Load Specifications
Load data in caliber 6 x 47 ATZL with .243 | 105gr | Speer Spitzer Soft Point bullet and 83 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 1200-R, Winchester 748 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.
A valid access license is required to use the Personalized Load Calculator.
You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 82% | 51,488 psi | 88% | 2418 fps | 100% |
| Accurate 2015 | <<locked>> | 94% | 50,169 psi | 85% | 2477 fps | 100% |
| Accurate 2200 | <<locked>> | 86% | 51,401 psi | 88% | 2539 fps | 96.6% |
| Accurate 2230 | <<locked>> | 86% | 51,837 psi | 88% | 2552 fps | 97.1% |
| Accurate 2460 | <<locked>> | 92% | 52,098 psi | 89% | 2536 fps | 99.8% |
| Accurate 2495ᴾ | <<locked>> | 100% | 48,414 psi | 82% | 2516 fps | 100% |
| Accurate 2520 | <<locked>> | 96% | 52,286 psi | 89% | 2575 fps | 99.7% |
| Accurate 4064ᴾ | <<locked>> | 100% | 44,904 psi | 76% | 2497 fps | 99.6% |
| Accurate LT-30 | <<locked>> | 88% | 52,475 psi | 89% | 2438 fps | 100% |
| Accurate LT-32 | <<locked>> | 88% | 52,924 psi | 90% | 2454 fps | 99.7% |
| ADI AR 2206H | <<locked>> | 98% | 52,112 psi | 89% | 2572 fps | 97.7% |
| ADI AR 2207 | <<locked>> | 86% | 52,968 psi | 90% | 2464 fps | 100% |
| ADI AR 2208ᴾ | <<locked>> | 100% | 47,137 psi | 80% | 2474 fps | 95.8% |
| ADI AR 2219 | <<locked>> | 88% | 50,923 psi | 87% | 2536 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 96% | 51,996 psi | 89% | 2543 fps | 98.7% |
| Alliant AR-Comp | <<locked>> | 98% | 52,953 psi | 90% | 2582 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 92% | 52,779 psi | 90% | 2635 fps | 98.5% |
| Alliant Power Pro 2000-MRᴾ | <<locked>> | 100% | 52,243 psi | 89% | 2654 fps | 96.3% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 44,744 psi | 76% | 2484 fps | 97.3% |
| Alliant Reloder-10x | <<locked>> | 90% | 50,372 psi | 86% | 2490 fps | 100% |
| Alliant Reloder-15ᴾ | <<locked>> | 100% | 48,979 psi | 83% | 2546 fps | 96.6% |
| Alliant Reloder-7 | <<locked>> | 84% | 51,039 psi | 87% | 2438 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 88% | 50,995 psi | 87% | 2438 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 98% | 51,924 psi | 88% | 2582 fps | 96.4% |
| Bofors RP3ᴾ | <<locked>> | 100% | 44,367 psi | 76% | 2490 fps | 97.3% |
| Hodgdon Benchmark | <<locked>> | 94% | 52,185 psi | 89% | 2500 fps | 99.1% |
| Hodgdon BL-C2 | <<locked>> | 98% | 52,968 psi | 90% | 2612 fps | 99.2% |
| Hodgdon CFE223 | <<locked>> | 94% | 51,532 psi | 88% | 2635 fps | 97% |
| Hodgdon H322 | <<locked>> | 92% | 52,939 psi | 90% | 2562 fps | 100% |
| Hodgdon H335 | <<locked>> | 90% | 50,778 psi | 86% | 2543 fps | 99.8% |
| Hodgdon H4198 | <<locked>> | 84% | 51,111 psi | 87% | 2438 fps | 100% |
| Hodgdon H4895 | <<locked>> | 98% | 52,388 psi | 89% | 2585 fps | 98.2% |
| Hodgdon LEVERevolutionᴾ | <<locked>> | 100% | 50,227 psi | 86% | 2598 fps | 98.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,460 psi | 57% | 1503 fps | 100% |
| Hodgdon VARGET | <<locked>> | 98% | 50,879 psi | 87% | 2539 fps | 97.9% |
| IMR 3031 | <<locked>> | 98% | 50,386 psi | 86% | 2585 fps | 100% |
| IMR 4064ᴾ | <<locked>> | 100% | 49,559 psi | 84% | 2503 fps | 96.6% |
| IMR 4198 | <<locked>> | 90% | 51,982 psi | 88% | 2464 fps | 100% |
| IMR 4895ᴾ | <<locked>> | 100% | 50,125 psi | 85% | 2579 fps | 97.5% |
| IMR 8208 XBR | <<locked>> | 96% | 51,996 psi | 89% | 2543 fps | 98.7% |
| Lovex D073.4 | <<locked>> | 86% | 52,750 psi | 90% | 2549 fps | 99.6% |
