Winchester 300 gr Ballistic Silvertip

.45-70 Govt · 300 gr · Ballistic Silvertip · #SBST4570. 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: 0.191maker G1
Muzzle velocity: 1,880 fps24″ test barrel · ~15 fps per inch
Muzzle energy: 2,354 ft·lb300 gr at 1,880 fps
Transonic: 200 ydMach 1.2 — where the solver stops being sure
500 yd: 12.5 mil498 ft·lb on arrival
Twist: 1:20typical 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	-1.2	0.6	0.4	1.4	0.7	1,691	1,904	0.08
100	0.0	0.0	0.0	0.8	2.9	3.1	1,518	1,534	0.18
150	0.8	2.8	-4.4	1.3	4.6	7.2	1,363	1,237	0.28
200	1.9	6.5	-13.5	1.8	6.3	13.2	1,231	1,010	0.40
250	3.2	10.8	-28.4	2.4	8.1	21.2	1,126	845	0.53
300	4.6	15.9	-50.0	2.9	9.8	30.9	1,048	731	0.66
350	6.3	21.7	-79.6	3.3	11.5	42.0	989	651	0.81
400	8.2	28.2	-118.1	3.8	13.0	54.4	941	590	0.97
450	10.3	35.3	-166.4	4.2	14.4	68.0	900	540	1.13
500	12.5	43.0	-225.4	4.6	15.8	82.5	864	498	1.30
550	15.0	51.4	-296.1	5.0	17.0	98.1	832	461	1.48
600	17.6	60.4	-379.3	5.3	18.2	114.6	802	428	1.66
650	20.3	69.9	-476.1	5.6	19.4	132.1	774	399	1.85
700	23.3	80.1	-587.4	6.0	20.5	150.5	748	373	2.05
750	26.5	91.0	-714.4	6.3	21.6	169.9	723	348	2.25
800	29.8	102.4	-858.0	6.6	22.7	190.2	699	326	2.47
850	33.3	114.5	-1019.6	6.9	23.8	211.4	677	305	2.68
900	37.0	127.4	-1200.3	7.2	24.8	233.7	655	286	2.91
950	41.0	140.9	-1401.5	7.5	25.8	256.9	635	268	3.15
1000	45.1	155.1	-1624.5	7.8	26.8	281.1	615	252	3.39

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.

Pronghorn250 ydKeeps 800 ft·lb and expansion velocity to 250 yd. Behind the shoulder only — not a bone-breaking bullet.

Whitetail deer200 ydKeeps 1,000 ft·lb and expansion velocity to 200 yd. Behind the shoulder only — not a bone-breaking bullet.

Mule deer200 ydKeeps 1,000 ft·lb and expansion velocity to 200 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 .45-70 Govt factory loads · best for coyote · best for whitetail · best for wild · best for elk

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