.300 Win Mag Trajectory Calculator

See how .300 Win Mag stacks up in our full caliber comparison chart — energy, drop and recoil for every rifle caliber side by side.

The .300 Winchester Magnum is a flat-shooting powerhouse built for long-range hunting. With a 150-grain bullet at 3,260 fps and a 100-yard zero, expect about 2.4 inches of drop at 200 yards, 9.3 inches at 300 yards, and 21.6 inches at 400 yards. The cartridge retains over 1,790 ft-lbs of energy at 400 yards and 1,485 ft-lbs at 500 yards—more than enough for elk at extended range.

Use the calculator to match your specific load. Click "Modify Calculation" to enter your bullet weight, muzzle velocity, and ballistic coefficient. The .300 Win Mag spans 150-grain speedsters to 220-grain heavyweights, each with different trajectories. You can also factor in wind, shooting angle, and atmospheric conditions.

.300 Win Mag Trajectory Chart

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.300 Win Mag Ballistics Data

Range (yd) Elevation (in) Elevation (MOA) Elevation (MIL) Windage (in) Windage (MOA) Windage (MIL) Time (s) Velocity (fps) Energy (ft-lbs)
0 -1.5 0.0 0.0 0.0 0.0 0.0 0.0 3260.0 3540.64
50 -0.3 0.58 0.168 0.0 0.0 0.0 0.047 3129.84 3263.56
100 0.0 -0.0 -0.0 0.0 0.0 0.0 0.096 3004.07 3006.55
150 -0.66 0.42 0.122 0.0 0.0 0.0 0.147 2881.96 2767.08
200 -2.36 1.13 0.328 0.0 0.0 0.0 0.2 2763.22 2543.77
250 -5.21 1.99 0.578 0.0 0.0 0.0 0.256 2647.61 2335.36
300 -9.29 2.96 0.86 0.0 0.0 0.0 0.314 2534.89 2140.75
350 -14.73 4.02 1.169 0.0 0.0 0.0 0.374 2424.95 1959.08
400 -21.65 5.17 1.503 0.0 0.0 0.0 0.437 2317.66 1789.56
450 -30.18 6.4 1.862 0.0 0.0 0.0 0.504 2213.03 1631.63
500 -40.49 7.73 2.249 0.0 0.0 0.0 0.573 2111.04 1484.71
550 -52.75 9.16 2.664 0.0 0.0 0.0 0.646 2011.81 1348.41
600 -67.16 10.69 3.109 0.0 0.0 0.0 0.722 1915.44 1222.32
650 -83.94 12.33 3.586 0.0 0.0 0.0 0.803 1822.08 1106.06
700 -103.33 14.09 4.1 0.0 0.0 0.0 0.887 1731.94 999.34
750 -125.63 15.99 4.652 0.0 0.0 0.0 0.976 1645.38 901.95
800 -151.13 18.04 5.247 0.0 0.0 0.0 1.07 1562.57 813.44
850 -180.2 20.24 5.888 0.0 0.0 0.0 1.168 1483.68 733.37
900 -213.21 22.62 6.58 0.0 0.0 0.0 1.272 1409.1 661.5
950 -250.6 25.19 7.327 0.0 0.0 0.0 1.381 1339.33 597.62
1000 -292.83 27.96 8.134 0.0 0.0 0.0 1.496 1274.97 541.56

Take this table to the range

The .300 Win Mag reference load above as a wallet-size DOPE card: the same zero, standard conditions, holds in MOA, a 10 mph wind column, and a blank column to write in what the rifle actually does.

Download it as it is, or customize the size (turret cap, armband, index card), the columns, the wind speeds and units.

Customize this card

Print at 100% (“Actual size”). Laminate it or use waterproof paper for the field.

Zeroing the .300 Win Mag

Every table in this section uses the same reference load as the calculator above, 150gr G1 .392 at 3,260 fps, with a 1.5" sight height over the bore, at standard conditions (59°F, sea level, no wind for drop; 10 mph crosswind for drift). A hunting rifle with a scope in standard rings sits about 1.5" over the bore; the zero you choose sets how far you can hold on hair without thinking about the range. Change the bullet, velocity or sight height in the calculator above to solve your own load.

.300 Win Mag zero comparison

.300 Win Mag 150gr reference load zero comparison at 1.5" sight height over bore
100-yd zero 200-yd zero
Near zero 83 yd 40 yd
Far zero 100 yd 200 yd
Max ordinate +0.0" +1.3"
Max ordinate distance 91 yd 122 yd
Hold-dead-on window (8" vital zone, ±4") 0–231 yd 0–277 yd
Sight in at 100 yd 0.0" (0.0 MOA) +1.2" (+1.1 MOA)
Drop at 300 yd -9.3" -5.8"
Drop at 400 yd -21.7" -16.9"
Energy at 300 yd 2,141 ft-lb 2,141 ft-lb
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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 500 yards.

