Load Specifications
Load data in caliber 6 x 47 ATZL with .243 | 100gr | Sierra SBT GameKing bullet and 79 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Winchester 748, Alliant Power Pro 1200-R and Hodgdon BL-C2.
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 1680 | <<locked>> | 82% | 50,792 psi | 86% | 2480 fps | 100% |
| Accurate 2015 | <<locked>> | 96% | 52,272 psi | 89% | 2579 fps | 100% |
| Accurate 2200 | <<locked>> | 86% | 50,502 psi | 86% | 2598 fps | 96% |
| Accurate 2230 | <<locked>> | 86% | 50,691 psi | 86% | 2605 fps | 96.5% |
| Accurate 2460 | <<locked>> | 92% | 50,807 psi | 86% | 2592 fps | 99.6% |
| Accurate 2495ᴾ | <<locked>> | 100% | 46,934 psi | 80% | 2569 fps | 100% |
| Accurate 2520 | <<locked>> | 96% | 51,343 psi | 87% | 2638 fps | 99.5% |
| Accurate 4064ᴾ | <<locked>> | 100% | 43,584 psi | 74% | 2546 fps | 99.3% |
| Accurate LT-30 | <<locked>> | 88% | 51,808 psi | 88% | 2503 fps | 100% |
| Accurate LT-32 | <<locked>> | 88% | 52,301 psi | 89% | 2516 fps | 99.5% |
| ADI AR 2206H | <<locked>> | 98% | 51,430 psi | 88% | 2635 fps | 97.2% |
| ADI AR 2207 | <<locked>> | 86% | 52,344 psi | 89% | 2533 fps | 100% |
| ADI AR 2219 | <<locked>> | 88% | 49,850 psi | 85% | 2595 fps | 99.9% |
| ADI Benchmark 8208 | <<locked>> | 96% | 51,358 psi | 87% | 2605 fps | 98.3% |
| Alliant AR-Comp | <<locked>> | 98% | 52,214 psi | 89% | 2648 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 92% | 51,561 psi | 88% | 2690 fps | 98% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 44,048 psi | 75% | 2543 fps | 96.7% |
| Alliant Reloder-10x | <<locked>> | 92% | 52,794 psi | 90% | 2595 fps | 100% |
| Alliant Reloder-15ᴾ | <<locked>> | 100% | 48,269 psi | 82% | 2605 fps | 96% |
| Alliant Reloder-7 | <<locked>> | 84% | 50,444 psi | 86% | 2503 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 88% | 49,937 psi | 85% | 2493 fps | 100% |
| Bofors RP3ᴾ | <<locked>> | 100% | 43,482 psi | 74% | 2546 fps | 96.6% |
| Hodgdon Benchmark | <<locked>> | 94% | 51,155 psi | 87% | 2556 fps | 98.7% |
| Hodgdon BL-C2 | <<locked>> | 98% | 51,967 psi | 88% | 2671 fps | 98.9% |
| Hodgdon CFE223 | <<locked>> | 94% | 50,618 psi | 86% | 2694 fps | 96.4% |
| Hodgdon H322 | <<locked>> | 92% | 51,735 psi | 88% | 2621 fps | 100% |
| Hodgdon H335 | <<locked>> | 90% | 49,530 psi | 84% | 2598 fps | 99.6% |
| Hodgdon H4198 | <<locked>> | 84% | 50,618 psi | 86% | 2503 fps | 99.9% |
| Hodgdon H4895 | <<locked>> | 98% | 51,692 psi | 88% | 2644 fps | 97.8% |
| Hodgdon LEVERevolutionᴾ | <<locked>> | 100% | 49,356 psi | 84% | 2654 fps | 97.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,344 psi | 57% | 1552 fps | 100% |
| Hodgdon VARGET | <<locked>> | 98% | 50,241 psi | 86% | 2602 fps | 97.4% |
| IMR 3031ᴾ | <<locked>> | 100% | 52,388 psi | 89% | 2687 fps | 100% |
| IMR 4064ᴾ | <<locked>> | 100% | 48,327 psi | 82% | 2552 fps | 95.9% |
| IMR 4198 | <<locked>> | 90% | 50,720 psi | 86% | 2523 fps | 100% |
| IMR 4895ᴾ | <<locked>> | 100% | 49,342 psi | 84% | 2638 fps | 96.9% |
| IMR 8208 XBR | <<locked>> | 96% | 51,358 psi | 87% | 2605 fps | 98.3% |
| Lovex D073.4 | <<locked>> | 86% | 51,517 psi | 88% | 2605 fps | 99.3% |
| Lovex D073.5 | <<locked>> | 92% | 51,198 psi | 87% | 2598 fps | 99% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 52,431 psi | 89% | 2664 fps | 99.6% |
| Lovex S053 | <<locked>> | 82% | 52,475 psi | 89% | 2441 fps | 100% |
