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Underwood .45-70 Government +P 325gr Xtreme Hunter Ammo
.45-70 Government • Underwood

Underwood .45-70 Government +P 325gr Xtreme Hunter Ammo Ballistics

Brass Case • Xtreme Hunter

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2275
FPS
3736
FT-LBS
.23
BC (G1)
325
GRAINS
Xtreme
BULLET
BRS
CASING

Trajectory by Zero Distance

Solved from this product's advertised 2275 fps, 325gr bullet and G1 BC 0.230, with the sight 1.5" over the bore at standard conditions. Compare every zero for .45-70 Government.

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How to read it: filled circles are the near and far zero, where the bullet's path crosses the line of sight;the triangle is the peak (max ordinate). The shaded band is the 8" vital zone, ±4" either side of the line of sight. The dashed line marks the edge of the hold-dead-on window. The chart is zoomed to where the zero matters; the tables below run to 400 yards.

.45-70 Government 325gr with a 100-yard zero

Zeroed at 100 yards with a 1.5" sight height, this load crosses the line of sight at 39 and 100 yards, peaks +0.4" at 70 yards, and is -7.9" at 200 and -29.1" at 300 yards.

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Underwood .45-70 Government +P 325gr Xtreme Hunter Ammo, 100-yard zero, 1.5" sight height over bore
Range (yd) Drop (in) Drop (MOA) Drop (MIL) Velocity (fps) Energy (ft-lb) Wind drift, 10 mph (in)
0 -1.5" 0.00 0.00 2,275 3,736 0.0
25 -0.4" -1.50 -0.44 2,186 3,449 0.2
50 +0.2" +0.47 +0.14 2,099 3,182 0.5
75 +0.4" +0.50 +0.14 2,015 2,931 1.1
100 0.0" 0.00 0.00 1,933 2,696 2.0
125 -1.0" -0.74 -0.21 1,852 2,477 3.2
150 -2.6" -1.63 -0.48 1,774 2,273 4.7
175 -4.9" -2.65 -0.77 1,699 2,083 6.5
200 -7.9" -3.77 -1.10 1,626 1,909 8.6
225 -11.8" -4.99 -1.45 1,556 1,748 11.1
250 -16.5" -6.31 -1.84 1,489 1,600 14.0
275 -22.3" -7.73 -2.25 1,425 1,465 17.3
300 -29.1" -9.26 -2.69 1,364 1,343 20.9
325 -37.1" -10.89 -3.17 1,307 1,233 25.0
350 -46.3" -12.64 -3.68 1,254 1,135 29.5
375 -57.0" -14.50 -4.22 1,206 1,049 34.5
400 -69.1" -16.49 -4.80 1,162 975 39.8

325gr G1 .230 at 2,275 fps, 1.5" sight height over bore, standard conditions (59°F, sea level), 10 mph full-value crosswind. Positive drop is above the line of sight. Source: Manufacturer's advertised velocity and BC.

.45-70 Government 325gr with a 150-yard zero

Zeroed at 150 yards with a 1.5" sight height, this load crosses the line of sight at 25 and 150 yards, peaks +1.8" at 89 yards, and is -4.5" at 200 and -23.9" at 300 yards.

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Underwood .45-70 Government +P 325gr Xtreme Hunter Ammo, 150-yard zero, 1.5" sight height over bore
Range (yd) Drop (in) Drop (MOA) Drop (MIL) Velocity (fps) Energy (ft-lb) Wind drift, 10 mph (in)
0 -1.5" 0.00 0.00 2,275 3,736 0.0
25 +0.0" +0.14 +0.04 2,186 3,449 0.2
50 +1.1" +2.11 +0.61 2,099 3,182 0.5
75 +1.7" +2.14 +0.62 2,015 2,931 1.1
100 +1.7" +1.64 +0.48 1,933 2,696 2.0
125 +1.2" +0.90 +0.26 1,852 2,477 3.2
150 +0.0" +0.01 0.00 1,774 2,273 4.7
175 -1.9" -1.01 -0.29 1,699 2,083 6.5
200 -4.5" -2.13 -0.62 1,626 1,909 8.6
225 -7.9" -3.35 -0.98 1,556 1,748 11.1
250 -12.2" -4.67 -1.36 1,489 1,600 14.0
275 -17.6" -6.09 -1.77 1,425 1,465 17.3
300 -23.9" -7.62 -2.22 1,364 1,343 20.9
325 -31.5" -9.25 -2.69 1,307 1,233 25.0
350 -40.3" -11.00 -3.20 1,254 1,135 29.5
375 -50.5" -12.86 -3.74 1,206 1,049 34.5
400 -62.2" -14.85 -4.32 1,162 975 39.8

325gr G1 .230 at 2,275 fps, 1.5" sight height over bore, standard conditions (59°F, sea level), 10 mph full-value crosswind. Positive drop is above the line of sight. Source: Manufacturer's advertised velocity and BC.

