.338 Winchester Magnum Trajectory Calculator

See how .338 Winchester Magnum stacks up in our full caliber comparison chart — energy, drop and recoil for every rifle caliber side by side.

The .338 Winchester Magnum is a hard-hitting big game cartridge trusted by guides and hunters pursuing elk, moose, and brown bear. With a 225-grain bullet at 2,780 fps and a 100-yard zero, expect about 3.8 inches of drop at 200 yards, 13.7 inches at 300 yards, and 30.9 inches at 400 yards. The heavy bullets retain over 2,009 ft-lbs of energy at 400 yards and 1,681 ft-lbs at 500 yards—devastating on large game at any reasonable hunting distance.

Use the calculator to match your specific load. Click "Modify Calculation" to enter your bullet weight, muzzle velocity, and ballistic coefficient. Loads range from 200-grain options for deer to 250-grain bullets for the largest game. You can also factor in wind, shooting angle, and atmospheric conditions.

.338 Winchester Magnum Trajectory Chart

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.338 Winchester Magnum 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 2780.0 3862.14
25 -0.67 2.54 0.739 0.0 0.0 0.0 0.028 2726.98 3716.23
50 -0.14 0.26 0.076 0.0 0.0 0.0 0.055 2674.94 3575.75
75 0.09 -0.11 -0.033 0.0 0.0 0.0 0.084 2623.5 3439.53
100 0.0 -0.0 -0.001 0.0 0.0 0.0 0.113 2572.63 3307.44
125 -0.41 0.31 0.092 0.0 0.0 0.0 0.142 2522.33 3179.38
150 -1.17 0.74 0.216 0.0 0.0 0.0 0.172 2472.6 3055.25
175 -2.28 1.24 0.362 0.0 0.0 0.0 0.203 2423.41 2934.89
200 -3.76 1.8 0.522 0.0 0.0 0.0 0.234 2374.75 2818.22
225 -5.63 2.39 0.695 0.0 0.0 0.0 0.266 2326.64 2705.18
250 -7.9 3.02 0.877 0.0 0.0 0.0 0.298 2279.06 2595.68
275 -10.59 3.67 1.069 0.0 0.0 0.0 0.332 2232.03 2489.65
300 -13.71 4.36 1.269 0.0 0.0 0.0 0.366 2185.51 2386.96
325 -17.29 5.08 1.477 0.0 0.0 0.0 0.4 2139.55 2287.61
350 -21.34 5.82 1.693 0.0 0.0 0.0 0.436 2094.15 2191.56
375 -25.88 6.59 1.917 0.0 0.0 0.0 0.472 2049.31 2098.71
400 -30.95 7.39 2.148 0.0 0.0 0.0 0.509 2005.02 2008.99
425 -36.55 8.21 2.388 0.0 0.0 0.0 0.547 1961.33 1922.37
450 -42.72 9.06 2.636 0.0 0.0 0.0 0.585 1918.23 1838.82
475 -49.48 9.94 2.893 0.0 0.0 0.0 0.625 1875.73 1758.25
500 -56.86 10.86 3.158 0.0 0.0 0.0 0.665 1833.87 1680.64

Take this table to the range

The .338 Winchester Magnum 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.

Available .338 Winchester Magnum Ammunition Ballistics

Zeroing the .338 Winchester Magnum

Every table in this section uses the same reference load as the calculator above, 225gr G1 .435 at 2,780 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.

.338 Winchester Magnum zero comparison

.338 Winchester Magnum 225gr reference load zero comparison at 1.5" sight height over bore
100-yd zero 200-yd zero
Near zero 61 yd 30 yd
Far zero 100 yd 200 yd
Max ordinate +0.1" +2.0"
Max ordinate distance 81 yd 117 yd
Hold-dead-on window (8" vital zone, ±4") 0–203 yd 0–259 yd
Sight in at 100 yd 0.0" (0.0 MOA) +1.9" (+1.8 MOA)
Drop at 300 yd -13.7" -8.1"
Drop at 400 yd -31.0" -23.4"
Energy at 300 yd 2,387 ft-lb 2,387 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.

