Load data for 5.56 x 45 NATO + .222 | 52gr | Frontier PH Phlanx

5.56 x 45 NATO cartridge drawing
Frontier Bullets logo

Load Specifications

Bullet Manufacturer:Frontier Bullets
Bullet Weight:52 gr
Bullet Diameter:0.222"
Bullet Length:<<locked>>
Case Length (l3):1.759"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:30 Grains of Water
Primer Size:Small Rifle (SR)
Barrel Length:20"
Max. allowed Pressure:62,366 psi
Recommended Twist Rate:1:7.5

Load data in caliber 5.56 x 45 NATO with .222 | 52gr | Frontier PH Phlanx bullet and 29 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-7, ADI AR 2207 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: 20"

PowderChargeFRMaxP%V(0)z
Accurate 1680<<locked>>92%54,259 psi87%3045 fps99.1%
Accurate 2015ᴾ<<locked>>100%42,351 psi68%2920 fps96%
Accurate LT-30<<locked>>98%53,940 psi86%3031 fps96.9%
Accurate No. 11 FS<<locked>>82%56,188 psi90%3071 fps100%
ADI APS 450<<locked>>82%55,492 psi89%2392 fps100%
ADI AR 2205<<locked>>86%56,347 psi90%2989 fps100%
ADI AR 2207<<locked>>98%55,753 psi89%3163 fps100%
ADI AR 2219ᴾ<<locked>>100%55,187 psi88%3182 fps97%
Alliant AR-Compᴾ<<locked>>100%39,566 psi63%2943 fps97.7%
Alliant Reloder-10xᴾ<<locked>>100%49,037 psi79%3077 fps98.5%
Alliant Reloder-7<<locked>>96%55,042 psi88%3114 fps99.5%
Baschieri & Pellagri 106ᴾ<<locked>>100%56,159 psi90%3068 fps97.7%
Hodgdon H4198<<locked>>94%52,750 psi85%3035 fps96.1%
Hodgdon TrailBossᴾ<<locked>>100%30,385 psi49%1909 fps100%
IMR 4198ᴾ<<locked>>100%51,155 psi82%3074 fps99.4%
IMR 4227<<locked>>92%55,854 psi90%3087 fps100%
Lovex D060<<locked>>84%52,779 psi85%3081 fps99.4%
Lovex S053<<locked>>92%54,317 psi87%3045 fps100%
Norma 200ᴾ<<locked>>100%56,101 psi90%3176 fps99.7%
ReloadSwiss RS 14ᴾ<<locked>>100%30,284 psi49%1959 fps100%
ReloadSwiss RS 36<<locked>>92%55,912 psi90%3123 fps100%
Shooters World Buffalo Rifle<<locked>>84%52,779 psi85%3081 fps99.4%
Shooters World SOCOM<<locked>>84%54,041 psi87%3048 fps99.8%
SNPE Vectan BA6 1/2<<locked>>96%54,636 psi88%2894 fps100%
SNPE Vectan SP 10ᴾ<<locked>>100%55,332 psi89%3173 fps95.8%
SNPE Vectan SP 3ᴾ<<locked>>100%50,720 psi81%3087 fps97.1%
Vihtavuori N110<<locked>>88%56,391 psi90%3002 fps100%
Vihtavuori N120<<locked>>98%55,811 psi89%3114 fps100%
Vihtavuori N130ᴾ<<locked>>100%47,747 psi77%2982 fps98.1%

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

Start Load - Barrel Length: 20"

PowderChargeFRMaxP%V(0)z
Accurate 1680<<locked>>80%36,303 psi58%2710 fps95.3%
Accurate 2015<<locked>>98%39,987 psi64%2871 fps95.3%
Accurate LT-30<<locked>>94%47,703 psi76%2927 fps95.6%
Accurate No. 11 FS<<locked>>80%52,489 psi84%3018 fps100%
ADI APS 450<<locked>>80%53,882 psi86%2369 fps100%
ADI AR 2205<<locked>>80%47,094 psi76%2851 fps100%
ADI AR 220717.4 gr80%31,647 psi51%2694 fps97.7%
ADI AR 2219<<locked>>96%47,863 psi77%3054 fps95.3%
Alliant AR-Comp<<locked>>94%32,474 psi52%2759 fps95%
Alliant Reloder-10x<<locked>>90%35,795 psi57%2805 fps95.2%
Alliant Reloder-718.4 gr82%35,244 psi57%2730 fps95.6%
Baschieri & Pellagri 106<<locked>>94%46,137 psi74%2907 fps95.6%
Hodgdon H4198<<locked>>92%49,951 psi80%2989 fps95.4%
Hodgdon TrailBoss<<locked>>80%22,524 psi36%1719 fps100%
IMR 4198<<locked>>86%34,229 psi55%2720 fps95.6%
IMR 4227<<locked>>80%38,928 psi62%2785 fps98.4%
Lovex D060<<locked>>80%47,297 psi76%2982 fps98.7%
Lovex S053<<locked>>80%38,290 psi61%2766 fps99.9%
Norma 20019.1 gr84%33,721 psi54%2740 fps95.4%
ReloadSwiss RS 14<<locked>>80%22,147 psi36%1755 fps100%
ReloadSwiss RS 36<<locked>>80%38,435 psi62%2805 fps98.2%
Shooters World Buffalo Rifle<<locked>>80%47,297 psi76%2982 fps98.7%
Shooters World SOCOM<<locked>>80%47,674 psi76%2943 fps99.3%
SNPE Vectan BA6 1/2<<locked>>80%35,331 psi57%2585 fps100%
SNPE Vectan SP 10<<locked>>98%51,532 psi83%3110 fps95%
SNPE Vectan SP 3<<locked>>96%44,657 psi72%2976 fps95.6%
Vihtavuori N110<<locked>>80%44,599 psi72%2828 fps100%
Vihtavuori N120<<locked>>80%31,836 psi51%2671 fps98.8%
Vihtavuori N130<<locked>>92%37,101 psi59%2769 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 46 powders for 5.56 x 45 NATO loaded with the .222 | 52gr | Frontier PH Phlanx. ADI AR 2219 delivers the highest muzzle velocity at 3,182 fps; across all powders the maximum-charge window runs from 1,909 fps to 3,182 fps. Accurate 2015 gives the best case fill at 100 %, and 46 of the 46 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (430 MPa), the top charges use 49–90 %, leaving at least 10 % headroom. The 52.0 gr projectile in 0.222" calls for a 1:7.5 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. Alliant Reloder-7, ADI AR 2207, Norma 200 rank at the top here: for 5.56 x 45 NATO with the .222 | 52gr | Frontier PH Phlanx they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2460, Accurate 2495, Accurate LT-32 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.

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