Load Specifications
Load data in caliber 6 x 52 R BB2 with .243 | 109gr | Berger Long Range Hybrid Target bullet and 64 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 SNPE Vectan SP 11.
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% | 41,263 psi | 86% | 2408 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 42,975 psi | 90% | 2454 fps | 99.8% |
| Accurate 4064 | <<locked>> | 88% | 41,423 psi | 87% | 2441 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 42,206 psi | 88% | 2516 fps | 96.8% |
| ADI AR 2206H | <<locked>> | 84% | 43,265 psi | 90% | 2461 fps | 98.1% |
| ADI AR 2208 | <<locked>> | 88% | 41,481 psi | 87% | 2411 fps | 97% |
| ADI Benchmark 8208 | <<locked>> | 82% | 42,786 psi | 89% | 2428 fps | 98.9% |
| Alliant AR-Comp | <<locked>> | 82% | 41,916 psi | 88% | 2428 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 41,901 psi | 88% | 2530 fps | 96.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 42,989 psi | 90% | 2477 fps | 98.8% |
| Alliant Reloder-15 | <<locked>> | 86% | 41,234 psi | 86% | 2444 fps | 97.2% |
| Alliant Reloder-16 | <<locked>> | 98% | 42,656 psi | 89% | 2523 fps | 96.9% |
| Alliant Reloder-17 | <<locked>> | 94% | 42,960 psi | 90% | 2559 fps | 98.5% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 42,134 psi | 88% | 2461 fps | 96.8% |
| Bofors RP3 | <<locked>> | 90% | 42,902 psi | 90% | 2487 fps | 98.9% |
| Hodgdon BL-C2 | <<locked>> | 82% | 40,799 psi | 85% | 2441 fps | 99.1% |
| Hodgdon H380 | <<locked>> | 88% | 41,611 psi | 87% | 2441 fps | 95.9% |
| Hodgdon H4895 | <<locked>> | 82% | 40,944 psi | 86% | 2425 fps | 98.1% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 41,466 psi | 87% | 2467 fps | 98.1% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 41,553 psi | 87% | 2487 fps | 98.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,563 psi | 72% | 1565 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 41,930 psi | 88% | 2428 fps | 98.2% |
| IMR 3031 | <<locked>> | 84% | 42,395 psi | 89% | 2470 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 40,915 psi | 85% | 2395 fps | 97.1% |
| IMR 4831 | <<locked>> | 98% | 40,582 psi | 85% | 2467 fps | 96.4% |
| IMR 4895 | <<locked>> | 86% | 42,221 psi | 88% | 2477 fps | 98% |
| IMR 8208 XBR | <<locked>> | 82% | 42,786 psi | 89% | 2428 fps | 98.9% |
| Lovex D073.6 | <<locked>> | 84% | 41,394 psi | 86% | 2438 fps | 99.7% |
| Lovex S060 | <<locked>> | 82% | 41,321 psi | 86% | 2362 fps | 97.7% |
| Lovex S062 | <<locked>> | 86% | 40,712 psi | 85% | 2405 fps | 98.7% |
| Norma 201 | <<locked>> | 84% | 42,192 psi | 88% | 2418 fps | 98.9% |
| Norma 202 | <<locked>> | 84% | 42,554 psi | 89% | 2434 fps | 100% |
| Norma 203B | <<locked>> | 88% | 43,163 psi | 90% | 2484 fps | 98.2% |
| Norma URP | <<locked>> | 98% | 42,743 psi | 89% | 2516 fps | 96.7% |
| Ramshot Big Game | <<locked>> | 88% | 42,685 psi | 89% | 2493 fps | 97.9% |
| Ramshot Wild Boar | <<locked>> | 82% | 41,785 psi | 87% | 2444 fps | 97.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,882 psi | 73% | 1601 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 42,714 psi | 89% | 2536 fps | 97.6% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 43,091 psi | 90% | 2575 fps | 99.9% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 42,090 psi | 88% | 2530 fps | 96.3% |
| Rottweil R 902 | <<locked>> | 86% | 42,496 psi | 89% | 2415 fps | 98.9% |
| Rottweil R 903 | <<locked>> | 92% | 42,772 psi | 89% | 2477 fps | 98.6% |
| Shooters World Match Rifle | <<locked>> | 84% | 41,394 psi | 86% | 2438 fps | 99.7% |
