Load Specifications
Load data in caliber 6 x 52 R BB2 with .243 | 100gr | Hornady InterLock RN 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 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% | 42,830 psi | 89% | 2569 fps | 100% |
| Accurate 4064 | <<locked>> | 88% | 43,192 psi | 90% | 2608 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 41,321 psi | 86% | 2635 fps | 96.2% |
| ADI AR 2206H | <<locked>> | 82% | 41,800 psi | 87% | 2572 fps | 97.5% |
| ADI AR 2208 | <<locked>> | 88% | 42,641 psi | 89% | 2572 fps | 97% |
| Alliant AR-Comp | <<locked>> | 82% | 43,207 psi | 90% | 2585 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 43,207 psi | 90% | 2700 fps | 97% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 41,887 psi | 88% | 2592 fps | 98.4% |
| Alliant Reloder-15 | <<locked>> | 86% | 42,438 psi | 89% | 2605 fps | 97.2% |
| Alliant Reloder-16 | <<locked>> | 96% | 41,495 psi | 87% | 2638 fps | 96.2% |
| Alliant Reloder-17 | <<locked>> | 92% | 41,524 psi | 87% | 2674 fps | 98% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 40,843 psi | 85% | 2569 fps | 96.2% |
| Bofors RP3 | <<locked>> | 88% | 41,524 psi | 87% | 2598 fps | 98.5% |
| Hodgdon BL-C2 | <<locked>> | 82% | 42,264 psi | 88% | 2602 fps | 99.1% |
| Hodgdon H380 | <<locked>> | 88% | 42,743 psi | 89% | 2598 fps | 95.9% |
| Hodgdon H4895 | <<locked>> | 82% | 42,119 psi | 88% | 2585 fps | 98.1% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 43,062 psi | 90% | 2631 fps | 98.3% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 43,149 psi | 90% | 2654 fps | 98.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,780 psi | 73% | 1680 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 43,294 psi | 90% | 2592 fps | 98.3% |
| IMR 3031 | <<locked>> | 82% | 41,292 psi | 86% | 2592 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 42,264 psi | 88% | 2559 fps | 97.2% |
| IMR 4831 | <<locked>> | 98% | 42,293 psi | 88% | 2635 fps | 96.6% |
| IMR 4895 | <<locked>> | 84% | 40,973 psi | 86% | 2589 fps | 97.5% |
| Lovex D073.6 | <<locked>> | 84% | 43,047 psi | 90% | 2602 fps | 99.7% |
| Lovex S060 | <<locked>> | 82% | 42,177 psi | 88% | 2513 fps | 97.6% |
| Lovex S062 | <<locked>> | 86% | 41,684 psi | 87% | 2556 fps | 98.7% |
| Norma 201 | <<locked>> | 82% | 40,973 psi | 86% | 2530 fps | 98.5% |
| Norma 202 | <<locked>> | 82% | 40,857 psi | 85% | 2539 fps | 99.8% |
| Norma 203B | <<locked>> | 86% | 41,684 psi | 87% | 2595 fps | 97.6% |
| Norma URP | <<locked>> | 96% | 41,495 psi | 87% | 2631 fps | 96.1% |
| Ramshot Big Game | <<locked>> | 86% | 41,423 psi | 87% | 2608 fps | 97.3% |
| Ramshot Wild Boar | <<locked>> | 82% | 43,120 psi | 90% | 2605 fps | 97.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,027 psi | 73% | 1719 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 41,582 psi | 87% | 2654 fps | 97% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 41,452 psi | 87% | 2684 fps | 99.7% |
| Rottweil R 902 | <<locked>> | 84% | 41,162 psi | 86% | 2526 fps | 98.5% |
| Rottweil R 903 | <<locked>> | 90% | 41,408 psi | 87% | 2589 fps | 98.2% |
| Shooters World Match Rifle | <<locked>> | 84% | 43,047 psi | 90% | 2602 fps | 99.7% |
| Shooters World Precision | <<locked>> | 86% | 41,684 psi | 87% | 2556 fps | 98.7% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 43,250 psi | 90% | 2648 fps | 97.8% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 43,062 psi | 90% | 2592 fps | 97.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 42,627 psi | 89% | 2497 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 42,322 psi | 88% | 2500 fps | 100% |
| Somchem S335 | <<locked>> | 82% | 42,090 psi | 88% | 2500 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 41,626 psi | 87% | 2556 fps | 97.4% |
| Somchem S355 | <<locked>> | 90% | 42,525 psi | 89% | 2595 fps | 98.2% |
| Somchem S365ᴾ | <<locked>> | 100% | 42,003 psi | 88% | 2684 fps | 99.2% |
| Vihtavuori N133 | <<locked>> | 82% | 42,743 psi | 89% | 2497 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 43,192 psi | 90% | 2569 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 41,539 psi | 87% | 2530 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 90% | 40,567 psi | 85% | 2533 fps | 98.9% |
| Vihtavuori N540 | <<locked>> | 86% | 42,656 psi | 89% | 2569 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 96% | 43,018 psi | 90% | 2638 fps | 96.2% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 41,742 psi | 87% | 2569 fps | 98.1% |
| Winchester 748 | <<locked>> | 82% | 43,105 psi | 90% | 2625 fps | 99.4% |
| Winchester StaBALL Match | <<locked>> | 84% | 42,293 psi | 88% | 2595 fps | 98.2% |
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% | 35,070 psi | 73% | 2428 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 33,127 psi | 69% | 2408 fps | 99% |