Key terms

Near zero
Where the bullet first climbs up through the line of sight. It starts below the sight, because the sight sits above the barrel.
Far zero
Where it falls back down through the line of sight. A "200-yard zero" is the far zero; the near zero comes with it.
Max ordinate
The highest the bullet gets above the line of sight, between the two crossings. This is what makes a zero shoot high in the middle.
Point blank range (MPBR)
The zero that keeps the whole arc inside a vital zone for the longest distance, so you can aim at the centre and hold dead-on.

.300 Win Mag with a 100-Yard Zero

Zeroed at 100 yards with a 1.5" sight height, the 150gr load first crosses the line of sight at 83 yards, peaks +0.0" at 91 yards, returns to zero at 100, and is -9.3" at 300 and -21.6" at 400 yards.

Download CSV
.300 Win Mag 150gr reference load, 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 3,260 3,541 0.0
25 -0.8" -3.01 -0.87 3,194 3,399 0.1
50 -0.3" -0.58 -0.17 3,130 3,264 0.2
75 0.0" -0.05 -0.01 3,066 3,133 0.4
100 0.0" 0.00 0.00 3,004 3,007 0.7
125 -0.2" -0.16 -0.05 2,943 2,885 1.1
150 -0.7" -0.42 -0.12 2,882 2,767 1.6
175 -1.4" -0.75 -0.22 2,822 2,653 2.2
200 -2.4" -1.13 -0.33 2,763 2,544 2.8
225 -3.6" -1.54 -0.45 2,705 2,438 3.6
250 -5.2" -1.99 -0.58 2,648 2,335 4.5
275 -7.1" -2.46 -0.72 2,591 2,236 5.5
300 -9.3" -2.96 -0.86 2,535 2,141 6.6
325 -11.8" -3.48 -1.01 2,480 2,048 7.8
350 -14.7" -4.02 -1.17 2,425 1,959 9.2
375 -18.0" -4.58 -1.33 2,371 1,873 10.6
400 -21.7" -5.17 -1.50 2,318 1,790 12.2
425 -25.7" -5.77 -1.68 2,265 1,709 13.9
450 -30.2" -6.40 -1.86 2,213 1,632 15.8
475 -35.1" -7.05 -2.05 2,162 1,557 17.7
500 -40.5" -7.73 -2.25 2,111 1,485 19.9

150gr G1 .392 at 3,260 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.

.300 Win Mag with a 200-Yard Zero

Zeroed at 200 yards with a 1.5" sight height, the 150gr load first crosses the line of sight at 40 yards, peaks +1.3" at 122 yards, returns to zero at 200, and is -5.8" at 300 and -16.9" at 400 yards.

Download CSV
.300 Win Mag 150gr reference load, 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 3,260 3,541 0.0
25 -0.5" -1.88 -0.55 3,194 3,399 0.1
50 +0.3" +0.55 +0.16 3,130 3,264 0.2
75 +0.9" +1.08 +0.31 3,066 3,133 0.4
100 +1.2" +1.13 +0.33 3,004 3,007 0.7
125 +1.3" +0.97 +0.28 2,943 2,885 1.1
150 +1.1" +0.71 +0.21 2,882 2,767 1.6
175 +0.7" +0.38 +0.11 2,822 2,653 2.2
200 0.0" 0.00 0.00 2,763 2,544 2.8
225 -1.0" -0.42 -0.12 2,705 2,438 3.6
250 -2.3" -0.86 -0.25 2,648 2,335 4.5
275 -3.8" -1.33 -0.39 2,591 2,236 5.5
300 -5.8" -1.83 -0.53 2,535 2,141 6.6
325 -8.0" -2.35 -0.68 2,480 2,048 7.8
350 -10.6" -2.89 -0.84 2,425 1,959 9.2
375 -13.6" -3.45 -1.00 2,371 1,873 10.6
400 -16.9" -4.04 -1.17 2,318 1,790 12.2
425 -20.7" -4.65 -1.35 2,265 1,709 13.9
450 -24.9" -5.27 -1.53 2,213 1,632 15.8
475 -29.5" -5.93 -1.72 2,162 1,557 17.7
500 -34.6" -6.60 -1.92 2,111 1,485 19.9

150gr G1 .392 at 3,260 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.

Maximum Point Blank Range for the .300 Win Mag

Maximum point blank range (MPBR) is the zero that keeps the bullet inside a vital zone, never more than half its height above or below the line of sight (an 8" zone is ±4"), for as far as possible. Zero at the distance in the table and you can hold dead-on from the muzzle to the far edge of the window.

.300 Win Mag maximum point blank range by vital zone size
Vital zone Zero at Hold dead-on from To (MPBR) Max ordinate Near / far zero CSV
8" (whitetail, pronghorn) 298 yd 0 yd 349 yd +4.0" at 167 yd 26 / 298 yd Download
10" (elk, moose) 325 yd 0 yd 381 yd +5.0" at 180 yd 23 / 325 yd Download

MPBR assumes a centred hold, a level shot and no wind; it is a ceiling, not a licence to skip ranging. The far edge of the window is where the bullet has already fallen half the vital zone.

Stock Up On .300 Win Mag Ammo for the Range

PRODUCT PRICE/RD
$1.44
200 Rounds
$2.03
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$2.27
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$2.31
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$2.41
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