Load data for 6 x 47 ATZL + .243 | 90gr | Sierra FMJBT GameKing

6 x 47 ATZL cartridge drawing
Sierra logo

Load Specifications

Bullet Manufacturer:Sierra
Bullet Weight:90 gr
Bullet Diameter:0.243"
Bullet Length:<<locked>>
Case Length (l3):1.85"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:33 Grains of Water
Primer Size:Small Rifle (SR)
Barrel Length:23.62"
Max. allowed Pressure:58,740 psi
Recommended Twist Rate:1:11.0

Load data in caliber 6 x 47 ATZL with .243 | 90gr | Sierra FMJBT GameKing bullet and 66 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are SNPE Vectan SP 10, Vihtavuori N530 and ADI AR 2219.

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"

PowderChargeFRMaxP%V(0)z
Accurate 1680<<locked>>84%51,851 psi88%2644 fps100%
Accurate 2015<<locked>>98%52,576 psi90%2736 fps100%
Accurate 2460<<locked>>94%51,285 psi87%2746 fps99.1%
Accurate 2495ᴾ<<locked>>100%49,980 psi85%2789 fps100%
Accurate 2520ᴾ<<locked>>100%53,069 psi90%2822 fps99.1%
Accurate 4064ᴾ<<locked>>100%40,886 psi70%2641 fps98.3%
Accurate LT-30<<locked>>90%52,402 psi89%2657 fps99.8%
Accurate LT-32<<locked>>90%52,823 psi90%2667 fps99%
ADI AR 2206Hᴾ<<locked>>100%51,329 psi87%2776 fps96.1%
ADI AR 2207<<locked>>88%52,214 psi89%2690 fps100%
ADI AR 2219<<locked>>90%50,836 psi87%2762 fps99.7%
ADI Benchmark 8208<<locked>>98%51,517 psi88%2753 fps97.4%
Alliant AR-Compᴾ<<locked>>100%52,156 psi89%2808 fps100%
Alliant Power Pro 1200-R<<locked>>94%52,344 psi89%2854 fps97.2%
Alliant Reloder-10x<<locked>>94%52,808 psi90%2753 fps100%
Alliant Reloder-7<<locked>>86%51,010 psi87%2664 fps100%
Baschieri & Pellagri 106<<locked>>90%50,807 psi86%2651 fps99.8%
Hodgdon Benchmark<<locked>>96%51,634 psi88%2707 fps98%
Hodgdon BL-C2ᴾ<<locked>>100%52,591 psi90%2828 fps98.2%
Hodgdon H322<<locked>>96%50,836 psi87%2762 fps99.7%
Hodgdon H335<<locked>>90%50,082 psi85%2756 fps99.2%
Hodgdon H4198<<locked>>88%50,778 psi86%2651 fps99.5%
Hodgdon H4895ᴾ<<locked>>100%51,561 psi88%2789 fps96.8%
Hodgdon LEVERevolutionᴾ<<locked>>100%46,659 psi79%2749 fps96%
Hodgdon TrailBossᴾ<<locked>>100%32,489 psi55%1637 fps100%
IMR 3031ᴾ<<locked>>100%44,338 psi75%2720 fps99.6%
IMR 4198<<locked>>92%51,372 psi87%2687 fps100%
