Load Specifications
Load data in caliber 6 x 52 R BB2 with .243 | 100gr | Norma FMJ bullet and 60 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>> | 86% | 41,742 psi | 87% | 2546 fps | 100% |
| Accurate 4064 | <<locked>> | 88% | 42,090 psi | 88% | 2582 fps | 99.9% |
| Accurate 4350 | <<locked>> | 98% | 43,163 psi | 90% | 2661 fps | 96.5% |
| ADI AR 2206H | <<locked>> | 82% | 40,828 psi | 85% | 2546 fps | 97.2% |
| ADI AR 2208 | <<locked>> | 88% | 41,771 psi | 87% | 2546 fps | 96.7% |
| ADI Benchmark 8208 | <<locked>> | 82% | 42,946 psi | 90% | 2562 fps | 98.7% |
| Alliant AR-Comp | <<locked>> | 82% | 42,018 psi | 88% | 2562 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 42,438 psi | 89% | 2674 fps | 96.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 40,988 psi | 86% | 2569 fps | 98.1% |
| Alliant Reloder-15 | <<locked>> | 86% | 41,481 psi | 87% | 2579 fps | 96.8% |
| Alliant Reloder-16 | <<locked>> | 98% | 43,207 psi | 90% | 2664 fps | 96.6% |
| Alliant Reloder-17 | <<locked>> | 92% | 40,828 psi | 85% | 2648 fps | 97.6% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 42,772 psi | 89% | 2598 fps | 96.5% |
| Bofors RP3 | <<locked>> | 88% | 40,596 psi | 85% | 2572 fps | 98.1% |
| Hodgdon BL-C2 | <<locked>> | 82% | 41,379 psi | 86% | 2579 fps | 98.9% |
| Hodgdon H4895 | <<locked>> | 82% | 41,162 psi | 86% | 2559 fps | 97.8% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 41,930 psi | 88% | 2602 fps | 97.9% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 42,250 psi | 88% | 2631 fps | 98.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,824 psi | 73% | 1673 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 42,380 psi | 89% | 2566 fps | 98% |
| IMR 3031 | <<locked>> | 84% | 42,714 psi | 89% | 2612 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 41,365 psi | 86% | 2533 fps | 96.8% |
| IMR 4831 | <<locked>> | 98% | 41,510 psi | 87% | 2612 fps | 96.2% |
| IMR 4895 | <<locked>> | 86% | 42,453 psi | 89% | 2612 fps | 97.7% |
| IMR 8208 XBR | <<locked>> | 82% | 42,946 psi | 90% | 2562 fps | 98.7% |
| Lovex D073.6 | <<locked>> | 84% | 42,032 psi | 88% | 2579 fps | 99.6% |
| Lovex S060 | <<locked>> | 82% | 41,626 psi | 87% | 2497 fps | 97.4% |
| Lovex S062 | <<locked>> | 86% | 41,162 psi | 86% | 2539 fps | 98.5% |
| Norma 201 | <<locked>> | 84% | 42,757 psi | 89% | 2556 fps | 98.7% |
| Norma 202 | <<locked>> | 84% | 42,714 psi | 89% | 2566 fps | 99.9% |
| Norma 203B | <<locked>> | 86% | 40,770 psi | 85% | 2569 fps | 97.2% |
| Norma URP | <<locked>> | 98% | 43,250 psi | 90% | 2654 fps | 96.4% |
| Ramshot Big Game | <<locked>> | 86% | 40,640 psi | 85% | 2582 fps | 96.9% |
| Ramshot Wild Boar | <<locked>> | 82% | 42,293 psi | 88% | 2582 fps | 97.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,085 psi | 73% | 1713 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 43,120 psi | 90% | 2674 fps | 97.2% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 40,785 psi | 85% | 2661 fps | 99.5% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 42,888 psi | 90% | 2674 fps | 96% |
| Rottweil R 902 | <<locked>> | 86% | 43,018 psi | 90% | 2556 fps | 98.7% |
| Rottweil R 903 | <<locked>> | 90% | 40,480 psi | 85% | 2562 fps | 97.8% |
| Shooters World Match Rifle | <<locked>> | 84% | 42,032 psi | 88% | 2579 fps | 99.6% |
