Winchester 255 gr Power-Point

.38-55 Win · 255 gr · Power-Point · #X3855. 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: 0.354maker G1
Muzzle velocity: 1,320 fps24″ test barrel · ~22 fps per inch
Muzzle energy: 986 ft·lb255 gr at 1,320 fps
Transonic: 50 ydMach 1.2 — where the solver stops being sure
500 yd: 15.8 mil471 ft·lb on arrival
Twist: 1:12typical 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	-1.0	-3.6	1.9	0.3	0.9	0.5	1,250	884	0.12
100	0.0	0.0	0.0	0.5	1.8	1.9	1,187	798	0.24
150	1.5	5.1	-8.0	0.8	2.7	4.3	1,133	727	0.37
200	3.2	10.9	-22.9	1.0	3.6	7.5	1,087	669	0.50
250	5.0	17.2	-45.0	1.3	4.4	11.5	1,048	621	0.65
300	7.0	23.9	-75.1	1.5	5.1	16.1	1,014	582	0.79
350	9.0	31.0	-113.6	1.7	5.8	21.4	984	549	0.94
400	11.2	38.5	-161.1	1.9	6.5	27.3	958	520	1.10
450	13.5	46.3	-218.1	2.1	7.1	33.6	934	494	1.25
500	15.8	54.4	-285.0	2.2	7.7	40.5	912	471	1.42
550	18.3	62.9	-362.4	2.4	8.3	47.8	892	450	1.58
600	20.9	71.7	-450.7	2.6	8.8	55.5	872	431	1.75
650	23.5	80.9	-550.5	2.7	9.3	63.6	854	413	1.93
700	26.3	90.3	-662.2	2.9	9.8	72.2	837	397	2.11
750	29.1	100.1	-786.4	3.0	10.3	81.1	821	381	2.29
800	32.1	110.2	-923.6	3.1	10.8	90.4	805	367	2.47
850	35.1	120.7	-1074.2	3.3	11.2	100.0	790	353	2.66
900	38.2	131.4	-1238.9	3.4	11.7	110.1	775	340	2.85
950	41.5	142.5	-1418.1	3.5	12.1	120.4	761	328	3.05
1000	44.8	154.0	-1612.5	3.6	12.5	131.2	748	317	3.25

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.

Pronghorn50 ydKeeps 800 ft·lb and expansion velocity to 50 yd. Behind the shoulder only — not a bone-breaking bullet.

Whitetail deerNot enoughNever carries 1,000 ft·lb inside the table. Behind the shoulder only — not a bone-breaking bullet.

Mule deerNot enoughNever carries 1,000 ft·lb inside the table. 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 .38-55 Win factory loads · best for coyote · best for whitetail · best for wild · best for elk

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