psi | 75% | 2585 fps | 95% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 40,248 psi | 84% | 2605 fps | 95% |
| Bofors RP3 | <<locked>> | 84% | 33,489 psi | 70% | 2477 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 40,683 psi | 85% | 2533 fps | 98.2% |
| Hodgdon BL-C2 | <<locked>> | 80% | 36,492 psi | 76% | 2539 fps | 97.3% |
| Hodgdon CFE223 | <<locked>> | 80% | 39,856 psi | 83% | 2654 fps | 95.5% |
| Hodgdon H4895 | <<locked>> | 80% | 36,796 psi | 77% | 2520 fps | 95.9% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 37,507 psi | 78% | 2562 fps | 95.8% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 34,954 psi | 73% | 2526 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,280 psi | 53% | 1519 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 35,447 psi | 74% | 2474 fps | 95.3% |
| IMR 3031 | <<locked>> | 80% | 35,389 psi | 74% | 2533 fps | 99.7% |
| IMR 4064 | <<locked>> | 86% | 39,349 psi | 82% | 2546 fps | 95.5% |
| IMR 4895 | <<locked>> | 84% | 37,869 psi | 79% | 2572 fps | 95.7% |
| IMR 8208 XBR | <<locked>> | 80% | 38,566 psi | 81% | 2530 fps | 97.2% |
| Lovex D073.6 | <<locked>> | 80% | 34,722 psi | 73% | 2490 fps | 97.8% |
| Lovex S060 | <<locked>> | 80% | 37,521 psi | 78% | 2464 fps | 95.5% |
| Lovex S062 | <<locked>> | 80% | 32,300 psi | 67% | 2402 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 35,752 psi | 75% | 2467 fps | 96.4% |
| Norma 202 | <<locked>> | 80% | 35,549 psi | 74% | 2484 fps | 98.6% |
| Norma 203B | 27.3 gr | 84% | 36,376 psi | 76% | 2530 fps | 95.1% |
| Ramshot Big Game | <<locked>> | 86% | 38,232 psi | 80% | 2585 fps | 95.4% |
| Ramshot Wild Boar | <<locked>> | 80% | 37,130 psi | 78% | 2530 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,570 psi | 53% | 1558 fps | 100% |
| ReloadSwiss RS 60 | 28.6 gr | 84% | 31,705 psi | 66% | 2484 fps | 95.9% |
| Rottweil R 901 | <<locked>> | 80% | 39,508 psi | 83% | 2533 fps | 99.1% |
| Rottweil R 902 | <<locked>> | 80% | 33,895 psi | 71% | 2418 fps | 95.8% |
| Rottweil R 903 | <<locked>> | 88% | 35,534 psi | 74% | 2516 fps | 95.7% |
| Shooters World Match Rifle | <<locked>> | 80% | 34,722 psi | 73% | 2490 fps | 97.8% |
| Shooters World Precision | <<locked>> | 80% | 32,300 psi | 67% | 2402 fps | 95.2% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 37,333 psi | 78% | 2572 fps | 95.2% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 37,420 psi | 78% | 2526 fps | 95.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 37,637 psi | 79% | 2451 fps | 98.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 30,763 psi | 64% | 2313 fps | 98.2% |
| Somchem S335 | <<locked>> | 80% | 36,956 psi | 77% | 2451 fps | 99.3% |
| Somchem S341 | <<locked>> | 82% | 38,276 psi | 80% | 2536 fps | 95.6% |
| Somchem S355 | <<locked>> | 86% | 34,650 psi | 72% | 2480 fps | 95.1% |
| Somchem S365 | <<locked>> | 94% | 31,894 psi | 67% | 2490 fps | 95.2% |
| Vihtavuori N133 | <<locked>> | 80% | 37,681 psi | 79% | 2457 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 32,851 psi | 69% | 2428 fps | 99.7% |
| Vihtavuori N140 | <<locked>> | 80% | 33,779 psi | 71% | 2425 fps | 98.5% |
| Vihtavuori N150 | <<locked>> | 84% | 30,995 psi | 65% | 2372 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 80% | 38,072 psi | 80% | 2516 fps | 97.1% |
| Vihtavuori N540 | <<locked>> | 80% | 32,300 psi | 67% | 2405 fps | 97.6% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 36,289 psi | 76% | 2490 fps | 95.3% |
| Winchester 748 | <<locked>> | 80% | 37,115 psi | 78% | 2556 fps | 97.7% |
| Winchester StaBALL Match | <<locked>> | 80% | 34,171 psi | 71% | 2474 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 | Berger Classic Hybrid Hunter. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,720 fps; across all powders the maximum-charge window runs from 1,699 fps to 2,720 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, Norma 203B rank at the top here: for 6 x 52 R BB2 with the .243 | 95gr | Berger Classic Hybrid Hunter 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.