| Shooters World Precision | <<locked>> | 86% | 40,712 psi | 85% | 2405 fps | 98.7% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 41,626 psi | 87% | 2480 fps | 97.7% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 43,250 psi | 90% | 2441 fps | 96.2% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 41,597 psi | 87% | 2431 fps | 97.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 41,452 psi | 87% | 2339 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 40,901 psi | 85% | 2339 fps | 100% |
| Somchem S335 | <<locked>> | 82% | 40,799 psi | 85% | 2339 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 42,946 psi | 90% | 2444 fps | 97.9% |
| Somchem S355 | <<locked>> | 90% | 41,133 psi | 86% | 2434 fps | 98.1% |
| Somchem S365ᴾ | <<locked>> | 100% | 40,683 psi | 85% | 2520 fps | 99.2% |
| Vihtavuori N133 | <<locked>> | 82% | 41,495 psi | 87% | 2336 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 41,814 psi | 87% | 2408 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 42,743 psi | 89% | 2415 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 41,989 psi | 88% | 2421 fps | 99.2% |
| Vihtavuori N160 | <<locked>> | 96% | 42,163 psi | 88% | 2467 fps | 96.4% |
| Vihtavuori N530 | <<locked>> | 82% | 42,453 psi | 89% | 2418 fps | 99% |
| Vihtavuori N540 | <<locked>> | 86% | 40,959 psi | 86% | 2402 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 96% | 41,089 psi | 86% | 2467 fps | 96% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 43,018 psi | 90% | 2454 fps | 98.5% |
| Winchester 748 | <<locked>> | 82% | 41,423 psi | 87% | 2454 fps | 99.4% |
| Winchester StaBALL Match | <<locked>> | 84% | 41,002 psi | 86% | 2438 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% | 33,837 psi | 71% | 2274 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 40,248 psi | 84% | 2408 fps | 99.6% |
| Accurate 4064 | <<locked>> | 80% | 31,995 psi | 67% | 2257 fps | 99% |
| Accurate 4350 | <<locked>> | 94% | 36,753 psi | 77% | 2415 fps | 95.1% |
| ADI AR 2206H | <<locked>> | 80% | 38,203 psi | 80% | 2365 fps | 96.9% |
| ADI AR 2208 | <<locked>> | 84% | 36,637 psi | 77% | 2316 fps | 95.6% |
| ADI Benchmark 8208 | <<locked>> | 80% | 40,234 psi | 84% | 2382 fps | 98.5% |
| Alliant AR-Comp | <<locked>> | 80% | 39,117 psi | 82% | 2382 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 36,651 psi | 77% | 2418 fps | 95% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 31,517 psi | 66% | 2244 fps | 95.8% |
| Alliant Reloder-15 | <<locked>> | 80% | 34,156 psi | 71% | 2300 fps | 95% |
| Alliant Reloder-16 | <<locked>> | 94% | 38,130 psi | 80% | 2431 fps | 95.3% |
| Alliant Reloder-17 | 27.4 gr | 86% | 33,243 psi | 69% | 2349 fps | 95.4% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 36,883 psi | 77% | 2356 fps | 95.2% |
| Bofors RP3 | <<locked>> | 80% | 30,603 psi | 64% | 2234 fps | 95.6% |
| Hodgdon BL-C2 | <<locked>> | 80% | 37,884 psi | 79% | 2385 fps | 98.6% |
| Hodgdon H380 | <<locked>> | 86% | 38,667 psi | 81% | 2385 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 38,464 psi | 80% | 2379 fps | 97.6% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 32,547 psi | 68% | 2280 fps | 95.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 34,069 psi | 71% | 2333 fps | 96.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,831 psi | 54% | 1401 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 36,970 psi | 77% | 2333 fps | 97.1% |
| IMR 3031 | <<locked>> | 80% | 36,999 psi | 77% | 2375 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 36,071 psi | 75% | 2300 fps | 95.7% |
| IMR 4831 | <<locked>> | 96% | 38,058 psi | 80% | 2418 fps | 95.6% |
| IMR 4895 | <<locked>> | 80% | 34,882 psi | 73% | 2326 fps | 96% |
