Load Specifications
Load data in caliber 6 x 52 R BB2 with .243 | 100gr | Hornady SP bullet and 58 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% | 40,785 psi | 85% | 2523 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 42,322 psi | 88% | 2566 fps | 99.6% |
| Accurate 4064 | <<locked>> | 88% | 40,770 psi | 85% | 2552 fps | 99.8% |
| Accurate 4350 | <<locked>> | 98% | 41,553 psi | 87% | 2621 fps | 95.9% |
| ADI AR 2206H | <<locked>> | 84% | 42,453 psi | 89% | 2569 fps | 97.4% |
| ADI AR 2208 | <<locked>> | 88% | 41,075 psi | 86% | 2523 fps | 96.3% |
| ADI Benchmark 8208 | <<locked>> | 82% | 42,119 psi | 88% | 2536 fps | 98.4% |
| Alliant AR-Comp | <<locked>> | 82% | 40,901 psi | 85% | 2539 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 42,685 psi | 89% | 2592 fps | 98.3% |
| Alliant Reloder-15 | <<locked>> | 88% | 43,221 psi | 90% | 2602 fps | 97.1% |
| Alliant Reloder-16 | <<locked>> | 98% | 42,308 psi | 88% | 2635 fps | 96% |
| Alliant Reloder-17 | <<locked>> | 94% | 42,409 psi | 89% | 2671 fps | 97.9% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 41,727 psi | 87% | 2569 fps | 96% |
| Bofors RP3 | <<locked>> | 90% | 42,366 psi | 89% | 2598 fps | 98.4% |
| Hodgdon BL-C2 | <<locked>> | 84% | 43,120 psi | 90% | 2602 fps | 99.1% |
| Hodgdon H4895 | <<locked>> | 84% | 42,801 psi | 89% | 2582 fps | 98% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 41,031 psi | 86% | 2575 fps | 97.4% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 41,133 psi | 86% | 2598 fps | 98.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,534 psi | 72% | 1657 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 41,191 psi | 86% | 2533 fps | 97.6% |
| IMR 3031 | <<locked>> | 84% | 41,713 psi | 87% | 2585 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 43,091 psi | 90% | 2556 fps | 97.1% |
| IMR 4831ᴾ | <<locked>> | 100% | 42,612 psi | 89% | 2625 fps | 96.3% |
| IMR 4895 | <<locked>> | 86% | 41,684 psi | 87% | 2585 fps | 97.3% |
| IMR 8208 XBR | <<locked>> | 82% | 42,119 psi | 88% | 2536 fps | 98.4% |
| Lovex D073.6 | <<locked>> | 84% | 40,785 psi | 85% | 2549 fps | 99.4% |
| Lovex S060 | <<locked>> | 84% | 43,308 psi | 90% | 2516 fps | 97.6% |
| Lovex S062 | <<locked>> | 88% | 42,395 psi | 89% | 2556 fps | 98.6% |
| Norma 201 | <<locked>> | 84% | 41,539 psi | 87% | 2526 fps | 98.4% |
| Norma 202 | <<locked>> | 84% | 41,858 psi | 87% | 2543 fps | 99.8% |
| Norma 203B | <<locked>> | 88% | 42,496 psi | 89% | 2592 fps | 97.5% |
| Ramshot Big Game | <<locked>> | 88% | 42,018 psi | 88% | 2602 fps | 97.1% |
| Ramshot Wild Boar | <<locked>> | 82% | 41,133 psi | 86% | 2549 fps | 97% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,780 psi | 73% | 1696 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 42,322 psi | 88% | 2651 fps | 96.9% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 42,279 psi | 88% | 2680 fps | 99.6% |
| Rottweil R 901 | <<locked>> | 82% | 43,120 psi | 90% | 2533 fps | 99.7% |
| Rottweil R 902 | <<locked>> | 86% | 42,221 psi | 88% | 2530 fps | 98.5% |
| Rottweil R 903 | <<locked>> | 92% | 42,235 psi | 88% | 2589 fps | 98.1% |
| Shooters World Match Rifle | <<locked>> | 84% | 40,785 psi | 85% | 2549 fps | 99.4% |