| Lovex D073.5 | <<locked>> | 92% | 51,967 psi | 88% | 2539 fps | 99.3% |
| Lovex D073.6 | <<locked>> | 98% | 50,140 psi | 85% | 2559 fps | 99.5% |
| Lovex S060 | <<locked>> | 96% | 50,879 psi | 87% | 2477 fps | 97.4% |
| Lovex S062ᴾ | <<locked>> | 100% | 47,935 psi | 82% | 2500 fps | 98.2% |
| Norma 200 | <<locked>> | 86% | 50,488 psi | 86% | 2467 fps | 100% |
| Norma 201 | <<locked>> | 98% | 51,039 psi | 87% | 2530 fps | 98.6% |
| Norma 202 | <<locked>> | 98% | 50,807 psi | 86% | 2543 fps | 99.8% |
| Norma 203Bᴾ | <<locked>> | 100% | 48,066 psi | 82% | 2536 fps | 97% |
| Ramshot Big Gameᴾ | <<locked>> | 100% | 49,052 psi | 84% | 2562 fps | 96.7% |
| Ramshot Wild Boar | <<locked>> | 96% | 51,430 psi | 88% | 2569 fps | 97.5% |
| Ramshot X-Terminator | <<locked>> | 92% | 50,981 psi | 87% | 2503 fps | 97.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,170 psi | 56% | 1535 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 92% | 52,460 psi | 89% | 2546 fps | 99.5% |
| ReloadSwiss RS 52ᴾ | <<locked>> | 100% | 51,372 psi | 87% | 2644 fps | 97% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 43,323 psi | 74% | 2526 fps | 98.2% |
| Rottweil R 901 | <<locked>> | 96% | 52,069 psi | 89% | 2526 fps | 99.8% |
| Rottweil R 902ᴾ | <<locked>> | 100% | 50,966 psi | 87% | 2520 fps | 98.6% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 40,901 psi | 70% | 2425 fps | 96.1% |
| Shooters World AR Plus | <<locked>> | 86% | 52,750 psi | 90% | 2549 fps | 99.6% |
| Shooters World Match Rifle | <<locked>> | 98% | 50,140 psi | 85% | 2559 fps | 99.5% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 47,935 psi | 82% | 2500 fps | 98.2% |
| Shooters World Tactical Rifle | <<locked>> | 90% | 53,040 psi | 90% | 2516 fps | 98.5% |
| SNPE Vectan BA6 1/2 | <<locked>> | 84% | 51,024 psi | 87% | 2205 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 88% | 51,401 psi | 88% | 2543 fps | 99.8% |
| SNPE Vectan SP 3 | <<locked>> | 90% | 51,735 psi | 88% | 2507 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 98% | 50,444 psi | 86% | 2546 fps | 97.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 96% | 50,981 psi | 87% | 2454 fps | 99.8% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 46,833 psi | 80% | 2411 fps | 99.9% |
| Somchem S321 | <<locked>> | 94% | 53,142 psi | 90% | 2582 fps | 99% |
| Somchem S335 | <<locked>> | 98% | 52,678 psi | 90% | 2497 fps | 100% |
| Somchem S341 | <<locked>> | 98% | 53,127 psi | 90% | 2566 fps | 97.6% |
| Somchem S355ᴾ | <<locked>> | 100% | 42,815 psi | 73% | 2441 fps | 96.3% |
| Vihtavuori N120 | <<locked>> | 86% | 52,953 psi | 90% | 2418 fps | 100% |
| Vihtavuori N130 | <<locked>> | 92% | 51,300 psi | 87% | 2448 fps | 100% |
| Vihtavuori N133 | <<locked>> | 96% | 50,401 psi | 86% | 2451 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 49,284 psi | 84% | 2513 fps | 100% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 51,024 psi | 87% | 2520 fps | 99.9% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 40,828 psi | 70% | 2382 fps | 97.2% |
| Vihtavuori N530 | <<locked>> | 96% | 52,895 psi | 90% | 2546 fps | 98.8% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 49,777 psi | 85% | 2523 fps | 99.7% |
| Winchester 748 | <<locked>> | 96% | 50,386 psi | 86% | 2579 fps | 99.2% |
| Winchester StaBALL Match | <<locked>> | 98% | 49,995 psi | 85% | 2556 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% | 48,385 psi | 82% | 2379 fps | 100% |
| Accurate 2015 | <<locked>> | 80% | 32,358 psi | 55% | 2178 fps | 99% |
