Load Specifications
Load data in caliber 6 x 47 ATZL with .243 | 105gr | Speer RN bullet and 85 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 52, Hodgdon CFE223 and Alliant Power Pro 1200-R.
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 2015 | <<locked>> | 92% | 50,125 psi | 85% | 2500 fps | 100% |
| Accurate 2200 | <<locked>> | 84% | 50,705 psi | 86% | 2562 fps | 97% |
| Accurate 2230 | <<locked>> | 84% | 50,908 psi | 87% | 2569 fps | 97.4% |
| Accurate 2460 | <<locked>> | 90% | 51,706 psi | 88% | 2556 fps | 99.9% |
| Accurate 2495ᴾ | <<locked>> | 100% | 52,112 psi | 89% | 2582 fps | 100% |
| Accurate 2520 | <<locked>> | 94% | 52,243 psi | 89% | 2602 fps | 99.8% |
| Accurate 4064ᴾ | <<locked>> | 100% | 48,298 psi | 82% | 2569 fps | 99.9% |
| Accurate LT-30 | <<locked>> | 86% | 51,750 psi | 88% | 2457 fps | 100% |
| Accurate LT-32 | <<locked>> | 86% | 52,156 psi | 89% | 2474 fps | 99.8% |
| ADI AR 2206H | <<locked>> | 96% | 52,083 psi | 89% | 2602 fps | 98.1% |
| ADI AR 2207 | <<locked>> | 84% | 52,098 psi | 89% | 2477 fps | 100% |
| ADI AR 2208ᴾ | <<locked>> | 100% | 49,951 psi | 85% | 2546 fps | 96.9% |
| ADI AR 2219 | <<locked>> | 86% | 50,792 psi | 86% | 2559 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 94% | 51,372 psi | 87% | 2562 fps | 98.9% |
| Alliant AR-Comp | <<locked>> | 96% | 52,794 psi | 90% | 2598 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 90% | 52,692 psi | 90% | 2661 fps | 98.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 98% | 51,387 psi | 87% | 2677 fps | 96.8% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 47,776 psi | 81% | 2559 fps | 98.2% |
| Alliant Reloder-10x | <<locked>> | 90% | 53,113 psi | 90% | 2546 fps | 100% |
| Alliant Reloder-15ᴾ | <<locked>> | 100% | 52,011 psi | 89% | 2621 fps | 97.6% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 42,467 psi | 72% | 2526 fps | 96.1% |
| Alliant Reloder-7 | <<locked>> | 82% | 50,082 psi | 85% | 2448 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 86% | 50,401 psi | 86% | 2457 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 96% | 51,343 psi | 87% | 2605 fps | 96.8% |
| Bofors RP3ᴾ | <<locked>> | 100% | 47,355 psi | 81% | 2562 fps | 98.2% |
| Hodgdon Benchmark | <<locked>> | 92% | 51,082 psi | 87% | 2513 fps | 99.2% |
| Hodgdon BL-C2 | <<locked>> | 96% | 52,707 psi | 90% | 2635 fps | 99.5% |
| Hodgdon CFE223 | <<locked>> | 92% | 51,256 psi | 87% | 2664 fps | 97.5% |
| Hodgdon H322 | <<locked>> | 90% | 52,663 psi | 90% | 2585 fps | 100% |
| Hodgdon H335 | <<locked>> | 88% | 50,270 psi | 86% | 2562 fps | 99.9% |
| Hodgdon H380ᴾ | <<locked>> | 100% | 49,748 psi | 85% | 2569 fps | 95.6% |
| Hodgdon H4198 | <<locked>> | 82% | 50,633 psi | 86% | 2457 fps | 100% |
| Hodgdon H4895 | <<locked>> | 96% | 52,388 psi | 89% | 2612 fps | 98.6% |
| Hodgdon LEVERevolution | <<locked>> | 98% | 50,444 psi | 86% | 2631 fps | 98.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,388 psi | 57% | 1526 fps | 100% |
| Hodgdon VARGET | <<locked>> | 96% | 50,807 psi | 86% | 2569 fps | 98.3% |
| IMR 3031 | <<locked>> | 96% | 50,270 psi | 86% | 2608 fps | 100% |
| IMR 4064ᴾ | <<locked>> | 100% | 52,562 psi | 89% | 2575 fps | 97.6% |
| IMR 4198 | <<locked>> | 88% | 51,039 psi | 87% | 2474 fps | 100% |
| IMR 4895 | <<locked>> | 98% | 50,096 psi | 85% | 2608 fps | 97.9% |
| IMR 8208 XBR | <<locked>> | 94% | 51,372 psi | 87% | 2562 fps | 98.9% |
| Lovex D073.4 | <<locked>> | 84% | 51,866 psi | 88% | 2566 fps | 99.7% |
| Lovex D073.5 | <<locked>> | 90% | 51,401 psi | 88% | 2556 fps | 99.4% |
