Load data for 6 x 47 ATZL + .243 | 75gr | Peregrine VLR-4

6 x 47 ATZL cartridge drawing
Peregrine logo

Load Specifications

Bullet Manufacturer:Peregrine
Bullet Weight:75 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:1:8.5

Load data in caliber 6 x 47 ATZL with .243 | 75gr | Peregrine VLR-4 bullet and 39 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ADI AR 2219, SNPE Vectan SP 10 and Norma 200.

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>>90%52,199 psi89%2874 fps99.9%
Accurate 2015ᴾ<<locked>>100%44,251 psi75%2835 fps98.6%
Accurate 2460ᴾ<<locked>>100%49,516 psi84%2936 fps96.9%
Accurate 2495ᴾ<<locked>>100%31,734 psi54%2657 fps96%
Accurate LT-30<<locked>>96%52,388 psi89%2871 fps98.6%
Accurate LT-32<<locked>>96%52,939 psi90%2877 fps97%
ADI AR 2205<<locked>>82%51,126 psi87%2743 fps100%
ADI AR 2207<<locked>>94%51,314 psi87%2933 fps100%
ADI AR 2219<<locked>>96%49,472 psi84%2963 fps98.1%
Alliant AR-Compᴾ<<locked>>100%40,596 psi69%2854 fps99.7%
Alliant Reloder-10xᴾ<<locked>>100%50,966 psi87%2969 fps99.9%
Alliant Reloder-7<<locked>>92%50,415 psi86%2894 fps99.9%
Baschieri & Pellagri 106<<locked>>96%50,691 psi86%2861 fps98.6%
Hodgdon H322ᴾ<<locked>>100%50,807 psi86%2982 fps98.3%
Hodgdon H335ᴾ<<locked>>100%52,388 psi89%3009 fps97.7%
Hodgdon H4198<<locked>>92%51,866 psi88%2881 fps98.1%
Hodgdon TrailBossᴾ<<locked>>100%30,763 psi52%1762 fps100%
IMR 3031ᴾ<<locked>>100%38,725 psi66%2818 fps96.5%
IMR 4198<<locked>>98%50,589 psi86%2913 fps100%
IMR 4227<<locked>>88%51,764 psi88%2858 fps100%
Lovex D060<<locked>>82%51,706 psi88%2897 fps100%
Lovex D073.4<<locked>>94%51,024 psi87%2966 fps96.5%
Lovex S053<<locked>>90%52,649 psi90%2844 fps100%
Norma 200<<locked>>96%51,082 psi87%2953 fps100%
ReloadSwiss RS 14ᴾ<<locked>>100%30,589 psi52%1804 fps100%
ReloadSwiss RS 36<<locked>>88%51,227 psi87%2890 fps100%
ReloadSwiss RS 40ᴾ<<locked>>100%50,952 psi87%2956 fps96.3%
Shooters World AR Plus<<locked>>94%51,024 psi87%2966 fps96.5%
Shooters World Buffalo Rifle<<locked>>82%51,706 psi88%2897 fps100%
Shooters World SOCOM<<locked>>82%52,895 psi90%2871 fps100%
SNPE Vectan BA6 1/2<<locked>>92%50,865 psi87%2661 fps100%
SNPE Vectan SP 10<<locked>>96%49,951 psi85%2963 fps97.2%
SNPE Vectan SP 3ᴾ<<locked>>100%52,707 psi90%2982 fps99.2%
Somchem S335ᴾ<<locked>>100%41,524 psi71%2746 fps96.2%
Vihtavuori N110<<locked>>84%52,170 psi89%2753 fps100%
Vihtavuori N120<<locked>>94%51,474 psi88%2884 fps100%
Vihtavuori N130ᴾ<<locked>>100%49,284 psi84%2874 fps99.7%
Vihtavuori N133ᴾ<<locked>>100%42,670 psi73%2766 fps98.2%
Vihtavuori N135ᴾ<<locked>>100%34,737 psi59%2694 fps96.5%