IMR 4227<<locked>>82%51,213 psi87%2612 fps100%
IMR 8208 XBR<<locked>>98%51,517 psi88%2753 fps97.4%
Lovex D073.4<<locked>>88%51,808 psi88%2759 fps98.8%
Lovex D073.5<<locked>>94%51,590 psi88%2749 fps98.3%
Lovex D073.6ᴾ<<locked>>100%49,197 psi84%2766 fps98.6%
Lovex S053<<locked>>84%53,113 psi90%2605 fps100%
Lovex S060<<locked>>98%50,285 psi86%2677 fps95.8%
Lovex S062ᴾ<<locked>>100%44,396 psi76%2651 fps96.1%
Norma 200<<locked>>88%49,806 psi85%2687 fps100%
Norma 201ᴾ<<locked>>100%50,430 psi86%2736 fps97.3%
Norma 202ᴾ<<locked>>100%50,096 psi85%2753 fps99.2%
Ramshot Wild Boar<<locked>>98%50,778 psi86%2772 fps95.9%
ReloadSwiss RS 14ᴾ<<locked>>100%32,576 psi55%1680 fps100%
ReloadSwiss RS 36<<locked>>82%51,416 psi88%2651 fps100%
ReloadSwiss RS 40<<locked>>94%51,634 psi88%2753 fps98.7%
Rottweil R 901<<locked>>98%51,343 psi87%2740 fps99.2%
Rottweil R 902ᴾ<<locked>>100%47,398 psi81%2677 fps96.7%
Shooters World AR Plus<<locked>>88%51,808 psi88%2759 fps98.8%
Shooters World Match Rifleᴾ<<locked>>100%49,197 psi84%2766 fps98.6%
Shooters World Precisionᴾ<<locked>>100%44,396 psi76%2651 fps96.1%
Shooters World Tactical Rifle<<locked>>92%52,678 psi90%2723 fps97.2%
SNPE Vectan BA6 1/2<<locked>>86%50,879 psi87%2421 fps100%
SNPE Vectan SP 10<<locked>>90%50,981 psi87%2762 fps99.2%
SNPE Vectan SP 3<<locked>>92%50,995 psi87%2723 fps100%
SNPE Vectan SP 9ᴾ<<locked>>100%50,009 psi85%2749 fps95.7%
SNPE Vectan Tubal 3000<<locked>>98%50,589 psi86%2664 fps99.1%
SNPE Vectan Tubal 5000ᴾ<<locked>>100%43,163 psi73%2562 fps98.9%
Somchem S321<<locked>>96%52,591 psi90%2792 fps97.9%
Somchem S335ᴾ<<locked>>100%52,156 psi89%2710 fps99.7%
Somchem S341ᴾ<<locked>>100%52,837 psi90%2772 fps96.1%
Vihtavuori N120<<locked>>90%51,764 psi88%2635 fps100%
Vihtavuori N130<<locked>>96%52,272 psi89%2690 fps100%
Vihtavuori N133ᴾ<<locked>>100%48,791 psi83%2654 fps100%
Vihtavuori N135ᴾ<<locked>>100%44,889 psi76%2674 fps99.9%
Vihtavuori N140ᴾ<<locked>>100%46,485 psi79%2674 fps99%
Vihtavuori N530<<locked>>96%51,430 psi88%2762 fps97.6%
Vihtavuori N540ᴾ<<locked>>100%46,253 psi79%2697 fps98.6%
Winchester 748<<locked>>96%51,126 psi87%2805 fps98.3%
Winchester StaBALL Match<<locked>>94%52,301 psi89%2802 fps96.9%