| Accurate 2200 | <<locked>> | 82% | 45,194 psi | 77% | 2441 fps | 95.2% |
| Accurate 2230 | <<locked>> | 82% | 44,918 psi | 76% | 2448 fps | 95.6% |
| Accurate 2460 | <<locked>> | 80% | 34,766 psi | 59% | 2251 fps | 97.2% |
| Accurate 2495 | <<locked>> | 80% | 25,106 psi | 43% | 2077 fps | 97.4% |
| Accurate 2520 | <<locked>> | 80% | 30,327 psi | 52% | 2192 fps | 95.3% |
| Accurate 4064 | <<locked>> | 84% | 26,774 psi | 46% | 2129 fps | 95.2% |
| Accurate LT-30 | <<locked>> | 80% | 41,437 psi | 71% | 2274 fps | 99.5% |
| Accurate LT-32 | <<locked>> | 80% | 41,814 psi | 71% | 2283 fps | 98.4% |
| ADI AR 2206H | <<locked>> | 90% | 40,712 psi | 69% | 2385 fps | 95.1% |
| ADI AR 2207 | <<locked>> | 80% | 44,179 psi | 75% | 2349 fps | 100% |
| ADI AR 2208 | <<locked>> | 98% | 44,338 psi | 75% | 2425 fps | 95.1% |
| ADI AR 2219 | <<locked>> | 80% | 39,276 psi | 67% | 2356 fps | 99.2% |
| ADI Benchmark 8208 | <<locked>> | 84% | 35,882 psi | 61% | 2267 fps | 95% |
| Alliant AR-Comp | <<locked>> | 80% | 29,573 psi | 50% | 2195 fps | 99.9% |
| Alliant Power Pro 1200-R | 20.6 gr | 82% | 38,145 psi | 65% | 2385 fps | 95.2% |
| Alliant Power Pro 2000-MR | <<locked>> | 98% | 48,414 psi | 82% | 2592 fps | 95.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 37,072 psi | 63% | 2346 fps | 95.2% |
| Alliant Reloder-10x | <<locked>> | 80% | 37,478 psi | 64% | 2287 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 96% | 43,250 psi | 74% | 2454 fps | 95.2% |
| Alliant Reloder-7 | <<locked>> | 80% | 45,005 psi | 77% | 2352 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 39,349 psi | 67% | 2260 fps | 99.4% |
| Baschieri & Pellagri 107 | <<locked>> | 96% | 48,878 psi | 83% | 2536 fps | 95.7% |
| Bofors RP3 | <<locked>> | 94% | 36,376 psi | 62% | 2349 fps | 95.1% |
| Hodgdon Benchmark | <<locked>> | 80% | 34,142 psi | 58% | 2188 fps | 95.1% |
| Hodgdon BL-C2 | 23 gr | 86% | 35,331 psi | 60% | 2320 fps | 95.7% |
| Hodgdon CFE223 | <<locked>> | 90% | 44,976 psi | 77% | 2530 fps | 95.5% |
| Hodgdon H322 | <<locked>> | 80% | 35,853 psi | 61% | 2290 fps | 98.6% |
| Hodgdon H335 | <<locked>> | 80% | 36,216 psi | 62% | 2300 fps | 97.8% |
| Hodgdon H4198 | <<locked>> | 80% | 45,672 psi | 78% | 2356 fps | 99.7% |
| Hodgdon H4895 | <<locked>> | 88% | 38,406 psi | 65% | 2349 fps | 95.1% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 38,885 psi | 66% | 2402 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,729 psi | 42% | 1342 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 39,711 psi | 68% | 2356 fps | 95.3% |
| IMR 3031 | <<locked>> | 80% | 28,384 psi | 48% | 2172 fps | 97.3% |
| IMR 4064 | <<locked>> | 96% | 43,642 psi | 74% | 2408 fps | 95.2% |
| IMR 4198 | <<locked>> | 80% | 38,580 psi | 66% | 2264 fps | 100% |
| IMR 4895 | <<locked>> | 94% | 41,466 psi | 71% | 2438 fps | 95.5% |
| IMR 8208 XBR | <<locked>> | 84% | 35,882 psi | 61% | 2267 fps | 95% |
| Lovex D073.4 | <<locked>> | 80% | 42,293 psi | 72% | 2392 fps | 98.4% |
| Lovex D073.5 | <<locked>> | 80% | 34,650 psi | 59% | 2251 fps | 95.9% |
| Lovex D073.6 | <<locked>> | 84% | 30,908 psi | 53% | 2218 fps | 95.5% |
| Lovex S060 | <<locked>> | 90% | 42,467 psi | 72% | 2343 fps | 95.5% |
| Lovex S062 | <<locked>> | 90% | 35,491 psi | 60% | 2280 fps | 95.1% |
| Norma 200 | <<locked>> | 80% | 42,337 psi | 72% | 2349 fps | 100% |
| Norma 201 | <<locked>> | 88% | 37,376 psi | 64% | 2300 fps | 95.7% |
| Norma 202 | <<locked>> | 80% | 29,051 psi | 49% | 2142 fps | 95.5% |
| Norma 203B | <<locked>> | 96% | 42,380 psi | 72% | 2444 fps | 95.6% |
