Winchester USA 55 gr Full Metal Jacket

.223 Rem · 55 gr · USA · #W223K. Maker-published figures, velocity measured in a 24″ barrel. Below: the drop chart, the wind, the energy, and how far it is an ethical hunting load — then shoot it.

Shoot this load through the glass →Hunt with it

G1 BC: 0.269maker G1
Muzzle velocity: 3,240 fps24″ test barrel · ~25 fps per inch
Muzzle energy: 1,282 ft·lb55 gr at 3,240 fps
Transonic: 650 ydMach 1.2 — where the solver stops being sure
500 yd: 2.8 mil331 ft·lb on arrival
Twist: 1:8typical factory twist for the solve

Drop chart · 100 yd zero · 10 mph full-value wind

Range yd	Elev mil	Elev MOA	Drop in	Wind mil	Wind MOA	Wind in	Vel fps	Energy ft·lb	TOF s
50	0.2	0.8	-0.4	0.1	0.4	0.2	3,050	1,136	0.05
100	0.0	0.0	0.0	0.3	0.9	1.0	2,868	1,004	0.10
150	0.1	0.4	-0.6	0.4	1.4	2.2	2,693	885	0.15
200	0.3	1.2	-2.5	0.6	2.0	4.1	2,525	778	0.21
250	0.6	2.2	-5.6	0.7	2.5	6.6	2,363	682	0.27
300	1.0	3.3	-10.4	0.9	3.1	9.8	2,207	595	0.34
350	1.3	4.6	-16.9	1.1	3.8	13.8	2,057	517	0.41
400	1.8	6.1	-25.5	1.3	4.4	18.6	1,913	447	0.48
450	2.3	7.7	-36.5	1.5	5.2	24.3	1,775	385	0.56
500	2.8	9.6	-50.2	1.7	5.9	31.1	1,645	331	0.65
550	3.4	11.7	-67.2	2.0	6.8	39.1	1,524	283	0.75
600	4.1	14.0	-87.9	2.2	7.7	48.2	1,411	243	0.85
650	4.8	16.6	-113.0	2.5	8.6	58.6	1,310	209	0.96
700	5.7	19.5	-143.1	2.8	9.6	70.3	1,220	182	1.08
750	6.6	22.8	-179.1	3.1	10.6	83.3	1,145	160	1.21
800	7.7	26.5	-221.7	3.4	11.6	97.4	1,083	143	1.34
850	8.9	30.5	-271.7	3.7	12.6	112.6	1,034	130	1.48
900	10.2	35.0	-329.9	4.0	13.7	128.7	992	120	1.63
950	11.6	39.9	-396.9	4.3	14.6	145.5	957	112	1.78
1000	13.1	45.2	-473.4	4.5	15.6	163.1	926	105	1.94

Orange rows are transonic (Mach 1.2–1.0), red subsonic. Elevation is the come-up; wind is the bullet's drift for 10 mph at 90°, so halve it for 5 mph and for a 30° wind. The app builds this for your barrel length, your altitude and today's weather, and lets you true the MV against what you actually hit.

Energy on the animal

Max ethical range, vitals shot

Coyote / varmintWrong bulletTarget / varmint construction — not for this animal.

PronghornWrong bulletTarget / varmint construction — not for this animal.

Whitetail deerWrong bulletTarget / varmint construction — not for this animal.

Mule deerWrong bulletTarget / varmint construction — not for this animal.

Wild hogWrong bulletTarget / varmint construction — not for this animal.

Black bearWrong bulletTarget / varmint construction — not for this animal.

ElkWrong bulletTarget / varmint construction — not for this animal.

MooseWrong bulletTarget / varmint construction — not for this animal.

Energy floors: Coyote 250 · Pronghorn 800 · Whitetail 1,000 · Mule 1,000 · Wild 1,000 · Black 1,200 · Elk 1,500 · Moose 1,500 ft·lb (see the sources on each animal in the app). Expansion floor from the bullet family's published minimum impact velocity. A bone-breaking shoulder shot wants a bonded, partition or monolithic bullet regardless of energy.

Same cartridge

All .223 Rem factory loads · best for coyote · best for whitetail · best for wild · best for elk

Source: https://winchester.com/Products/Ammunition/Rifle/USA · 24" per brand-wide statement in Winchester 2026 catalog ("all other ballistic data generat