.45-70 Government 325gr with a 200-yard zero

Zeroed at 200 yards with a 1.5" sight height, this load crosses the line of sight at 18 and 200 yards, peaks +4.1" at 113 yards, and is +0.0" at 200 and -17.2" at 300 yards.

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Underwood .45-70 Government +P 325gr Xtreme Hunter Ammo, 200-yard zero, 1.5" sight height over bore
Range (yd) Drop (in) Drop (MOA) Drop (MIL) Velocity (fps) Energy (ft-lb) Wind drift, 10 mph (in)
0 -1.5" 0.00 0.00 2,275 3,736 0.0
25 +0.6" +2.28 +0.66 2,186 3,449 0.2
50 +2.2" +4.25 +1.24 2,099 3,182 0.5
75 +3.4" +4.28 +1.24 2,015 2,931 1.1
100 +4.0" +3.79 +1.10 1,933 2,696 2.0
125 +4.0" +3.04 +0.89 1,852 2,477 3.2
150 +3.4" +2.15 +0.62 1,774 2,273 4.7
175 +2.1" +1.13 +0.33 1,699 2,083 6.5
200 +0.0" +0.01 0.00 1,626 1,908 8.6
225 -2.9" -1.21 -0.35 1,556 1,747 11.1
250 -6.6" -2.53 -0.74 1,489 1,600 14.0
275 -11.4" -3.95 -1.15 1,425 1,465 17.3
300 -17.2" -5.48 -1.59 1,364 1,343 20.9
325 -24.2" -7.11 -2.07 1,307 1,233 25.0
350 -32.5" -8.86 -2.58 1,254 1,135 29.5
375 -42.1" -10.72 -3.12 1,206 1,049 34.5
400 -53.3" -12.71 -3.70 1,162 975 39.8

325gr G1 .230 at 2,275 fps, 1.5" sight height over bore, standard conditions (59°F, sea level), 10 mph full-value crosswind. Positive drop is above the line of sight. Source: Manufacturer's advertised velocity and BC.

Product Overview

Underwood markets its +P 325-grain Xtreme Hunter for hunting and self-defense. The Xtreme Hunter is a solid one-piece bullet with no lead core. It carries a G1 BC of .23 and leaves the muzzle at 2,275 fps; zeroed at 100 yards, it drops about 8 inches at 200. Underwood loads it to +P pressure and says it is not for antique firearms such as Trapdoor Springfields, so check that your rifle is rated for +P before you buy it.

Compared with Hornady's 325-grain LEVERevolution, the Underwood starts 275 fps faster. From the same 100-yard zero, the Hornady drops about 11 inches at 200 yards, and it kicks about 12 percent less in the same rifle. Compared with Buffalo Bore's 350-grain JFN, which Buffalo Bore also says is not safe in every .45-70 rifle, the Underwood starts 130 fps faster and kicks about 9 percent less.

Buy the Underwood +P if your rifle is rated for +P and you want a flatter path than the LEVERevolution; at 200 yards it still carries 1,909 ft-lbs. Pick the LEVERevolution if you want less recoil from a polymer-tipped bullet that Hornady markets for large game. Pick the Buffalo Bore JFN if you want a heavier bullet and your rifle is on Buffalo Bore's approved list. Underwood also loads the same bullet in a slower 325-grain Xtreme Hunter. For a much heavier bullet, HSM's 430-grain Bear Load, which HSM markets for big game hunting, kicks about 40 percent harder in the same rifle.

Strengths
  • A 10 mph crosswind pushes it about 9 inches sideways at 200 yards, against about 10 for the Hornady LEVERevolution
  • Drops about 4 inches less than the Federal Fusion 300-grain SP at 200 yards from a 100-yard zero
  • Starts 245 fps faster than Underwood's 325-grain Xtreme Hunter without the +P label
Limitations
  • Underwood rules it out for antique firearms such as Trapdoor Springfields, so it needs a rifle rated for +P
  • Kicks about 49 percent more than the Fort Scott Munitions 300-grain TUI in the same rifle
  • Kicks about 43 percent more than the Federal Fusion 300-grain SP in the same rifle

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All Underwood .45-70 Government +P 325gr Xtreme Hunter Ammo Prices

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Price History

Average price across all tracked dealers
$4.90/rd
↑ $0.02 (0.3%) in the last 30D
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