.338 Winchester Magnum with a 100-Yard Zero

Zeroed at 100 yards with a 1.5" sight height, the 225gr load first crosses the line of sight at 61 yards, peaks +0.1" at 81 yards, returns to zero at 100, and is -13.7" at 300 and -31.0" at 400 yards.

Download CSV
.338 Winchester Magnum 225gr 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 2,780 3,862 0.0
25 -0.7" -2.54 -0.74 2,727 3,716 0.1
50 -0.1" -0.26 -0.08 2,675 3,576 0.2
75 +0.1" +0.11 +0.03 2,623 3,440 0.5
100 0.0" 0.00 0.00 2,573 3,307 0.8
125 -0.4" -0.31 -0.09 2,522 3,179 1.2
150 -1.2" -0.74 -0.22 2,473 3,055 1.8
175 -2.3" -1.24 -0.36 2,423 2,935 2.4
200 -3.8" -1.80 -0.52 2,375 2,818 3.2
225 -5.6" -2.39 -0.69 2,327 2,705 4.0
250 -7.9" -3.02 -0.88 2,279 2,596 5.0
275 -10.6" -3.67 -1.07 2,232 2,490 6.1
300 -13.7" -4.36 -1.27 2,186 2,387 7.3
325 -17.3" -5.08 -1.48 2,140 2,288 8.7
350 -21.3" -5.82 -1.69 2,094 2,192 10.2
375 -25.9" -6.59 -1.92 2,049 2,099 11.8
400 -31.0" -7.39 -2.15 2,005 2,009 13.6
425 -36.6" -8.21 -2.39 1,961 1,922 15.5
450 -42.7" -9.06 -2.64 1,918 1,839 17.5
475 -49.5" -9.94 -2.89 1,876 1,758 19.8
500 -56.9" -10.86 -3.16 1,834 1,681 22.1

225gr G1 .435 at 2,780 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.

.338 Winchester Magnum with a 200-Yard Zero

Zeroed at 200 yards with a 1.5" sight height, the 225gr load first crosses the line of sight at 30 yards, peaks +2.0" at 117 yards, returns to zero at 200, and is -8.1" at 300 and -23.4" at 400 yards.

Download CSV
.338 Winchester Magnum 225gr 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 2,780 3,862 0.0
25 -0.2" -0.75 -0.22 2,727 3,716 0.1
50 +0.8" +1.53 +0.45 2,675 3,576 0.2
75 +1.5" +1.91 +0.56 2,623 3,440 0.5
100 +1.9" +1.80 +0.52 2,573 3,307 0.8
125 +1.9" +1.48 +0.43 2,522 3,179 1.2
150 +1.7" +1.05 +0.31 2,473 3,055 1.8
175 +1.0" +0.55 +0.16 2,423 2,935 2.4
200 0.0" 0.00 0.00 2,375 2,818 3.2
225 -1.4" -0.59 -0.17 2,327 2,705 4.0
250 -3.2" -1.22 -0.36 2,279 2,596 5.0
275 -5.4" -1.88 -0.55 2,232 2,490 6.1
300 -8.1" -2.57 -0.75 2,185 2,387 7.3
325 -11.2" -3.28 -0.95 2,140 2,288 8.7
350 -14.8" -4.02 -1.17 2,094 2,192 10.2
375 -18.8" -4.79 -1.39 2,049 2,099 11.8
400 -23.4" -5.59 -1.63 2,005 2,009 13.6
425 -28.6" -6.42 -1.87 1,961 1,922 15.5
450 -34.3" -7.27 -2.11 1,918 1,839 17.5
475 -40.6" -8.15 -2.37 1,876 1,758 19.8
500 -47.5" -9.06 -2.64 1,834 1,681 22.1

225gr G1 .435 at 2,780 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 .338 Winchester Magnum

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.

.338 Winchester Magnum 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) 260 yd 0 yd 305 yd +4.0" at 145 yd 22 / 260 yd Download
10" (elk, moose) 284 yd 0 yd 334 yd +5.0" at 157 yd 20 / 284 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.

.338 Winchester Magnum Ballistics Comparisons

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