| Shooters World Precision | <<locked>> | 88% | 42,395 psi | 89% | 2556 fps | 98.6% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 41,031 psi | 86% | 2589 fps | 97% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 41,060 psi | 86% | 2539 fps | 97% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 40,741 psi | 85% | 2444 fps | 99.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 43,192 psi | 90% | 2497 fps | 100% |
| Somchem S335 | <<locked>> | 84% | 42,757 psi | 89% | 2493 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 42,525 psi | 89% | 2556 fps | 97.3% |
| Somchem S355 | <<locked>> | 92% | 42,960 psi | 90% | 2589 fps | 98% |
| Somchem S365ᴾ | <<locked>> | 100% | 40,074 psi | 84% | 2625 fps | 98.6% |
| Vihtavuori N133 | <<locked>> | 82% | 40,785 psi | 85% | 2448 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 41,118 psi | 86% | 2520 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 42,264 psi | 88% | 2530 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 92% | 41,510 psi | 87% | 2533 fps | 98.8% |
| Vihtavuori N530 | <<locked>> | 82% | 42,177 psi | 88% | 2533 fps | 98.5% |
| Vihtavuori N540 | <<locked>> | 88% | 43,192 psi | 90% | 2562 fps | 99.8% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 42,627 psi | 89% | 2562 fps | 97.9% |
| Winchester 748 | <<locked>> | 82% | 40,901 psi | 85% | 2569 fps | 98.9% |
| Winchester StaBALL Match | <<locked>> | 86% | 43,236 psi | 90% | 2598 fps | 98.1% |
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 2495 | <<locked>> | 80% | 33,388 psi | 70% | 2382 fps | 99.9% |
| Accurate 2520 | <<locked>> | 80% | 39,407 psi | 82% | 2513 fps | 99.2% |
| Accurate 4064 | <<locked>> | 80% | 31,589 psi | 66% | 2359 fps | 98.4% |
| Accurate 4350 | <<locked>> | 96% | 38,870 psi | 81% | 2572 fps | 95.1% |
| ADI AR 2206H | <<locked>> | 80% | 37,347 psi | 78% | 2464 fps | 96% |
| ADI AR 2208 | <<locked>> | 86% | 38,305 psi | 80% | 2467 fps | 95.4% |
| ADI Benchmark 8208 | <<locked>> | 80% | 39,334 psi | 82% | 2480 fps | 97.8% |
| Alliant AR-Comp | <<locked>> | 80% | 38,276 psi | 80% | 2493 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 32,793 psi | 69% | 2385 fps | 95.5% |
| Alliant Reloder-15 | <<locked>> | 84% | 37,971 psi | 79% | 2497 fps | 95.6% |
| Alliant Reloder-16 | <<locked>> | 96% | 39,900 psi | 83% | 2582 fps | 95.2% |
| Alliant Reloder-17 | 29.6 gr | 88% | 34,896 psi | 73% | 2500 fps | 95.3% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 38,928 psi | 81% | 2513 fps | 95.2% |
| Bofors RP3 | 26.6 gr | 82% | 32,372 psi | 68% | 2388 fps | 95.5% |
| Hodgdon BL-C2 | <<locked>> | 80% | 37,434 psi | 78% | 2493 fps | 98% |
| Hodgdon H4895 | <<locked>> | 80% | 37,594 psi | 79% | 2477 fps | 96.7% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 33,910 psi | 71% | 2421 fps | 95% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 33,794 psi | 71% | 2438 fps | 95.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,483 psi | 53% | 1476 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 36,535 psi | 76% | 2438 fps | 96.3% |
| IMR 3031 | <<locked>> | 80% | 36,637 psi | 77% | 2490 fps | 99.9% |
| IMR 4064 | <<locked>> | 84% | 37,840 psi | 79% | 2451 fps | 95.6% |
| IMR 4831 | <<locked>> | 98% | 40,103 psi | 84% | 2575 fps | 95.5% |
| IMR 4895 | <<locked>> | 82% | 36,593 psi | 76% | 2480 fps | 95.9% |
