Load data for .223 Rem. + .223 | 55gr | SUS-TAC Penmax (HPT)

.223 Rem. cartridge drawing
SUS-TAC logo

Load Specifications

Bullet Manufacturer:SUS-TAC
Bullet Weight:55 gr
Bullet Diameter:0.223"
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:24"
Max. allowed Pressure:55,000 psi
Recommended Twist Rate:1:9.0

Load data in caliber .223 Rem. with .223 | 55gr | SUS-TAC Penmax (HPT) bullet and 33 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon H322, SNPE Vectan SP 3 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: 24"

PowderChargeFRMaxP%V(0)z
Accurate 1680<<locked>>86%47,674 psi87%2999 fps99.5%
Accurate 2015ᴾ<<locked>>100%47,152 psi86%3074 fps98.9%
Accurate 2460<<locked>>98%49,023 psi89%3114 fps96.6%
Accurate 2495ᴾ<<locked>>100%35,128 psi64%2904 fps96.8%
Accurate LT-30<<locked>>92%48,791 psi89%3009 fps97.9%
Accurate LT-32<<locked>>92%49,298 psi90%3015 fps96%
ADI AR 2207<<locked>>90%47,529 psi86%3077 fps100%
ADI AR 2219<<locked>>94%49,023 psi89%3150 fps97.9%
Alliant AR-Compᴾ<<locked>>100%43,178 psi79%3094 fps99.9%
Alliant Reloder-10x<<locked>>96%47,471 psi86%3110 fps99.6%
Alliant Reloder-7<<locked>>90%49,530 psi90%3081 fps99.8%
Baschieri & Pellagri 106<<locked>>92%47,036 psi86%2986 fps98%
Hodgdon H322<<locked>>96%47,065 psi86%3114 fps97.5%
Hodgdon H335<<locked>>96%48,240 psi88%3130 fps96.7%
Hodgdon H4198<<locked>>88%47,282 psi86%3005 fps97%
Hodgdon TrailBossᴾ<<locked>>100%31,430 psi57%1949 fps100%
IMR 3031ᴾ<<locked>>100%41,147 psi75%3058 fps97%
IMR 4198<<locked>>96%49,269 psi90%3097 fps99.9%
IMR 4227<<locked>>84%47,369 psi86%2999 fps100%
Lovex S053<<locked>>86%49,110 psi89%3002 fps100%
Norma 200<<locked>>92%47,906 psi87%3100 fps99.9%
ReloadSwiss RS 14ᴾ<<locked>>100%30,864 psi56%1985 fps100%
ReloadSwiss RS 36<<locked>>84%47,152 psi86%3031 fps100%
Rottweil R 901ᴾ<<locked>>100%46,137 psi84%3058 fps96%
SNPE Vectan BA6 1/2<<locked>>88%47,442 psi86%2815 fps100%
SNPE Vectan SP 10<<locked>>94%49,385 psi90%3146 fps96.9%
SNPE Vectan SP 3<<locked>>96%48,805 psi89%3117 fps98.5%
SNPE Vectan Tubal 3000ᴾ<<locked>>100%46,006 psi84%2986 fps96%
Somchem S335ᴾ<<locked>>100%44,295 psi81%2979 fps96.7%
Vihtavuori N120<<locked>>90%47,674 psi87%3028 fps100%
Vihtavuori N130<<locked>>98%48,457 psi88%3051 fps99.5%
Vihtavuori N133ᴾ<<locked>>100%44,889 psi82%2992 fps98.4%
Vihtavuori N135ᴾ<<locked>>100%37,028 psi67%2923 fps97%

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

Start Load - Barrel Length: 24"

PowderChargeFRMaxP%V(0)z
Accurate 1680<<locked>>80%39,117 psi71%2835 fps98.2%
Accurate 2015<<locked>>88%32,024 psi58%2749 fps95%
Accurate 2460<<locked>>94%42,699 psi78%2995 fps95%
Accurate 2495<<locked>>98%32,634 psi59%2844 fps95.9%
Accurate LT-30<<locked>>84%38,000 psi69%2795 fps95.3%
Accurate LT-32<<locked>>90%46,195 psi84%2959 fps95.3%
ADI AR 2207<<locked>>80%34,490 psi63%2822 fps99.7%
ADI AR 221922 gr88%40,001 psi73%2969 fps95.6%
Alliant AR-Comp<<locked>>86%27,630 psi50%2694 fps95.6%
Alliant Reloder-10x<<locked>>80%28,848 psi52%2684 fps95%
Alliant Reloder-7<<locked>>80%35,911 psi65%2808 fps97.9%
Baschieri & Pellagri 106<<locked>>84%36,172 psi66%2766 fps95.1%
Hodgdon H32221.8 gr90%38,957 psi71%2946 fps95.3%
Hodgdon H335<<locked>>92%42,250 psi77%3012 fps95.2%
Hodgdon H4198<<locked>>84%41,945 psi76%2900 fps95.7%
Hodgdon TrailBoss<<locked>>80%22,742 psi41%1739 fps100%
IMR 3031<<locked>>96%36,463 psi66%2946 fps95.4%
IMR 4198<<locked>>80%31,154 psi57%2700 fps96.8%
IMR 4227<<locked>>80%41,756 psi76%2897 fps99.9%
Lovex S053<<locked>>80%41,205 psi75%2864 fps100%
Norma 200<<locked>>80%32,808 psi60%2779 fps97.4%
ReloadSwiss RS 14<<locked>>80%22,887 psi42%1788 fps100%
ReloadSwiss RS 36<<locked>>80%41,220 psi75%2920 fps99.8%
Rottweil R 901<<locked>>98%43,192 psi79%3002 fps95.2%
SNPE Vectan BA6 1/2<<locked>>80%38,174 psi69%2664 fps100%
SNPE Vectan SP 10<<locked>>90%43,308 psi79%3031 fps95.4%
SNPE Vectan SP 319.7 gr86%35,636 psi65%2844 fps95.3%
SNPE Vectan Tubal 3000<<locked>>98%42,960 psi78%2927 fps95.2%
Somchem S335<<locked>>96%38,841 psi71%2867 fps95.2%
Vihtavuori N120<<locked>>80%34,693 psi63%2785 fps100%
Vihtavuori N130<<locked>>82%29,849 psi54%2648 fps95.1%
Vihtavuori N133<<locked>>90%33,040 psi60%2736 fps95.1%
Vihtavuori N135<<locked>>96%32,750 psi60%2818 fps95.5%

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 33 powders for .223 Rem. loaded with the .223 | 55gr | SUS-TAC Penmax (HPT). ADI AR 2219 delivers the highest muzzle velocity at 3,150 fps; across all powders the maximum-charge window runs from 1,949 fps to 3,150 fps. Accurate 2015 gives the best case fill at 100 %, and 33 of the 33 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (379 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 55.0 gr projectile in 0.223" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. Accurate 2015, Accurate 2495, Alliant AR-Comp 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. Hodgdon H322, SNPE Vectan SP 3, ADI AR 2219 rank at the top here: for .223 Rem. with the .223 | 55gr | SUS-TAC Penmax (HPT) 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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