| Ramshot Big Game | <<locked>> | 96% | 42,888 psi | 73% | 2457 fps | 95.2% |
| Ramshot Wild Boar | <<locked>> | 90% | 42,250 psi | 72% | 2425 fps | 95.4% |
| Ramshot X-Terminator | <<locked>> | 86% | 42,148 psi | 72% | 2362 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,598 psi | 42% | 1371 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 35,636 psi | 61% | 2264 fps | 96.6% |
| ReloadSwiss RS 52 | <<locked>> | 96% | 45,208 psi | 77% | 2546 fps | 95.6% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 35,650 psi | 61% | 2365 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 80% | 32,605 psi | 56% | 2185 fps | 96.5% |
| Rottweil R 902 | <<locked>> | 88% | 35,462 psi | 60% | 2254 fps | 95% |
| Rottweil R 903 | <<locked>> | 98% | 38,798 psi | 66% | 2385 fps | 95.4% |
| Shooters World AR Plus | <<locked>> | 80% | 42,293 psi | 72% | 2392 fps | 98.4% |
| Shooters World Match Rifle | <<locked>> | 84% | 30,908 psi | 53% | 2218 fps | 95.5% |
| Shooters World Precision | <<locked>> | 90% | 35,491 psi | 60% | 2280 fps | 95.1% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 37,681 psi | 64% | 2267 fps | 95.1% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 46,137 psi | 79% | 2146 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 39,697 psi | 68% | 2356 fps | 98.5% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 37,797 psi | 64% | 2290 fps | 99.5% |
| SNPE Vectan SP 9 | <<locked>> | 92% | 41,974 psi | 71% | 2408 fps | 95.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 31,212 psi | 53% | 2113 fps | 96.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 26,948 psi | 46% | 2034 fps | 95.7% |
| Somchem S321 | <<locked>> | 82% | 35,795 psi | 61% | 2290 fps | 95.4% |
| Somchem S335 | <<locked>> | 80% | 30,705 psi | 52% | 2123 fps | 97% |
| Somchem S341 | <<locked>> | 92% | 43,511 psi | 74% | 2421 fps | 95.6% |
| Somchem S355 | <<locked>> | 98% | 40,205 psi | 68% | 2395 fps | 95.6% |
| Vihtavuori N120 | <<locked>> | 80% | 44,266 psi | 75% | 2306 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 35,592 psi | 61% | 2205 fps | 99.8% |
| Vihtavuori N133 | <<locked>> | 80% | 31,024 psi | 53% | 2126 fps | 98.6% |
| Vihtavuori N135 | <<locked>> | 80% | 26,063 psi | 44% | 2083 fps | 97.5% |
| Vihtavuori N140 | <<locked>> | 80% | 27,499 psi | 47% | 2087 fps | 95.2% |
| Vihtavuori N150 | <<locked>> | 94% | 34,142 psi | 58% | 2254 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 84% | 35,505 psi | 60% | 2257 fps | 95% |
| Vihtavuori N540 | <<locked>> | 84% | 29,936 psi | 51% | 2162 fps | 95.6% |
| Winchester 748 | 22.1 gr | 84% | 34,229 psi | 58% | 2290 fps | 95.5% |
| Winchester StaBALL Match | <<locked>> | 92% | 40,959 psi | 70% | 2408 fps | 95.8% |
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 83 powders for 6 x 47 ATZL loaded with the .243 | 105gr | Speer Spitzer Soft Point. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,654 fps; across all powders the maximum-charge window runs from 1,503 fps to 2,654 fps. Accurate 2495 gives the best case fill at 100 %, and 83 of the 83 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 105.0 gr projectile in 0.243" calls for a 1:10.0 twist; slower twists will usually not stabilise this weight. Accurate 2495, Accurate 4064, ADI AR 2208 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. Alliant Power Pro 1200-R, Winchester 748, Hodgdon BL-C2 rank at the top here: for 6 x 47 ATZL with the .243 | 105gr | Speer Spitzer Soft Point 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.