| Shooters World Precision | <<locked>> | 86% | 41,162 psi | 86% | 2539 fps | 98.5% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 42,061 psi | 88% | 2618 fps | 97.4% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 42,148 psi | 88% | 2569 fps | 97.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 41,626 psi | 87% | 2470 fps | 99.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 41,408 psi | 87% | 2477 fps | 100% |
| Somchem S335 | <<locked>> | 82% | 41,133 psi | 86% | 2474 fps | 99.9% |
| Somchem S341 | <<locked>> | 82% | 40,770 psi | 85% | 2530 fps | 97% |
| Somchem S355 | <<locked>> | 90% | 41,597 psi | 87% | 2569 fps | 97.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 40,915 psi | 85% | 2654 fps | 98.9% |
| Vihtavuori N133 | <<locked>> | 82% | 41,684 psi | 87% | 2470 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 42,090 psi | 88% | 2546 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 43,047 psi | 90% | 2549 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 42,583 psi | 89% | 2562 fps | 99.1% |
| Vihtavuori N160 | <<locked>> | 96% | 42,728 psi | 89% | 2605 fps | 96.1% |
| Vihtavuori N530 | <<locked>> | 82% | 42,975 psi | 90% | 2556 fps | 98.8% |
| Vihtavuori N540 | <<locked>> | 86% | 41,394 psi | 86% | 2539 fps | 99.7% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 40,901 psi | 85% | 2539 fps | 97.7% |
| Winchester 748 | <<locked>> | 82% | 42,134 psi | 88% | 2598 fps | 99.2% |
| Winchester StaBALL Match | <<locked>> | 84% | 41,437 psi | 87% | 2572 fps | 97.9% |
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 2495 | <<locked>> | 80% | 34,374 psi | 72% | 2408 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 32,489 psi | 68% | 2388 fps | 98.7% |
| Accurate 4350 | <<locked>> | 96% | 40,045 psi | 84% | 2602 fps | 95.6% |
| ADI AR 2206H | <<locked>> | 80% | 38,537 psi | 81% | 2500 fps | 96.5% |
| ADI AR 2208 | <<locked>> | 84% | 37,202 psi | 78% | 2451 fps | 95.2% |
| ADI Benchmark 8208 | <<locked>> | 80% | 40,567 psi | 85% | 2516 fps | 98.2% |
| Alliant AR-Comp | <<locked>> | 80% | 39,363 psi | 82% | 2516 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 39,653 psi | 83% | 2612 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 31,618 psi | 66% | 2362 fps | 95.2% |
| Alliant Reloder-15 | <<locked>> | 82% | 36,521 psi | 76% | 2474 fps | 95.3% |
| Alliant Reloder-16 | <<locked>> | 96% | 40,799 psi | 85% | 2615 fps | 95.8% |
| Alliant Reloder-17 | 30.3 gr | 88% | 35,737 psi | 75% | 2530 fps | 95.9% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 40,001 psi | 84% | 2546 fps | 95.7% |
| Bofors RP3 | 26.5 gr | 80% | 30,893 psi | 65% | 2359 fps | 95.1% |
| Hodgdon BL-C2 | <<locked>> | 80% | 38,580 psi | 81% | 2526 fps | 98.4% |
| Hodgdon H4895 | <<locked>> | 80% | 38,812 psi | 81% | 2510 fps | 97.2% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 34,809 psi | 73% | 2454 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 34,461 psi | 72% | 2464 fps | 96.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,541 psi | 53% | 1486 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 37,333 psi | 78% | 2464 fps | 96.7% |
| IMR 3031 | <<locked>> | 80% | 37,652 psi | 79% | 2516 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 36,405 psi | 76% | 2428 fps | 95.3% |
| IMR 4831 | <<locked>> | 96% | 38,696 psi | 81% | 2556 fps | 95.3% |
| IMR 4895 | <<locked>> | 80% | 35,201 psi | 74% | 2457 fps | 95.6% |
| IMR 8208 XBR | <<locked>> | 80% | 40,567 psi | 85% | 2516 fps | 98.2% |