| IMR 8208 XBR | <<locked>> | 80% | 39,334 psi | 82% | 2480 fps | 97.8% |
| Lovex D073.6 | <<locked>> | 80% | 35,665 psi | 75% | 2448 fps | 98.5% |
| Lovex S060 | <<locked>> | 80% | 38,159 psi | 80% | 2415 fps | 96.2% |
| Lovex S062 | <<locked>> | 80% | 33,011 psi | 69% | 2359 fps | 96.1% |
| Norma 201 | <<locked>> | 80% | 36,869 psi | 77% | 2431 fps | 97.3% |
| Norma 202 | <<locked>> | 80% | 36,695 psi | 77% | 2444 fps | 99.1% |
| Norma 203B | <<locked>> | 82% | 35,114 psi | 73% | 2438 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 84% | 36,999 psi | 77% | 2497 fps | 95.6% |
| Ramshot Wild Boar | <<locked>> | 80% | 38,421 psi | 80% | 2493 fps | 96.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,788 psi | 54% | 1516 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 36,651 psi | 77% | 2533 fps | 95.1% |
| ReloadSwiss RS 60 | 27.6 gr | 82% | 30,676 psi | 64% | 2398 fps | 96.1% |
| Rottweil R 901 | <<locked>> | 80% | 40,669 psi | 85% | 2487 fps | 99.5% |
| Rottweil R 902 | <<locked>> | 80% | 34,911 psi | 73% | 2382 fps | 96.7% |
| Rottweil R 903 | <<locked>> | 84% | 32,256 psi | 67% | 2379 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 35,665 psi | 75% | 2448 fps | 98.5% |
| Shooters World Precision | <<locked>> | 80% | 33,011 psi | 69% | 2359 fps | 96.1% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 36,172 psi | 76% | 2484 fps | 95.4% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 36,143 psi | 76% | 2434 fps | 95.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 38,261 psi | 80% | 2398 fps | 99.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 31,386 psi | 66% | 2267 fps | 98.8% |
| Somchem S335 | <<locked>> | 80% | 38,000 psi | 79% | 2408 fps | 99.7% |
| Somchem S341 | <<locked>> | 80% | 37,043 psi | 77% | 2448 fps | 95.7% |
| Somchem S355 | <<locked>> | 84% | 33,417 psi | 70% | 2388 fps | 95.2% |
| Somchem S365 | <<locked>> | 92% | 30,951 psi | 65% | 2408 fps | 95.4% |
| Vihtavuori N133 | <<locked>> | 80% | 38,334 psi | 80% | 2405 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 33,605 psi | 70% | 2379 fps | 99.9% |
| Vihtavuori N140 | <<locked>> | 80% | 34,882 psi | 73% | 2385 fps | 99.1% |
| Vihtavuori N150 | <<locked>> | 82% | 29,878 psi | 62% | 2287 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 80% | 39,291 psi | 82% | 2477 fps | 97.9% |
| Vihtavuori N540 | <<locked>> | 80% | 33,388 psi | 70% | 2369 fps | 98.3% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 34,940 psi | 73% | 2402 fps | 95.4% |
| Winchester 748 | <<locked>> | 80% | 38,072 psi | 80% | 2513 fps | 98.4% |
| Winchester StaBALL Match | <<locked>> | 80% | 35,027 psi | 73% | 2431 fps | 95.9% |
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 58 powders for 6 x 52 R BB2 loaded with the .243 | 100gr | Hornady SP. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,680 fps; across all powders the maximum-charge window runs from 1,657 fps to 2,680 fps. Hodgdon Hybrid 100V gives the best case fill at 100 %, and 58 of the 58 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (330 MPa), the top charges use 72–90 %, leaving at least 10 % headroom. The 100.0 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, IMR 4831 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 | Hornady SP 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.