| Accurate 4350 | <<locked>> | 94% | 38,406 psi | 80% | 2575 fps | 95.3% |
| ADI AR 2206H | <<locked>> | 80% | 39,088 psi | 82% | 2516 fps | 96.8% |
| ADI AR 2208 | <<locked>> | 84% | 37,695 psi | 79% | 2470 fps | 95.6% |
| Alliant AR-Comp | <<locked>> | 80% | 40,205 psi | 84% | 2536 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 37,855 psi | 79% | 2579 fps | 95.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 32,547 psi | 68% | 2392 fps | 95.8% |
| Alliant Reloder-15 | <<locked>> | 82% | 37,434 psi | 78% | 2503 fps | 95.8% |
| Alliant Reloder-16 | <<locked>> | 94% | 39,233 psi | 82% | 2589 fps | 95.4% |
| Alliant Reloder-17 | 30.2 gr | 86% | 34,127 psi | 71% | 2500 fps | 95.4% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 38,203 psi | 80% | 2516 fps | 95.3% |
| Bofors RP3 | 27.1 gr | 80% | 31,792 psi | 66% | 2388 fps | 95.6% |
| Hodgdon BL-C2 | <<locked>> | 80% | 39,508 psi | 83% | 2549 fps | 98.7% |
| Hodgdon H380 | <<locked>> | 86% | 40,350 psi | 84% | 2552 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 39,407 psi | 82% | 2530 fps | 97.5% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 33,489 psi | 70% | 2431 fps | 95.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 35,331 psi | 74% | 2490 fps | 96.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,672 psi | 54% | 1499 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 37,869 psi | 79% | 2484 fps | 97% |
| IMR 3031 | <<locked>> | 80% | 38,392 psi | 80% | 2536 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 37,333 psi | 78% | 2457 fps | 95.8% |
| IMR 4831 | <<locked>> | 94% | 37,246 psi | 78% | 2533 fps | 95% |
| IMR 4895 | <<locked>> | 80% | 35,824 psi | 75% | 2477 fps | 95.9% |
| Lovex D073.6 | <<locked>> | 80% | 37,521 psi | 78% | 2500 fps | 99.1% |
| Lovex S060 | <<locked>> | 80% | 39,871 psi | 83% | 2467 fps | 97.1% |
| Lovex S062 | <<locked>> | 80% | 34,737 psi | 73% | 2415 fps | 97% |
| Norma 201 | <<locked>> | 80% | 38,276 psi | 80% | 2477 fps | 97.9% |
| Norma 202 | <<locked>> | 80% | 38,551 psi | 81% | 2497 fps | 99.6% |
| Norma 203B | <<locked>> | 80% | 34,403 psi | 72% | 2438 fps | 95.4% |
| Norma URP | <<locked>> | 94% | 39,160 psi | 82% | 2582 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 82% | 36,332 psi | 76% | 2500 fps | 95.7% |
| Ramshot Wild Boar | <<locked>> | 80% | 40,393 psi | 84% | 2552 fps | 97.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,005 psi | 54% | 1535 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 36,187 psi | 76% | 2536 fps | 95.3% |
| ReloadSwiss RS 60 | 28.1 gr | 80% | 29,892 psi | 62% | 2395 fps | 96.1% |
| Rottweil R 902 | <<locked>> | 80% | 36,695 psi | 77% | 2434 fps | 97.5% |
| Rottweil R 903 | <<locked>> | 82% | 32,024 psi | 67% | 2385 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 37,521 psi | 78% | 2500 fps | 99.1% |
| Shooters World Precision | <<locked>> | 80% | 34,737 psi | 73% | 2415 fps | 97% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 35,491 psi | 74% | 2487 fps | 95.5% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 37,724 psi | 79% | 2487 fps | 96.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 40,205 psi | 84% | 2451 fps | 99.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 33,040 psi | 69% | 2320 fps | 99.3% |
| Somchem S335 | <<locked>> | 80% | 39,436 psi | 82% | 2451 fps | 99.9% |
| Somchem S341 | <<locked>> | 80% | 38,928 psi | 81% | 2503 fps | 96.7% |
| Somchem S355 | <<locked>> | 82% | 33,127 psi | 69% | 2395 fps | 95.5% |
| Somchem S365 | <<locked>> | 90% | 30,647 psi | 64% | 2418 fps | 95.7% |
| Vihtavuori N133 | <<locked>> | 80% | 40,306 psi | 84% | 2454 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 35,650 psi | 74% | 2431 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 36,274 psi | 76% | 2431 fps | 99.5% |
| Vihtavuori N150 | <<locked>> | 80% | 29,327 psi | 61% | 2283 fps | 95.6% |
| Vihtavuori N540 | <<locked>> | 80% | 34,998 psi | 73% | 2418 fps | 98.9% |
| Vihtavuori N550 | <<locked>> | 94% | 40,219 psi | 84% | 2582 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 34,229 psi | 72% | 2405 fps | 95.7% |
| Winchester 748 | <<locked>> | 80% | 40,263 psi | 84% | 2572 fps | 99% |
| Winchester StaBALL Match | <<locked>> | 80% | 36,985 psi | 77% | 2490 fps | 96.9% |
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 57 powders for 6 x 52 R BB2 loaded with the .243 | 100gr | Hornady InterLock RN. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,700 fps; across all powders the maximum-charge window runs from 1,680 fps to 2,700 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 73–90 %, leaving at least 10 % headroom. The 100.0 gr projectile in 0.243" calls for a 1:12.0 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 | Hornady InterLock RN 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.