| Lovex D073.6 | <<locked>> | 80% | 36,883 psi | 77% | 2480 fps | 98.9% |
| Lovex S060 | <<locked>> | 80% | 38,957 psi | 81% | 2441 fps | 96.7% |
| Lovex S062 | <<locked>> | 80% | 33,808 psi | 71% | 2385 fps | 96.5% |
| Norma 201 | <<locked>> | 80% | 37,695 psi | 79% | 2457 fps | 97.7% |
| Norma 202 | <<locked>> | 80% | 37,536 psi | 78% | 2467 fps | 99.4% |
| Norma 203B | <<locked>> | 80% | 33,837 psi | 71% | 2418 fps | 95% |
| Norma URP | <<locked>> | 96% | 40,741 psi | 85% | 2605 fps | 95.6% |
| Ramshot Big Game | <<locked>> | 82% | 35,534 psi | 74% | 2474 fps | 95.2% |
| Ramshot Wild Boar | <<locked>> | 80% | 39,523 psi | 83% | 2526 fps | 96.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,875 psi | 54% | 1526 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 37,811 psi | 79% | 2566 fps | 95.7% |
| ReloadSwiss RS 60 | 27.5 gr | 80% | 29,211 psi | 61% | 2365 fps | 95.5% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 40,074 psi | 84% | 2618 fps | 95.1% |
| Rottweil R 902 | <<locked>> | 80% | 35,752 psi | 75% | 2408 fps | 97.1% |
| Rottweil R 903 | <<locked>> | 84% | 33,417 psi | 70% | 2411 fps | 95.7% |
| Shooters World Match Rifle | <<locked>> | 80% | 36,883 psi | 77% | 2480 fps | 98.9% |
| Shooters World Precision | <<locked>> | 80% | 33,808 psi | 71% | 2385 fps | 96.5% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 34,737 psi | 73% | 2461 fps | 95% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 36,869 psi | 77% | 2461 fps | 96% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 39,189 psi | 82% | 2425 fps | 99.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 32,155 psi | 67% | 2293 fps | 99% |
| Somchem S335 | <<locked>> | 80% | 38,827 psi | 81% | 2431 fps | 99.8% |
| Somchem S341 | <<locked>> | 80% | 38,087 psi | 80% | 2477 fps | 96.3% |
| Somchem S355 | <<locked>> | 84% | 34,563 psi | 72% | 2425 fps | 95.8% |
| Somchem S365 | <<locked>> | 90% | 29,994 psi | 63% | 2392 fps | 95.2% |
| Vihtavuori N133 | <<locked>> | 80% | 39,276 psi | 82% | 2428 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 34,563 psi | 72% | 2405 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 35,679 psi | 75% | 2411 fps | 99.3% |
| Vihtavuori N150 | <<locked>> | 80% | 28,805 psi | 60% | 2264 fps | 95.2% |
| Vihtavuori N160 | <<locked>> | 94% | 40,292 psi | 84% | 2559 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 80% | 40,103 psi | 84% | 2503 fps | 98.2% |
| Vihtavuori N540 | <<locked>> | 80% | 34,127 psi | 71% | 2392 fps | 98.6% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 33,707 psi | 70% | 2385 fps | 95.2% |
| Winchester 748 | <<locked>> | 80% | 39,276 psi | 82% | 2546 fps | 98.8% |
| Winchester StaBALL Match | <<locked>> | 80% | 36,100 psi | 75% | 2464 fps | 96.5% |
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 60 powders for 6 x 52 R BB2 loaded with the .243 | 100gr | Norma FMJ. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,674 fps; across all powders the maximum-charge window runs from 1,673 fps to 2,674 fps. Hodgdon Hybrid 100V gives the best case fill at 100 %, and 60 of the 60 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 100.0 gr projectile in 0.243" calls for a 1:10.5 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, Bofors RP3 rank at the top here: for 6 x 52 R BB2 with the .243 | 100gr | Norma FMJ 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.