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%37,144 psi63%2605 fps98%
Accurate 2015<<locked>>90%31,807 psi54%2572 fps95.4%
Accurate 2460<<locked>>96%42,815 psi73%2822 fps95.3%
Accurate 2495<<locked>>98%29,559 psi50%2602 fps95.1%
Accurate LT-30<<locked>>84%36,448 psi62%2575 fps95.1%
Accurate LT-32<<locked>>90%44,483 psi76%2733 fps95.1%
ADI AR 2205<<locked>>80%48,646 psi83%2707 fps100%
ADI AR 2207<<locked>>80%32,706 psi56%2589 fps99.6%
ADI AR 221923.2 gr88%37,797 psi64%2733 fps95.2%
Alliant AR-Comp<<locked>>86%26,237 psi45%2477 fps95.3%
Alliant Reloder-10x<<locked>>82%28,906 psi49%2510 fps95.5%
Alliant Reloder-7<<locked>>80%34,360 psi58%2585 fps97.9%
Baschieri & Pellagri 106<<locked>>86%36,782 psi63%2608 fps95.6%
Hodgdon H322<<locked>>92%39,291 psi67%2766 fps95.7%
Hodgdon H335<<locked>>94%42,772 psi73%2838 fps95.5%
Hodgdon H4198<<locked>>84%40,350 psi69%2674 fps95.6%
Hodgdon TrailBoss<<locked>>80%22,568 psi38%1575 fps100%
IMR 3031<<locked>>98%36,318 psi62%2759 fps95.7%
IMR 4198<<locked>>80%29,559 psi50%2470 fps96.6%
IMR 4227<<locked>>80%40,335 psi69%2664 fps99.9%
Lovex D060<<locked>>80%48,588 psi83%2844 fps99.9%
Lovex D073.4<<locked>>92%47,065 psi80%2900 fps95.6%
Lovex S053<<locked>>80%39,262 psi67%2628 fps100%
Norma 20020 gr80%30,429 psi52%2539 fps97%
ReloadSwiss RS 14<<locked>>80%22,133 psi38%1608 fps100%
ReloadSwiss RS 36<<locked>>80%39,711 psi68%2694 fps99.8%
ReloadSwiss RS 40<<locked>>98%47,790 psi81%2904 fps95.6%
Shooters World AR Plus<<locked>>92%47,065 psi80%2900 fps95.6%
Shooters World Buffalo Rifle<<locked>>80%48,588 psi83%2844 fps99.9%
Shooters World SOCOM<<locked>>80%49,023 psi83%2812 fps100%
SNPE Vectan BA6 1/2<<locked>>80%36,912 psi63%2444 fps100%
SNPE Vectan SP 1025.1 gr92%43,453 psi74%2848 fps95.7%
SNPE Vectan SP 3<<locked>>86%33,910 psi58%2615 fps95%
Somchem S335<<locked>>98%39,044 psi66%2697 fps95.5%
Vihtavuori N110<<locked>>80%46,166 psi79%2667 fps100%
Vihtavuori N120<<locked>>80%32,938 psi56%2559 fps100%
Vihtavuori N130<<locked>>84%29,907 psi51%2477 fps95.6%
Vihtavuori N133<<locked>>92%33,083 psi56%2562 fps95.5%
Vihtavuori N135<<locked>>98%32,576 psi55%2641 fps95.8%

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.

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

This overview compares 39 powders for 6 x 47 ATZL loaded with the .243 | 75gr | Peregrine VLR-4. Hodgdon H335 delivers the highest muzzle velocity at 3,009 fps; across all powders the maximum-charge window runs from 1,762 fps to 3,009 fps. Accurate 2015 gives the best case fill at 100 %, and 39 of the 39 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (405 MPa), the top charges use 52–90 %, leaving at least 10 % headroom. The 75.0 gr projectile in 0.243" calls for a 1:8.5 twist; slower twists will usually not stabilise this weight. Accurate 2015, Accurate 2460, Accurate 2495 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. ADI AR 2219, SNPE Vectan SP 10, Norma 200 rank at the top here: for 6 x 47 ATZL with the .243 | 75gr | Peregrine VLR-4 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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