Recommended = one of the top powders for this cartridge and bullet combination.

Start Load - Barrel Length: 23.62"

PowderChargeFRMaxP%V(0)z
Accurate 1680<<locked>>80%45,527 psi78%2549 fps100%
Accurate 2015<<locked>>80%29,892 psi51%2316 fps97.2%
Accurate 2460<<locked>>82%34,403 psi59%2438 fps95.6%
Accurate 2495<<locked>>80%25,411 psi43%2283 fps95.6%
Accurate 2520<<locked>>88%34,650 psi59%2497 fps95.2%
Accurate 4064<<locked>>92%31,560 psi54%2444 fps95.6%
Accurate LT-30<<locked>>80%38,493 psi66%2421 fps98.2%
Accurate LT-32<<locked>>80%38,885 psi66%2428 fps96.4%
ADI AR 2206H<<locked>>98%48,399 psi82%2730 fps95.4%
ADI AR 2207<<locked>>80%40,799 psi69%2516 fps100%
ADI AR 221921.9 gr80%36,071 psi61%2493 fps97.4%
ADI Benchmark 8208<<locked>>92%42,685 psi73%2602 fps95.5%
Alliant AR-Comp<<locked>>80%27,311 psi46%2326 fps98.7%
Alliant Power Pro 1200-R<<locked>>90%45,687 psi78%2743 fps95.7%
Alliant Reloder-10x<<locked>>80%34,374 psi59%2431 fps99.2%
Alliant Reloder-7<<locked>>80%42,105 psi72%2523 fps100%
Baschieri & Pellagri 106<<locked>>80%36,738 psi63%2408 fps98%
Hodgdon Benchmark<<locked>>88%40,582 psi69%2513 fps95.6%
Hodgdon BL-C2<<locked>>92%39,769 psi68%2608 fps95.5%
Hodgdon H322<<locked>>80%30,792 psi52%2365 fps95.6%
Hodgdon H335<<locked>>80%35,491 psi60%2484 fps96.2%
Hodgdon H4198<<locked>>80%39,972 psi68%2464 fps98%
Hodgdon H4895<<locked>>96%45,818 psi78%2694 fps95.5%
Hodgdon LEVERevolution<<locked>>98%44,019 psi75%2700 fps95.3%
Hodgdon TrailBoss<<locked>>80%24,337 psi41%1470 fps100%
IMR 3031<<locked>>86%28,877 psi49%2372 fps95.7%
IMR 4198<<locked>>80%35,998 psi61%2425 fps99.8%
IMR 4227<<locked>>80%48,080 psi82%2569 fps100%
IMR 8208 XBR<<locked>>92%42,685 psi73%2602 fps95.5%
Lovex D073.4<<locked>>80%39,392 psi67%2546 fps96.4%
Lovex D073.5<<locked>>86%39,015 psi66%2536 fps95.6%
Lovex D073.6<<locked>>90%34,650 psi59%2497 fps95.2%
Lovex S053<<locked>>80%47,152 psi80%2520 fps100%
Lovex S060<<locked>>96%47,514 psi81%2631 fps95.1%
Lovex S062<<locked>>98%41,800 psi71%2605 fps95.4%
Norma 200<<locked>>80%39,189 psi67%2513 fps100%
Norma 201<<locked>>94%41,669 psi71%2585 fps95.3%
Norma 202<<locked>>86%32,401 psi55%2415 fps95.2%
Ramshot Wild Boar<<locked>>96%47,326 psi81%2717 fps95%
ReloadSwiss RS 14<<locked>>80%24,120 psi41%1503 fps100%
ReloadSwiss RS 36<<locked>>80%48,428 psi82%2608 fps100%
ReloadSwiss RS 40<<locked>>84%37,434 psi64%2500 fps95.6%
Rottweil R 901<<locked>>84%34,084 psi58%2411 fps95.4%
Rottweil R 902<<locked>>96%42,076 psi72%2585 fps95.4%
Shooters World AR Plus<<locked>>80%39,392 psi67%2546 fps96.4%
Shooters World Match Rifle<<locked>>90%34,650 psi59%2497 fps95.2%
Shooters World Precision<<locked>>98%41,800 psi71%2605 fps95.4%
Shooters World Tactical Rifle<<locked>>86%42,888 psi73%2562 fps95%
SNPE Vectan BA6 1/2<<locked>>80%43,468 psi74%2320 fps100%
SNPE Vectan SP 1022.7 gr80%36,709 psi62%2500 fps96.5%
SNPE Vectan SP 3<<locked>>80%35,114 psi60%2441 fps98%
SNPE Vectan SP 9<<locked>>98%47,137 psi80%2703 fps95%
SNPE Vectan Tubal 3000<<locked>>84%32,938 psi56%2339 fps95.2%
SNPE Vectan Tubal 5000<<locked>>88%30,008 psi51%2290 fps95.3%
Somchem S321<<locked>>88%40,118 psi68%2575 fps95.1%
Somchem S335<<locked>>82%30,168 psi51%2293 fps95.2%
Somchem S341<<locked>>98%49,211 psi84%2717 fps95.3%
Vihtavuori N120<<locked>>80%38,551 psi66%2434 fps100%
Vihtavuori N130<<locked>>80%32,285 psi55%2333 fps98.6%
Vihtavuori N133<<locked>>80%26,861 psi46%2208 fps95.8%
Vihtavuori N135<<locked>>82%25,585 psi44%2251 fps95.6%
Vihtavuori N140<<locked>>88%32,097 psi55%2388 fps95.4%
Vihtavuori N53024 gr90%42,264 psi72%2608 fps95.6%
Vihtavuori N540<<locked>>90%33,620 psi57%2448 fps95.4%
Winchester 748<<locked>>88%38,943 psi66%2585 fps95.4%
Winchester StaBALL Match<<locked>>90%45,339 psi77%2690 fps95.3%

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.

<<locked>> you need an access license to unlock this data.

This overview compares 66 powders for 6 x 47 ATZL loaded with the .243 | 90gr | Sierra FMJBT GameKing. Alliant Power Pro 1200-R delivers the highest muzzle velocity at 2,854 fps; across all powders the maximum-charge window runs from 1,637 fps to 2,854 fps. Accurate 2495 gives the best case fill at 100 %, and 66 of the 66 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (405 MPa), the top charges use 55–90 %, leaving at least 10 % headroom. The 90.0 gr projectile in 0.243" calls for a 1:11.0 twist; slower twists will usually not stabilise this weight. Accurate 2495, Accurate 2520, Accurate 4064 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. SNPE Vectan SP 10, Vihtavuori N530, ADI AR 2219 rank at the top here: for 6 x 47 ATZL with the .243 | 90gr | Sierra FMJBT 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.

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