| Lovex S060 | <<locked>> | 98% | 52,910 psi | 90% | 2575 fps | 97.3% |
| Lovex S062ᴾ | <<locked>> | 100% | 47,311 psi | 81% | 2559 fps | 97.7% |
| Norma 200 | <<locked>> | 88% | 52,837 psi | 90% | 2572 fps | 100% |
| Norma 201ᴾ | <<locked>> | 100% | 52,953 psi | 90% | 2628 fps | 98.6% |
| Norma 202 | <<locked>> | 98% | 50,183 psi | 85% | 2605 fps | 99.7% |
| Norma 203Bᴾ | <<locked>> | 100% | 47,268 psi | 80% | 2595 fps | 96.4% |
| Ramshot Big Gameᴾ | <<locked>> | 100% | 48,095 psi | 82% | 2615 fps | 96% |
| Ramshot Wild Boar | <<locked>> | 96% | 49,980 psi | 85% | 2618 fps | 96.8% |
| Ramshot X-Terminator | <<locked>> | 92% | 49,792 psi | 85% | 2556 fps | 96.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,025 psi | 56% | 1581 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 92% | 51,343 psi | 87% | 2602 fps | 99.3% |
| ReloadSwiss RS 52ᴾ | <<locked>> | 100% | 50,430 psi | 86% | 2703 fps | 96.3% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 42,018 psi | 72% | 2566 fps | 97.4% |
| Rottweil R 901 | <<locked>> | 96% | 50,995 psi | 87% | 2585 fps | 99.6% |
| Rottweil R 902ᴾ | <<locked>> | 100% | 50,357 psi | 86% | 2582 fps | 98.2% |
| Shooters World AR Plus | <<locked>> | 86% | 51,517 psi | 88% | 2605 fps | 99.3% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 52,431 psi | 89% | 2664 fps | 99.6% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 47,311 psi | 81% | 2559 fps | 97.7% |
| Shooters World Tactical Rifle | <<locked>> | 90% | 51,822 psi | 88% | 2569 fps | 98% |
| SNPE Vectan BA6 1/2 | <<locked>> | 86% | 52,924 psi | 90% | 2297 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 88% | 50,836 psi | 87% | 2608 fps | 99.7% |
| SNPE Vectan SP 3 | <<locked>> | 90% | 50,850 psi | 87% | 2569 fps | 100% |
| SNPE Vectan SP 9ᴾ | <<locked>> | 100% | 52,736 psi | 90% | 2648 fps | 97.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 96% | 50,009 psi | 85% | 2513 fps | 99.6% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 45,745 psi | 78% | 2464 fps | 99.7% |
| Somchem S321 | <<locked>> | 94% | 52,257 psi | 89% | 2641 fps | 98.7% |
| Somchem S335 | <<locked>> | 98% | 51,474 psi | 88% | 2552 fps | 99.9% |
| Somchem S341 | <<locked>> | 98% | 52,083 psi | 89% | 2621 fps | 97% |
| Vihtavuori N120 | <<locked>> | 86% | 52,344 psi | 89% | 2487 fps | 100% |
| Vihtavuori N130 | <<locked>> | 94% | 52,953 psi | 90% | 2543 fps | 100% |
| Vihtavuori N133 | <<locked>> | 98% | 52,518 psi | 89% | 2552 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 47,906 psi | 82% | 2569 fps | 100% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 50,270 psi | 86% | 2582 fps | 99.8% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 40,205 psi | 68% | 2434 fps | 96.6% |
| Vihtavuori N530 | <<locked>> | 96% | 51,561 psi | 88% | 2598 fps | 98.3% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 48,312 psi | 82% | 2572 fps | 99.4% |
| Winchester 748 | <<locked>> | 96% | 49,588 psi | 84% | 2638 fps | 98.8% |
| Winchester StaBALL Matchᴾ | <<locked>> | 100% | 52,228 psi | 89% | 2657 fps | 97.8% |
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 1680 | <<locked>> | 80% | 47,195 psi | 80% | 2431 fps | 100% |
| Accurate 2015 | <<locked>> | 80% | 31,981 psi | 54% | 2234 fps | 98.7% |
| Accurate 2200 | <<locked>> | 84% | 47,485 psi | 81% | 2549 fps | 95.3% |
