Federal 123 gr Power-Shok JSP

7.62x39 · 123 gr · Power-Shok · #76239B. 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: 0.274maker G1
Muzzle velocity: 2,350 fps24″ test barrel · ~22 fps per inch
Muzzle energy: 1,508 ft·lb123 gr at 2,350 fps
Transonic: 400 ydMach 1.2 — where the solver stops being sure
500 yd: 6.1 mil362 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	0.0	0.0	0.0	0.2	0.6	0.3	2,197	1,318	0.07
100	0.0	0.0	0.0	0.4	1.3	1.4	2,050	1,148	0.14
150	0.4	1.3	-2.1	0.6	2.1	3.3	1,909	995	0.21
200	0.9	3.1	-6.5	0.8	2.9	6.0	1,774	860	0.29
250	1.5	5.3	-13.8	1.1	3.7	9.7	1,647	740	0.38
300	2.2	7.7	-24.2	1.3	4.6	14.5	1,527	637	0.48
350	3.0	10.5	-38.4	1.6	5.6	20.4	1,416	548	0.58
400	3.9	13.6	-56.9	1.9	6.6	27.5	1,316	473	0.69
450	5.0	17.1	-80.4	2.2	7.6	35.8	1,227	411	0.81
500	6.1	21.0	-109.7	2.5	8.6	45.2	1,152	362	0.93
550	7.4	25.3	-145.6	2.8	9.7	55.7	1,090	324	1.07
600	8.7	30.0	-188.7	3.1	10.7	67.1	1,040	295	1.21
650	10.3	35.3	-240.0	3.4	11.7	79.4	998	272	1.36
700	11.9	40.9	-299.9	3.7	12.6	92.2	963	253	1.51
750	13.7	47.0	-369.2	3.9	13.5	105.7	932	237	1.67
800	15.6	53.5	-448.5	4.2	14.3	119.7	904	223	1.83
850	17.6	60.5	-538.5	4.4	15.1	134.1	878	211	2.00
900	19.7	67.9	-639.8	4.6	15.8	149.0	855	199	2.17
950	22.0	75.7	-753.0	4.8	16.5	164.3	832	189	2.35
1000	24.4	83.9	-878.8	5.0	17.2	180.0	812	180	2.53

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 / varmint700 ydKeeps 250 ft·lb and expansion velocity to 700 yd. Behind the shoulder only — not a bone-breaking bullet.

Pronghorn200 ydKeeps 800 ft·lb and expansion velocity to 200 yd. Behind the shoulder only — not a bone-breaking bullet.

Whitetail deer100 ydKeeps 1,000 ft·lb and expansion velocity to 100 yd. Behind the shoulder only — not a bone-breaking bullet.

Mule deer100 ydKeeps 1,000 ft·lb and expansion velocity to 100 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 7.62x39 factory loads · best for coyote · best for whitetail · best for wild · best for elk

Source: https://www.federalpremium.com/rifle/power-shok/11-76239B.html · 24" test barrel per Federal rifle FAQ (velocities from 24" barrel "in most cases"); not st