| Lovex D073.6 | <<locked>> | 96% | 49,588 psi | 84% | 2575 fps | 99.7% |
| Lovex S060 | <<locked>> | 94% | 50,299 psi | 86% | 2500 fps | 97.7% |
| Lovex S062ᴾ | <<locked>> | 100% | 51,024 psi | 87% | 2572 fps | 99% |
| Norma 200 | <<locked>> | 84% | 50,227 psi | 86% | 2487 fps | 100% |
| Norma 201 | <<locked>> | 96% | 50,604 psi | 86% | 2552 fps | 98.9% |
| Norma 202 | <<locked>> | 96% | 51,010 psi | 87% | 2572 fps | 99.9% |
| Norma 203Bᴾ | <<locked>> | 100% | 50,995 psi | 87% | 2608 fps | 98% |
| Ramshot Big Gameᴾ | <<locked>> | 100% | 51,982 psi | 88% | 2638 fps | 97.8% |
| Ramshot Wild Boar | <<locked>> | 94% | 51,126 psi | 87% | 2592 fps | 97.8% |
| Ramshot X-Terminator | <<locked>> | 90% | 50,270 psi | 86% | 2523 fps | 97.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,620 psi | 57% | 1565 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 90% | 51,430 psi | 88% | 2559 fps | 99.6% |
| ReloadSwiss RS 52 | <<locked>> | 98% | 51,793 psi | 88% | 2680 fps | 97.5% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 45,440 psi | 77% | 2602 fps | 99.1% |
| Rottweil R 901 | <<locked>> | 94% | 51,924 psi | 88% | 2549 fps | 99.9% |
| Rottweil R 902 | <<locked>> | 98% | 51,053 psi | 87% | 2549 fps | 98.9% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 43,859 psi | 75% | 2497 fps | 97.2% |
| Shooters World AR Plus | <<locked>> | 84% | 51,866 psi | 88% | 2566 fps | 99.7% |
| Shooters World Match Rifle | <<locked>> | 96% | 49,588 psi | 84% | 2575 fps | 99.7% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 51,024 psi | 87% | 2572 fps | 99% |
| Shooters World Tactical Rifle | <<locked>> | 88% | 52,272 psi | 89% | 2536 fps | 98.7% |
| SNPE Vectan BA6 1/2 | <<locked>> | 84% | 53,055 psi | 90% | 2251 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 86% | 51,097 psi | 87% | 2566 fps | 99.9% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 46,644 psi | 79% | 2562 fps | 96.9% |
| SNPE Vectan SP 3 | <<locked>> | 88% | 51,256 psi | 87% | 2523 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 96% | 50,256 psi | 86% | 2569 fps | 97.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 94% | 50,546 psi | 86% | 2477 fps | 99.9% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 49,298 psi | 84% | 2467 fps | 100% |
| Somchem S321 | <<locked>> | 92% | 52,910 psi | 90% | 2605 fps | 99.3% |
| Somchem S335 | <<locked>> | 96% | 52,083 psi | 89% | 2516 fps | 100% |
| Somchem S341 | <<locked>> | 96% | 52,576 psi | 90% | 2589 fps | 97.9% |
| Somchem S355ᴾ | <<locked>> | 100% | 45,701 psi | 78% | 2513 fps | 97.4% |
| Vihtavuori N120 | <<locked>> | 84% | 52,083 psi | 89% | 2431 fps | 100% |
| Vihtavuori N130 | <<locked>> | 90% | 50,589 psi | 86% | 2464 fps | 100% |
| Vihtavuori N133 | <<locked>> | 94% | 50,111 psi | 85% | 2470 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 52,185 psi | 89% | 2572 fps | 100% |
| Vihtavuori N140 | <<locked>> | 98% | 51,010 psi | 87% | 2546 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 43,540 psi | 74% | 2451 fps | 98.1% |
| Vihtavuori N530 | <<locked>> | 94% | 52,112 psi | 89% | 2566 fps | 99% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 52,547 psi | 89% | 2585 fps | 100% |
| Winchester 748 | <<locked>> | 94% | 50,357 psi | 86% | 2605 fps | 99.4% |
| Winchester StaBALL Match | <<locked>> | 98% | 52,808 psi | 90% | 2625 fps | 98.6% |
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 2015 | <<locked>> | 80% | 34,360 psi | 58% | 2241 fps | 99.6% |
| Accurate 2200 | <<locked>> | 80% | 44,889 psi | 76% | 2464 fps | 95.7% |
| Accurate 2230 | <<locked>> | 80% | 44,512 psi | 76% | 2467 fps | 96% |