| IMR 8208 XBR | <<locked>> | 80% | 40,234 psi | 84% | 2382 fps | 98.5% |
| Lovex D073.6 | <<locked>> | 80% | 36,318 psi | 76% | 2343 fps | 99% |
| Lovex S060 | <<locked>> | 80% | 38,812 psi | 81% | 2313 fps | 97.1% |
| Lovex S062 | <<locked>> | 80% | 33,692 psi | 70% | 2264 fps | 97% |
| Norma 201 | <<locked>> | 80% | 37,173 psi | 78% | 2323 fps | 97.9% |
| Norma 202 | <<locked>> | 80% | 37,492 psi | 78% | 2343 fps | 99.6% |
| Norma 203B | <<locked>> | 80% | 33,518 psi | 70% | 2290 fps | 95.4% |
| Norma URP | <<locked>> | 94% | 37,695 psi | 79% | 2418 fps | 95.1% |
| Ramshot Big Game | <<locked>> | 82% | 35,114 psi | 73% | 2343 fps | 95.7% |
| Ramshot Wild Boar | <<locked>> | 80% | 38,870 psi | 81% | 2388 fps | 97% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,817 psi | 54% | 1430 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 35,099 psi | 73% | 2382 fps | 95.3% |
| ReloadSwiss RS 60 | 25.4 gr | 80% | 28,935 psi | 60% | 2244 fps | 96.1% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 39,494 psi | 83% | 2480 fps | 95.5% |
| Rottweil R 902 | <<locked>> | 80% | 35,592 psi | 74% | 2280 fps | 97.5% |
| Rottweil R 903 | <<locked>> | 82% | 30,864 psi | 64% | 2234 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 36,318 psi | 76% | 2343 fps | 99% |
| Shooters World Precision | <<locked>> | 80% | 33,692 psi | 70% | 2264 fps | 97% |
| SNPE Vectan SP 11 | 26.3 gr | 84% | 34,272 psi | 72% | 2329 fps | 95.4% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 40,625 psi | 85% | 2395 fps | 95.4% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 36,753 psi | 77% | 2336 fps | 96.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 38,841 psi | 81% | 2293 fps | 99.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 31,865 psi | 67% | 2169 fps | 99.3% |
| Somchem S335 | <<locked>> | 80% | 38,363 psi | 80% | 2297 fps | 99.9% |
| Somchem S341 | <<locked>> | 80% | 37,521 psi | 78% | 2343 fps | 96.6% |
| Somchem S355 | <<locked>> | 82% | 31,937 psi | 67% | 2244 fps | 95.4% |
| Somchem S365 | <<locked>> | 90% | 29,457 psi | 62% | 2264 fps | 95.6% |
| Vihtavuori N133 | <<locked>> | 80% | 38,899 psi | 81% | 2293 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 34,200 psi | 71% | 2274 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 35,302 psi | 74% | 2280 fps | 99.5% |
| Vihtavuori N150 | <<locked>> | 80% | 28,442 psi | 59% | 2146 fps | 95.6% |
| Vihtavuori N160 | <<locked>> | 94% | 39,566 psi | 83% | 2418 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 80% | 39,798 psi | 83% | 2369 fps | 98.5% |
| Vihtavuori N540 | <<locked>> | 80% | 33,939 psi | 71% | 2267 fps | 98.9% |
| Vihtavuori N550 | <<locked>> | 94% | 38,595 psi | 81% | 2421 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 33,199 psi | 69% | 2257 fps | 95.5% |
| Winchester 748 | <<locked>> | 80% | 38,856 psi | 81% | 2408 fps | 99% |
| Winchester StaBALL Match | <<locked>> | 80% | 35,766 psi | 75% | 2336 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 64 powders for 6 x 52 R BB2 loaded with the .243 | 109gr | Berger Long Range Hybrid Target. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,575 fps; across all powders the maximum-charge window runs from 1,565 fps to 2,575 fps. Hodgdon Hybrid 100V gives the best case fill at 100 %, and 64 of the 64 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 109.0 gr projectile in 0.243" calls for a 1:8.0 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, SNPE Vectan SP 11 rank at the top here: for 6 x 52 R BB2 with the .243 | 109gr | Berger Long Range Hybrid Target 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.