Winchester Super-X 120 gr Positive Expanding Point

.25 WSSM · 120 gr · Super-X · #X25WSS. 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: 0.344maker G1
Muzzle velocity: 2,990 fps24″ test barrel · ~22 fps per inch
Muzzle energy: 2,382 ft·lb120 gr at 2,990 fps
Transonic: 750 ydMach 1.2 — where the solver stops being sure
500 yd: 2.9 mil822 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	0.7	-0.4	0.1	0.4	0.2	2,849	2,162	0.05
100	0.0	0.0	0.0	0.2	0.8	0.8	2,712	1,960	0.11
150	0.2	0.5	-0.8	0.4	1.2	1.9	2,580	1,773	0.16
200	0.4	1.4	-2.9	0.5	1.7	3.5	2,451	1,600	0.22
250	0.7	2.5	-6.5	0.6	2.1	5.6	2,326	1,441	0.28
300	1.1	3.7	-11.7	0.8	2.6	8.2	2,205	1,295	0.35
350	1.5	5.1	-18.7	0.9	3.1	11.5	2,087	1,160	0.42
400	1.9	6.6	-27.6	1.1	3.7	15.4	1,973	1,037	0.49
450	2.4	8.2	-38.8	1.2	4.3	20.1	1,862	924	0.57
500	2.9	10.0	-52.5	1.4	4.9	25.5	1,756	822	0.66
550	3.5	12.0	-69.1	1.6	5.5	31.7	1,655	730	0.74
600	4.1	14.1	-88.8	1.8	6.2	38.8	1,558	647	0.84
650	4.8	16.5	-112.1	2.0	6.9	46.9	1,467	574	0.94
700	5.5	19.0	-139.4	2.2	7.6	55.9	1,383	509	1.04
750	6.3	21.8	-171.3	2.4	8.4	65.9	1,305	453	1.15
800	7.2	24.9	-208.3	2.7	9.2	77.0	1,234	406	1.27
850	8.2	28.2	-251.0	2.9	10.0	89.1	1,172	366	1.40
900	9.3	31.8	-300.0	3.2	10.8	102.2	1,119	333	1.53
950	10.4	35.8	-356.0	3.4	11.7	116.1	1,074	307	1.66
1000	11.7	40.1	-419.5	3.6	12.5	130.9	1,035	286	1.81

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 / varmint1,000 ydKeeps 250 ft·lb and expansion velocity to 1,000 yd. Behind the shoulder only — not a bone-breaking bullet.

Pronghorn500 ydKeeps 800 ft·lb and expansion velocity to 500 yd. Behind the shoulder only — not a bone-breaking bullet.

Whitetail deer400 ydKeeps 1,000 ft·lb and expansion velocity to 400 yd. Behind the shoulder only — not a bone-breaking bullet.

Mule deer400 ydKeeps 1,000 ft·lb and expansion velocity to 400 yd. Behind the shoulder only — not a bone-breaking bullet.

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 .25 WSSM factory loads · best for coyote · best for whitetail · best for wild · best for elk

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