| Accurate 2460 | <<locked>> | 80% | 36,927 psi | 63% | 2316 fps | 98.2% |
| Accurate 2495 | <<locked>> | 80% | 26,905 psi | 46% | 2139 fps | 98.3% |
| Accurate 2520 | <<locked>> | 80% | 32,430 psi | 55% | 2260 fps | 96.5% |
| Accurate 4064 | <<locked>> | 80% | 25,541 psi | 43% | 2113 fps | 95% |
| Accurate LT-30 | <<locked>> | 80% | 42,815 psi | 73% | 2323 fps | 99.8% |
| Accurate LT-32 | <<locked>> | 80% | 43,163 psi | 73% | 2336 fps | 98.9% |
| ADI AR 2206H | <<locked>> | 88% | 40,770 psi | 69% | 2411 fps | 95.6% |
| ADI AR 2207 | <<locked>> | 80% | 46,122 psi | 79% | 2395 fps | 100% |
| ADI AR 2208 | <<locked>> | 96% | 43,859 psi | 75% | 2448 fps | 95.5% |
| ADI AR 2219 | <<locked>> | 80% | 41,191 psi | 70% | 2411 fps | 99.6% |
| ADI Benchmark 8208 | <<locked>> | 82% | 35,766 psi | 61% | 2287 fps | 95.5% |
| Alliant AR-Comp | <<locked>> | 80% | 31,401 psi | 53% | 2257 fps | 100% |
| Alliant Power Pro 1200-R | 21.2 gr | 80% | 37,782 psi | 64% | 2402 fps | 95.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 94% | 45,121 psi | 77% | 2569 fps | 95.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 34,954 psi | 60% | 2326 fps | 95% |
| Alliant Reloder-10x | <<locked>> | 80% | 39,204 psi | 67% | 2339 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 43,033 psi | 73% | 2474 fps | 95.6% |
| Alliant Reloder-17 | <<locked>> | 98% | 40,074 psi | 68% | 2480 fps | 95.2% |
| Alliant Reloder-7 | <<locked>> | 80% | 47,224 psi | 80% | 2408 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 41,249 psi | 70% | 2320 fps | 99.8% |
| Baschieri & Pellagri 107 | <<locked>> | 92% | 45,252 psi | 77% | 2507 fps | 95.4% |
| Bofors RP3 | <<locked>> | 92% | 36,448 psi | 62% | 2372 fps | 95.6% |
| Hodgdon Benchmark | <<locked>> | 80% | 35,766 psi | 61% | 2247 fps | 96.2% |
| Hodgdon BL-C2 | <<locked>> | 82% | 33,040 psi | 56% | 2290 fps | 95.4% |
| Hodgdon CFE223 | 24.9 gr | 86% | 42,018 psi | 72% | 2503 fps | 95.2% |
| Hodgdon H322 | <<locked>> | 80% | 37,753 psi | 64% | 2349 fps | 99.2% |
| Hodgdon H335 | <<locked>> | 80% | 38,276 psi | 65% | 2362 fps | 98.6% |
| Hodgdon H380 | <<locked>> | 98% | 46,833 psi | 80% | 2526 fps | 95% |
| Hodgdon H4198 | <<locked>> | 80% | 47,166 psi | 80% | 2405 fps | 99.9% |
| Hodgdon H4895 | <<locked>> | 86% | 38,130 psi | 65% | 2369 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 36,492 psi | 62% | 2379 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,077 psi | 43% | 1368 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 39,639 psi | 67% | 2379 fps | 95.8% |
| IMR 3031 | <<locked>> | 80% | 30,095 psi | 51% | 2238 fps | 98.2% |
| IMR 4064 | <<locked>> | 92% | 40,886 psi | 70% | 2388 fps | 95% |
| IMR 4198 | <<locked>> | 80% | 40,364 psi | 69% | 2316 fps | 100% |
| IMR 4895 | <<locked>> | 90% | 39,059 psi | 66% | 2415 fps | 95.3% |
| IMR 8208 XBR | <<locked>> | 82% | 35,766 psi | 61% | 2287 fps | 95.5% |
| Lovex D073.4 | <<locked>> | 80% | 45,310 psi | 77% | 2467 fps | 99.1% |
| Lovex D073.5 | <<locked>> | 80% | 36,753 psi | 63% | 2313 fps | 96.9% |
| Lovex D073.6 | <<locked>> | 80% | 29,153 psi | 50% | 2195 fps | 95.2% |
| Lovex S060 | <<locked>> | 86% | 39,494 psi | 67% | 2316 fps | 95.2% |
| Lovex S062 | <<locked>> | 88% | 35,360 psi | 60% | 2300 fps | 95.6% |
| Norma 200 | <<locked>> | 80% | 44,556 psi | 76% | 2405 fps | 100% |
| Norma 201 | <<locked>> | 84% | 34,983 psi | 60% | 2274 fps | 95.4% |
| Norma 202 | <<locked>> | 80% | 30,748 psi | 52% | 2205 fps | 96.6% |
