Load data for 5.56 x 45 NATO + .224 | 55gr | Remington PSP

5.56 x 45 NATO cartridge drawing
Remington logo

Load Specifications

Bullet Manufacturer:Remington
Bullet Weight:55 gr
Bullet Diameter:0.224"
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:1:12.5

Load data in caliber 5.56 x 45 NATO with .224 | 55gr | Remington PSP bullet and 41 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 Hodgdon H335.

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: 20"

PowderChargeFRMaxP%V(0)z
Accurate 1680<<locked>>88%54,070 psi87%3018 fps99.7%
Accurate 2015ᴾ<<locked>>100%50,343 psi81%3035 fps98.9%
Accurate 2460ᴾ<<locked>>100%56,275 psi90%3136 fps97.3%
Accurate 2495ᴾ<<locked>>100%38,130 psi61%2861 fps96.7%
Accurate LT-30<<locked>>94%53,882 psi86%3012 fps98.3%
Accurate LT-32<<locked>>94%54,418 psi87%3022 fps96.5%
ADI APS 450<<locked>>82%56,420 psi90%2395 fps100%
ADI AR 2205<<locked>>82%54,984 psi88%2933 fps100%
ADI AR 2207<<locked>>92%53,519 psi86%3084 fps100%
ADI AR 2219<<locked>>96%55,579 psi89%3166 fps98.4%
Alliant AR-Compᴾ<<locked>>100%46,108 psi74%3054 fps99.8%
Alliant Reloder-10x<<locked>>98%53,722 psi86%3120 fps99.8%
Alliant Reloder-7<<locked>>92%55,854 psi90%3094 fps100%
Baschieri & Pellagri 106<<locked>>96%56,391 psi90%3051 fps98.9%
Hodgdon H322<<locked>>98%53,461 psi86%3133 fps98.1%
Hodgdon H335<<locked>>98%55,724 psi89%3159 fps97.5%
Hodgdon H4198<<locked>>90%53,243 psi85%3025 fps97.6%
Hodgdon TrailBossᴾ<<locked>>100%31,560 psi51%1916 fps100%
IMR 3031ᴾ<<locked>>100%43,918 psi70%3018 fps96.9%
IMR 4198<<locked>>98%55,608 psi89%3114 fps100%
IMR 4227<<locked>>88%56,188 psi90%3058 fps100%
Lovex D060<<locked>>82%55,521 psi89%3097 fps100%
Lovex D073.4<<locked>>92%53,693 psi86%3110 fps96.1%
Lovex S053<<locked>>88%54,520 psi87%3005 fps100%
Norma 200<<locked>>94%54,244 psi87%3107 fps100%
ReloadSwiss RS 14ᴾ<<locked>>100%31,517 psi51%1962 fps100%
ReloadSwiss RS 36<<locked>>88%56,231 psi90%3091 fps100%
ReloadSwiss RS 40<<locked>>98%53,098 psi85%3094 fps95.9%
Rottweil R 901ᴾ<<locked>>100%49,226 psi79%3022 fps95.9%
Shooters World AR Plus<<locked>>92%53,693 psi86%3110 fps96.1%
Shooters World Buffalo Rifle<<locked>>82%55,521 psi89%3097 fps100%
SNPE Vectan BA6 1/2<<locked>>92%54,824 psi88%2851 fps100%
SNPE Vectan SP 10<<locked>>96%56,376 psi90%3166 fps97.5%
SNPE Vectan SP 3<<locked>>98%55,216 psi89%3136 fps99%
SNPE Vectan Tubal 3000ᴾ<<locked>>100%48,936 psi78%2949 fps96%
Somchem S335ᴾ<<locked>>100%46,978 psi75%2936 fps96.6%
Vihtavuori N110<<locked>>84%56,420 psi90%2956 fps100%
Vihtavuori N120<<locked>>92%53,534 psi86%3035 fps100%
Vihtavuori N130ᴾ<<locked>>100%55,042 psi88%3068 fps99.7%
Vihtavuori N133ᴾ<<locked>>100%47,877 psi77%2959 fps98.4%
Vihtavuori N135ᴾ<<locked>>100%39,798 psi64%2887 fps97%