| Accurate 2230 | <<locked>> | 84% | 47,500 psi | 81% | 2559 fps | 95.8% |
| Accurate 2460 | <<locked>> | 80% | 34,127 psi | 58% | 2303 fps | 96.6% |
| Accurate 2495 | <<locked>> | 80% | 24,279 psi | 41% | 2113 fps | 96.5% |
| Accurate 2520 | <<locked>> | 82% | 31,647 psi | 54% | 2287 fps | 95.3% |
| Accurate 4064 | <<locked>> | 86% | 27,963 psi | 48% | 2224 fps | 95.3% |
| Accurate LT-30 | <<locked>> | 80% | 40,611 psi | 69% | 2326 fps | 99.2% |
| Accurate LT-32 | <<locked>> | 80% | 40,988 psi | 70% | 2336 fps | 97.9% |
| ADI AR 2206H | <<locked>> | 92% | 42,351 psi | 72% | 2484 fps | 95.1% |
| ADI AR 2207 | <<locked>> | 80% | 43,265 psi | 74% | 2408 fps | 100% |
| ADI AR 2219 | <<locked>> | 80% | 38,189 psi | 65% | 2402 fps | 98.8% |
| ADI Benchmark 8208 | <<locked>> | 86% | 37,536 psi | 64% | 2365 fps | 95.1% |
| Alliant AR-Comp | <<locked>> | 80% | 29,211 psi | 50% | 2251 fps | 99.7% |
| Alliant Power Pro 1200-R | 21.6 gr | 84% | 40,001 psi | 68% | 2490 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 38,943 psi | 66% | 2448 fps | 95.3% |
| Alliant Reloder-10x | <<locked>> | 80% | 36,593 psi | 62% | 2339 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 98% | 45,339 psi | 77% | 2556 fps | 95.2% |
| Alliant Reloder-7 | <<locked>> | 80% | 44,628 psi | 76% | 2418 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 38,783 psi | 66% | 2316 fps | 99.1% |
| Bofors RP3 | <<locked>> | 96% | 37,724 psi | 64% | 2441 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 82% | 35,462 psi | 60% | 2277 fps | 95.1% |
| Hodgdon BL-C2 | 24.1 gr | 88% | 37,173 psi | 63% | 2421 fps | 95.8% |
| Hodgdon CFE223 | <<locked>> | 92% | 47,659 psi | 81% | 2644 fps | 95.7% |
| Hodgdon H322 | <<locked>> | 80% | 34,940 psi | 59% | 2336 fps | 98.1% |
| Hodgdon H335 | <<locked>> | 80% | 35,578 psi | 61% | 2352 fps | 97.3% |
| Hodgdon H4198 | <<locked>> | 80% | 44,701 psi | 76% | 2411 fps | 99.4% |
| Hodgdon H4895 | <<locked>> | 90% | 40,059 psi | 68% | 2448 fps | 95.1% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 40,741 psi | 69% | 2503 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,352 psi | 41% | 1378 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 41,872 psi | 71% | 2461 fps | 95.5% |
| IMR 3031 | <<locked>> | 80% | 28,036 psi | 48% | 2224 fps | 96.6% |
| IMR 4064 | <<locked>> | 98% | 45,411 psi | 77% | 2507 fps | 95.2% |
| IMR 4198 | <<locked>> | 80% | 37,869 psi | 64% | 2320 fps | 100% |
| IMR 4895 | <<locked>> | 96% | 43,569 psi | 74% | 2543 fps | 95.6% |
| IMR 8208 XBR | <<locked>> | 86% | 37,536 psi | 64% | 2365 fps | 95.1% |
| Lovex D073.4 | <<locked>> | 80% | 41,495 psi | 71% | 2448 fps | 97.9% |
| Lovex D073.5 | <<locked>> | 80% | 33,562 psi | 57% | 2287 fps | 95% |
| Lovex D073.6 | <<locked>> | 86% | 32,619 psi | 56% | 2320 fps | 95.7% |
| Lovex S053 | <<locked>> | 80% | 49,313 psi | 84% | 2398 fps | 100% |
| Lovex S060 | <<locked>> | 92% | 44,280 psi | 75% | 2441 fps | 95.5% |
| Lovex S062 | <<locked>> | 92% | 37,028 psi | 63% | 2375 fps | 95.1% |
| Norma 200 | <<locked>> | 80% | 41,307 psi | 70% | 2402 fps | 100% |
| Norma 201 | <<locked>> | 88% | 36,680 psi | 62% | 2349 fps | 95% |
| Norma 202 | <<locked>> | 82% | 30,095 psi | 51% | 2231 fps | 95.5% |
| Norma 203B | <<locked>> | 96% | 41,771 psi | 71% | 2500 fps | 95% |
| Ramshot Big Game | <<locked>> | 98% | 44,759 psi | 76% | 2556 fps | 95.2% |