| Norma 203B | <<locked>> | 92% | 39,755 psi | 68% | 2421 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 94% | 42,670 psi | 73% | 2484 fps | 95.7% |
| Ramshot Wild Boar | <<locked>> | 86% | 39,117 psi | 67% | 2388 fps | 95% |
| Ramshot X-Terminator | <<locked>> | 84% | 41,466 psi | 71% | 2379 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,961 psi | 42% | 1398 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 37,376 psi | 64% | 2323 fps | 97.5% |
| ReloadSwiss RS 52 | 25.2 gr | 92% | 42,163 psi | 72% | 2520 fps | 95.3% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 32,909 psi | 56% | 2329 fps | 95.1% |
| Rottweil R 901 | <<locked>> | 80% | 34,505 psi | 59% | 2247 fps | 97.5% |
| Rottweil R 902 | <<locked>> | 86% | 35,375 psi | 60% | 2277 fps | 95.5% |
| Rottweil R 903 | <<locked>> | 94% | 36,376 psi | 62% | 2362 fps | 95.2% |
| Shooters World AR Plus | <<locked>> | 80% | 45,310 psi | 77% | 2467 fps | 99.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 29,153 psi | 50% | 2195 fps | 95.2% |
| Shooters World Precision | <<locked>> | 88% | 35,360 psi | 60% | 2300 fps | 95.6% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 39,697 psi | 68% | 2333 fps | 96.3% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 47,630 psi | 81% | 2185 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 41,901 psi | 71% | 2421 fps | 99.1% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 41,075 psi | 70% | 2461 fps | 95.3% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 40,030 psi | 68% | 2352 fps | 99.8% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 38,914 psi | 66% | 2375 fps | 95% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 32,967 psi | 56% | 2175 fps | 97.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 26,701 psi | 45% | 2047 fps | 96.1% |
| Somchem S321 | <<locked>> | 80% | 35,128 psi | 60% | 2300 fps | 95.7% |
| Somchem S335 | <<locked>> | 80% | 32,343 psi | 55% | 2178 fps | 97.9% |
| Somchem S341 | <<locked>> | 88% | 40,074 psi | 68% | 2388 fps | 95.2% |
| Somchem S355 | <<locked>> | 94% | 37,753 psi | 64% | 2372 fps | 95.3% |
| Vihtavuori N120 | <<locked>> | 80% | 46,108 psi | 78% | 2352 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 37,550 psi | 64% | 2260 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 32,837 psi | 56% | 2185 fps | 99.3% |
| Vihtavuori N135 | <<locked>> | 80% | 27,818 psi | 47% | 2149 fps | 98.4% |
| Vihtavuori N140 | <<locked>> | 80% | 28,993 psi | 49% | 2146 fps | 96.3% |
| Vihtavuori N150 | <<locked>> | 92% | 33,707 psi | 57% | 2267 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 82% | 35,360 psi | 60% | 2280 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 80% | 27,804 psi | 47% | 2129 fps | 95.1% |
| Winchester 748 | <<locked>> | 80% | 31,720 psi | 54% | 2254 fps | 95.1% |
| Winchester StaBALL Match | <<locked>> | 88% | 37,869 psi | 64% | 2375 fps | 95.4% |
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 85 powders for 6 x 47 ATZL loaded with the .243 | 105gr | Speer RN. ReloadSwiss RS 52 delivers the highest muzzle velocity at 2,680 fps; across all powders the maximum-charge window runs from 1,526 fps to 2,680 fps. Accurate 2495 gives the best case fill at 100 %, and 85 of the 85 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (405 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 105.0 gr projectile in 0.243" calls for a 1:12.0 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. ReloadSwiss RS 52, Hodgdon CFE223, Alliant Power Pro 1200-R rank at the top here: for 6 x 47 ATZL with the .243 | 105gr | Speer 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.