Hornady Custom International 180 gr SP InterLock

.300 Win Mag · 180 gr · Custom International · #8206. 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: 0.452maker G1
Muzzle velocity: 2,959 fps24″ test barrel · ~30 fps per inch
Muzzle energy: 3,499 ft·lb180 gr at 2,959 fps
Transonic: 950 ydMach 1.2 — where the solver stops being sure
500 yd: 2.6 mil1,586 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	0.2	0.7	-0.4	0.1	0.3	0.1	2,852	3,250	0.05
100	0.0	0.0	0.0	0.2	0.6	0.6	2,747	3,017	0.11
150	0.1	0.5	-0.8	0.3	0.9	1.4	2,645	2,797	0.16
200	0.4	1.3	-2.8	0.4	1.2	2.6	2,546	2,590	0.22
250	0.7	2.4	-6.2	0.5	1.6	4.1	2,448	2,395	0.28
300	1.0	3.5	-11.0	0.6	1.9	6.0	2,353	2,212	0.34
350	1.4	4.7	-17.4	0.7	2.3	8.3	2,259	2,040	0.41
400	1.8	6.1	-25.5	0.8	2.6	11.0	2,168	1,879	0.47
450	2.2	7.5	-35.4	0.9	3.0	14.3	2,079	1,727	0.54
500	2.6	9.0	-47.4	1.0	3.4	18.0	1,992	1,586	0.62
550	3.1	10.7	-61.5	1.1	3.9	22.2	1,907	1,454	0.70
600	3.6	12.4	-78.1	1.2	4.3	27.0	1,825	1,331	0.78
650	4.2	14.3	-97.2	1.4	4.7	32.3	1,745	1,217	0.86
700	4.7	16.3	-119.2	1.5	5.2	38.3	1,668	1,111	0.95
750	5.3	18.4	-144.3	1.7	5.7	44.9	1,593	1,014	1.04
800	6.0	20.6	-172.9	1.8	6.2	52.2	1,522	926	1.14
850	6.7	23.1	-205.2	2.0	6.8	60.2	1,454	845	1.24
900	7.5	25.6	-241.6	2.1	7.3	68.9	1,390	772	1.34
950	8.3	28.4	-282.5	2.3	7.9	78.3	1,329	706	1.45
1000	9.1	31.4	-328.4	2.5	8.5	88.5	1,273	647	1.57

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.

Pronghorn850 ydKeeps 800 ft·lb and expansion velocity to 850 yd. Behind the shoulder only — not a bone-breaking bullet.

Whitetail deer750 ydKeeps 1,000 ft·lb and expansion velocity to 750 yd. Behind the shoulder only — not a bone-breaking bullet.

Mule deer750 ydKeeps 1,000 ft·lb and expansion velocity to 750 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 .300 Win Mag factory loads · best for coyote · best for whitetail · best for wild · best for elk

Source: https://www.hornady.com/ammunition/rifle/300-win-mag-180-gr-sp-custom-international · product page is metric: MV 902 m/s (converted to fps); barrel printed as "24cm" (sic; take