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%41,046 psi66%2789 fps98%
Accurate 2015<<locked>>90%36,361 psi58%2759 fps95.6%
Accurate 2460<<locked>>94%45,643 psi73%2956 fps95%
Accurate 2495<<locked>>98%35,563 psi57%2802 fps95.8%
Accurate LT-30<<locked>>84%39,958 psi64%2756 fps95.1%
Accurate LT-32<<locked>>90%48,631 psi78%2923 fps95.2%
ADI APS 450<<locked>>80%54,955 psi88%2372 fps100%
ADI AR 2205<<locked>>80%52,301 psi84%2897 fps100%
ADI AR 2207<<locked>>80%36,506 psi59%2772 fps99.6%
ADI AR 221923.2 gr88%42,337 psi68%2923 fps95.5%
Alliant AR-Comp<<locked>>86%29,646 psi48%2657 fps95.5%
Alliant Reloder-10x<<locked>>82%32,735 psi52%2694 fps95.5%
Alliant Reloder-7<<locked>>80%38,232 psi61%2769 fps97.8%
Baschieri & Pellagri 106<<locked>>86%40,959 psi66%2785 fps95.8%
Hodgdon H322<<locked>>90%41,234 psi66%2900 fps95.1%
Hodgdon H33525.1 gr92%44,860 psi72%2966 fps95%
Hodgdon H4198<<locked>>84%44,092 psi71%2858 fps95.6%
Hodgdon TrailBoss<<locked>>80%23,250 psi37%1719 fps100%
IMR 3031<<locked>>96%38,580 psi62%2897 fps95.2%
IMR 4198<<locked>>80%32,445 psi52%2648 fps96.4%
IMR 4227<<locked>>80%43,874 psi70%2854 fps99.8%
Lovex D060<<locked>>80%52,127 psi84%3038 fps99.8%
Lovex D073.4<<locked>>90%50,169 psi80%3051 fps95.3%
Lovex S053<<locked>>80%42,844 psi69%2815 fps100%
Norma 200<<locked>>80%34,635 psi56%2726 fps97.1%
ReloadSwiss RS 14<<locked>>80%22,916 psi37%1755 fps100%
ReloadSwiss RS 36<<locked>>80%43,656 psi70%2881 fps99.7%
ReloadSwiss RS 40<<locked>>96%49,835 psi80%3035 fps95.1%
Rottweil R 901<<locked>>98%46,253 psi74%2966 fps95.2%
Shooters World AR Plus<<locked>>90%50,169 psi80%3051 fps95.3%
Shooters World Buffalo Rifle<<locked>>80%52,127 psi84%3038 fps99.8%
SNPE Vectan BA6 1/2<<locked>>80%39,900 psi64%2628 fps100%
SNPE Vectan SP 1024.6 gr90%46,166 psi74%2989 fps95.3%
SNPE Vectan SP 3<<locked>>86%37,782 psi61%2802 fps95.1%
SNPE Vectan Tubal 3000<<locked>>98%45,847 psi74%2894 fps95.2%
Somchem S335<<locked>>96%41,481 psi67%2831 fps95.1%
Vihtavuori N110<<locked>>80%50,053 psi80%2867 fps100%
Vihtavuori N120<<locked>>80%36,680 psi59%2740 fps100%
Vihtavuori N130<<locked>>84%33,504 psi54%2651 fps95.6%
Vihtavuori N133<<locked>>90%35,201 psi56%2700 fps95%
Vihtavuori N135<<locked>>96%34,853 psi56%2772 fps95.2%

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 41 powders for 5.56 x 45 NATO loaded with the .224 | 55gr | Remington PSP. ADI AR 2219 delivers the highest muzzle velocity at 3,166 fps; across all powders the maximum-charge window runs from 1,916 fps to 3,166 fps. Accurate 2015 gives the best case fill at 100 %, and 41 of the 41 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (430 MPa), the top charges use 51–90 %, leaving at least 10 % headroom. The 55.0 gr projectile in 0.224" calls for a 1:12.5 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, Hodgdon H335 rank at the top here: for 5.56 x 45 NATO with the .224 | 55gr | Remington PSP 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.

← All load data