Load data for 5.6 x 50 Mag. + .224 | 45gr | Impala RNFP KO

5.6 x 50 Mag. cartridge drawing
Impala Bullets logo

Load Specifications

Bullet Manufacturer:Impala Bullets
Bullet Weight:45 gr
Bullet Diameter:0.224"
Bullet Length:<<locked>>
Case Length (l3):1.968"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:34 Grains of Water
Primer Size:Small Rifle (SR)
Barrel Length:23.62"
Max. allowed Pressure:55,114 psi
Recommended Twist Rate:1:11.5

Load data in caliber 5.6 x 50 Mag. with .224 | 45gr | Impala RNFP KO bullet and 31 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ADI AR 2219, Alliant Reloder-10x and SNPE Vectan SP 3.

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>>84%49,284 psi89%3330 fps99.3%
Accurate 2015<<locked>>98%49,603 psi90%3412 fps98.7%
Accurate 2460<<locked>>94%49,197 psi89%3402 fps95.9%
Accurate 2495ᴾ<<locked>>100%42,279 psi77%3323 fps97.8%
Accurate LT-30<<locked>>90%49,603 psi90%3330 fps97.5%
ADI AR 2207<<locked>>88%49,095 psi89%3422 fps100%
ADI AR 2219<<locked>>90%47,630 psi86%3425 fps96.9%
Alliant AR-Compᴾ<<locked>>100%48,675 psi88%3501 fps100%
Alliant Reloder-10x<<locked>>92%47,558 psi86%3415 fps99.2%
Alliant Reloder-7<<locked>>86%48,327 psi88%3366 fps99.5%
Baschieri & Pellagri 106<<locked>>90%48,298 psi88%3301 fps97.6%
Hodgdon H322<<locked>>94%49,269 psi89%3458 fps97.2%
Hodgdon H4198<<locked>>86%48,414 psi88%3337 fps96.6%
Hodgdon TrailBossᴾ<<locked>>100%32,343 psi59%2231 fps100%
IMR 3031ᴾ<<locked>>100%46,485 psi84%3465 fps97.5%
IMR 4198<<locked>>92%48,037 psi87%3389 fps99.7%
IMR 4227<<locked>>82%48,457 psi88%3340 fps100%
Lovex S053<<locked>>82%47,297 psi86%3294 fps100%
Norma 200<<locked>>88%47,848 psi87%3396 fps99.6%
Norma 202ᴾ<<locked>>100%47,645 psi86%3409 fps95.9%
ReloadSwiss RS 14ᴾ<<locked>>100%32,343 psi59%2283 fps100%
ReloadSwiss RS 36<<locked>>82%48,269 psi88%3366 fps100%
SNPE Vectan BA6 1/2<<locked>>86%48,501 psi88%3146 fps100%
SNPE Vectan SP 10<<locked>>90%48,240 psi88%3419 fps95.8%
SNPE Vectan SP 3<<locked>>92%47,558 psi86%3402 fps97.7%
SNPE Vectan Tubal 3000<<locked>>98%47,979 psi87%3314 fps95.7%
Somchem S335ᴾ<<locked>>100%49,676 psi90%3366 fps97.2%
Vihtavuori N120<<locked>>88%49,124 psi89%3366 fps100%
Vihtavuori N130<<locked>>94%48,269 psi88%3350 fps99.1%
Vihtavuori N133<<locked>>98%46,876 psi85%3323 fps98.2%
Vihtavuori N135ᴾ<<locked>>100%42,351 psi77%3320 fps97.6%

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%43,337 psi79%3212 fps98.4%
Accurate 2015<<locked>>88%36,883 psi67%3136 fps95.7%
Accurate 2460<<locked>>92%46,122 psi84%3343 fps95.1%
Accurate 2495<<locked>>94%34,809 psi63%3143 fps95.5%
Accurate LT-30<<locked>>84%41,800 psi76%3166 fps95.5%
ADI AR 2207<<locked>>80%38,856 psi71%3209 fps99.8%
ADI AR 221925.5 gr86%41,727 psi76%3297 fps95.2%
Alliant AR-Comp<<locked>>84%30,110 psi55%3025 fps95.7%
Alliant Reloder-10x21.7 gr80%33,054 psi60%3064 fps95.5%
Alliant Reloder-7<<locked>>80%40,321 psi73%3196 fps98.2%
Baschieri & Pellagri 106<<locked>>84%40,219 psi73%3130 fps95.6%
Hodgdon H322<<locked>>90%43,134 psi78%3330 fps95.7%
Hodgdon H4198<<locked>>82%43,004 psi78%3219 fps95.1%
Hodgdon TrailBoss<<locked>>80%23,772 psi43%2001 fps100%
IMR 3031<<locked>>94%38,624 psi70%3278 fps95.1%
IMR 4198<<locked>>80%34,200 psi62%3061 fps96.9%
IMR 4227<<locked>>80%45,281 psi82%3281 fps99.9%
Lovex S053<<locked>>80%44,759 psi81%3245 fps100%
Norma 200<<locked>>80%37,797 psi69%3173 fps97.9%
Norma 202<<locked>>98%44,657 psi81%3346 fps95.1%
ReloadSwiss RS 14<<locked>>80%23,902 psi43%2054 fps100%
ReloadSwiss RS 36<<locked>>80%45,672 psi83%3317 fps99.9%
SNPE Vectan BA6 1/2<<locked>>80%41,611 psi76%3025 fps100%
SNPE Vectan SP 10<<locked>>88%45,295 psi82%3360 fps95%
SNPE Vectan SP 323.4 gr86%39,842 psi72%3232 fps95.7%
SNPE Vectan Tubal 3000<<locked>>96%45,411 psi82%3261 fps95%
Somchem S335<<locked>>94%41,553 psi75%3199 fps95.1%
Vihtavuori N120<<locked>>80%38,870 psi71%3166 fps100%
Vihtavuori N130<<locked>>82%33,779 psi61%3018 fps95.6%
Vihtavuori N133<<locked>>90%37,304 psi68%3114 fps95.7%
Vihtavuori N135<<locked>>94%35,462 psi64%3153 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 31 powders for 5.6 x 50 Mag. loaded with the .224 | 45gr | Impala RNFP KO. Alliant AR-Comp delivers the highest muzzle velocity at 3,501 fps; across all powders the maximum-charge window runs from 2,231 fps to 3,501 fps. Accurate 2495 gives the best case fill at 100 %, and 31 of the 31 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (380 MPa), the top charges use 59–90 %, leaving at least 10 % headroom. The 45.0 gr projectile in 0.224" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. Accurate 2495, Alliant AR-Comp, Hodgdon TrailBoss 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, Alliant Reloder-10x, SNPE Vectan SP 3 rank at the top here: for 5.6 x 50 Mag. with the .224 | 45gr | Impala RNFP KO 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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