Load data for .222 Rem. + .224 | 45gr | Sierra VarmintKing

.222 Rem. cartridge drawing
Sierra logo

Load Specifications

Bullet Manufacturer:Sierra
Bullet Weight:45 gr
Bullet Diameter:0.224"
Bullet Length:<<locked>>
Case Length (l3):1.7"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:27.9 Grains of Water
Primer Size:Small Rifle (SR)
Barrel Length:24"
Max. allowed Pressure:53,664 psi

Load data in caliber .222 Rem. with .224 | 45gr | Sierra VarmintKing bullet and 20 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ADI AR 2207, Norma 200 and Alliant Reloder-7.

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>>90%46,470 psi87%3205 fps97.6%
ADI AR 2205<<locked>>82%46,180 psi86%3127 fps100%
ADI AR 2207<<locked>>96%47,181 psi88%3337 fps99.9%
Alliant Reloder-10xᴾ<<locked>>100%44,193 psi82%3291 fps97.4%
Alliant Reloder-7<<locked>>94%46,963 psi88%3278 fps98.3%
Hodgdon TrailBossᴾ<<locked>>100%29,776 psi55%2110 fps100%
IMR 4198ᴾ<<locked>>100%47,137 psi88%3297 fps98.6%
IMR 4227<<locked>>88%45,571 psi85%3215 fps99.2%
Lovex D060<<locked>>82%46,383 psi86%3264 fps98.2%
Lovex D063<<locked>>82%46,818 psi87%3219 fps98.9%
Lovex S053<<locked>>90%47,065 psi88%3235 fps100%
Norma 200<<locked>>98%47,659 psi89%3343 fps98.7%
ReloadSwiss RS 14ᴾ<<locked>>100%29,022 psi54%2149 fps100%
ReloadSwiss RS 36<<locked>>90%47,993 psi89%3297 fps99.5%
Shooters World Buffalo Rifle<<locked>>82%46,383 psi86%3264 fps98.2%
Shooters World SOCOM<<locked>>82%46,818 psi87%3219 fps98.9%
SNPE Vectan BA6 1/2<<locked>>94%47,732 psi89%3091 fps100%
Vihtavuori N110<<locked>>84%46,122 psi86%3169 fps100%
Vihtavuori N120<<locked>>98%46,804 psi87%3278 fps100%
Vihtavuori N130ᴾ<<locked>>100%41,945 psi78%3166 fps96.5%

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

Start Load - Barrel Length: 24"

PowderChargeFRMaxP%V(0)z
Accurate 1680<<locked>>84%37,884 psi71%3022 fps95.4%
ADI AR 2205<<locked>>80%43,671 psi81%3081 fps100%
ADI AR 220717.7 gr80%28,413 psi53%2890 fps96.2%
Alliant Reloder-10x<<locked>>94%36,738 psi68%3123 fps95.2%
Alliant Reloder-719.7 gr86%36,680 psi68%3054 fps95.7%
Hodgdon TrailBoss<<locked>>80%21,712 psi40%1893 fps100%
IMR 4198<<locked>>90%35,433 psi66%3031 fps95.5%
IMR 4227<<locked>>80%35,752 psi67%2999 fps97.3%
Lovex D060<<locked>>80%43,888 psi82%3212 fps97.7%
Lovex D063<<locked>>80%43,700 psi81%3156 fps98.4%
Lovex S053<<locked>>80%35,056 psi65%2986 fps99.5%
Norma 20020.4 gr88%34,534 psi64%3054 fps95.4%
ReloadSwiss RS 14<<locked>>80%21,234 psi40%1932 fps100%
ReloadSwiss RS 36<<locked>>80%34,853 psi65%3012 fps96.9%
Shooters World Buffalo Rifle<<locked>>80%43,888 psi82%3212 fps97.7%
Shooters World SOCOM<<locked>>80%43,700 psi81%3156 fps98.4%
SNPE Vectan BA6 1/2<<locked>>80%32,619 psi61%2805 fps100%
Vihtavuori N110<<locked>>80%40,959 psi76%3074 fps100%
Vihtavuori N120<<locked>>80%26,847 psi50%2802 fps96.8%
Vihtavuori N130<<locked>>98%39,653 psi74%3117 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.

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This overview compares 35 powders for .222 Rem. loaded with the .224 | 45gr | Sierra VarmintKing. Norma 200 delivers the highest muzzle velocity at 3,343 fps; across all powders the maximum-charge window runs from 2,110 fps to 3,343 fps. Accurate 2015 gives the best case fill at 100 %, and 35 of the 35 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (370 MPa), the top charges use 54–90 %, leaving at least 10 % headroom. Accurate 2015, Accurate 2460, 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. ADI AR 2207, Norma 200, Alliant Reloder-7 rank at the top here: for .222 Rem. with the .224 | 45gr | Sierra VarmintKing they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2015, Accurate 2460, Accurate LT-30 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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