| Ramshot Wild Boar | <<locked>> | 92% | 44,280 psi | 75% | 2526 fps | 95.5% |
| Ramshot X-Terminator | <<locked>> | 88% | 43,758 psi | 74% | 2457 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,656 psi | 42% | 1417 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 35,114 psi | 60% | 2316 fps | 96% |
| ReloadSwiss RS 52 | <<locked>> | 98% | 47,384 psi | 81% | 2651 fps | 95.6% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 37,318 psi | 64% | 2464 fps | 95.8% |
| Rottweil R 901 | <<locked>> | 80% | 31,894 psi | 54% | 2231 fps | 95.8% |
| Rottweil R 902 | <<locked>> | 90% | 37,043 psi | 63% | 2352 fps | 95% |
| Shooters World AR Plus | <<locked>> | 80% | 41,495 psi | 71% | 2448 fps | 97.9% |
| Shooters World Match Rifle | <<locked>> | 86% | 32,619 psi | 56% | 2320 fps | 95.7% |
| Shooters World Precision | <<locked>> | 92% | 37,028 psi | 63% | 2375 fps | 95.1% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 39,436 psi | 67% | 2365 fps | 95.2% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 45,643 psi | 78% | 2208 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 38,986 psi | 66% | 2411 fps | 98% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 36,941 psi | 63% | 2339 fps | 99.1% |
| SNPE Vectan SP 9 | <<locked>> | 94% | 43,497 psi | 74% | 2500 fps | 95.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 30,530 psi | 52% | 2159 fps | 95.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 28,007 psi | 48% | 2119 fps | 95.7% |
| Somchem S321 | <<locked>> | 84% | 37,246 psi | 63% | 2385 fps | 95.4% |
| Somchem S335 | <<locked>> | 80% | 29,965 psi | 51% | 2165 fps | 96.3% |
| Somchem S341 | <<locked>> | 94% | 45,556 psi | 78% | 2523 fps | 95.6% |
| Vihtavuori N120 | <<locked>> | 80% | 43,366 psi | 74% | 2365 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 34,824 psi | 59% | 2254 fps | 99.6% |
| Vihtavuori N133 | <<locked>> | 80% | 30,269 psi | 52% | 2172 fps | 98.1% |
| Vihtavuori N135 | <<locked>> | 80% | 25,411 psi | 43% | 2123 fps | 96.7% |
| Vihtavuori N140 | <<locked>> | 82% | 28,485 psi | 48% | 2172 fps | 95.1% |
| Vihtavuori N150 | <<locked>> | 96% | 35,476 psi | 60% | 2343 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 86% | 37,159 psi | 63% | 2356 fps | 95.1% |
| Vihtavuori N540 | <<locked>> | 86% | 31,227 psi | 53% | 2254 fps | 95.6% |
| Winchester 748 | 23.1 gr | 86% | 35,723 psi | 61% | 2385 fps | 95.6% |
| Winchester StaBALL Match | <<locked>> | 92% | 39,958 psi | 68% | 2454 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 79 powders for 6 x 47 ATZL loaded with the .243 | 100gr | Sierra SBT GameKing. ReloadSwiss RS 52 delivers the highest muzzle velocity at 2,703 fps; across all powders the maximum-charge window runs from 1,552 fps to 2,703 fps. Accurate 2495 gives the best case fill at 100 %, and 79 of the 79 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (405 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 100.0 gr projectile in 0.243" calls for a 1:10.0 twist; slower twists will usually not stabilise this weight. Accurate 2495, Accurate 4064, Alliant Reloder- TS 15.5 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. Winchester 748, Alliant Power Pro 1200-R, Hodgdon BL-C2 rank at the top here: for 6 x 47 ATZL with the .243 | 100gr | Sierra SBT GameKing 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.