Winchester Varmint X Lead Free 55 gr Zinc Core Lead Free Polymer Tip

.243 Win · 55 gr · Varmint X Lead Free · #X243PLF. 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: 0.195maker G1
Muzzle velocity: 3,910 fps24″ test barrel · ~22 fps per inch
Muzzle energy: 1,867 ft·lb55 gr at 3,910 fps
Transonic: 600 ydMach 1.2 — where the solver stops being sure
500 yd: 2.3 mil300 ft·lb on arrival
Twist: 1:10typical 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	0.3	1.1	-0.6	0.1	0.5	0.3	3,605	1,587	0.04
100	0.0	0.0	0.0	0.3	1.1	1.1	3,322	1,347	0.08
150	0.0	0.1	-0.2	0.5	1.6	2.6	3,056	1,141	0.13
200	0.2	0.7	-1.4	0.7	2.3	4.7	2,807	962	0.18
250	0.4	1.4	-3.6	0.9	2.9	7.7	2,571	807	0.24
300	0.7	2.3	-7.2	1.1	3.6	11.4	2,347	672	0.30
350	1.0	3.4	-12.4	1.3	4.4	16.2	2,134	556	0.37
400	1.4	4.6	-19.5	1.5	5.3	22.1	1,932	456	0.44
450	1.8	6.1	-28.9	1.8	6.2	29.3	1,743	371	0.52
500	2.3	7.9	-41.2	2.1	7.3	38.0	1,569	300	0.61
550	2.9	9.9	-57.0	2.4	8.4	48.3	1,411	243	0.71
600	3.6	12.3	-77.2	2.8	9.6	60.4	1,274	198	0.82
650	4.4	15.1	-102.8	3.2	10.9	74.3	1,162	165	0.95
700	5.3	18.4	-134.8	3.6	12.3	89.9	1,076	141	1.08
750	6.5	22.2	-174.3	4.0	13.6	106.9	1,011	125	1.23
800	7.7	26.5	-222.3	4.3	14.9	125.1	960	113	1.38
850	9.1	31.4	-279.7	4.7	16.2	144.4	918	103	1.54
900	10.7	36.9	-347.5	5.1	17.5	164.6	881	95	1.71
950	12.5	42.9	-426.5	5.4	18.7	185.7	848	88	1.88
1000	14.4	49.4	-517.6	5.8	19.8	207.6	817	82	2.06

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 / varmint500 ydKeeps 250 ft·lb and expansion velocity to 500 yd. Behind the shoulder only — not a bone-breaking bullet.

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 .243 Win factory loads · best for coyote · best for whitetail · best for wild · best for elk

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