Cartridge ballistics

.22 LR Subsonic ballistics chart

The .22 LR subsonic trajectory with a 40-grain suppressor load: drop, wind drift and retained velocity from a 50-yard zero out to 150 yards.

Overview

Subsonic .22 LR keeps a 40-grain bullet below the speed of sound - typically 1,040-1,080 fps at the muzzle - so it never produces a sonic crack. Paired with a suppressor it is remarkably quiet, which is why it dominates pest control around buildings, backyard practice and small-bore training where noise matters.

Because the bullet is subsonic from the muzzle it never passes through the accuracy-wrecking transonic buffet that standard and high-velocity .22 LR hit around 75-100 yards, and many rifles shoot their tightest groups with good subsonic match ammunition. The cost is a steep, looping trajectory: useful drop begins almost immediately and every 25 yards past the zero needs its own hold.

Typical uses: Suppressed pest control, quiet backyard practice, small-bore training and close-range small game.

Sample load

The trajectory below is calculated for this representative factory load in a standard ICAO atmosphere. Your rifle will differ — enter your own chronographed velocity and verified BC in the calculator for numbers you can dial.

Bullet
40 gr subsonic lead round nose
Muzzle velocity
1,040 fps
Ballistic coefficient
0.125 (G1)
Zero
50 yd

Open this load in the calculator

.22 LR Subsonic trajectory table

Zeroed at 50 yd. Drop is bullet path relative to line of sight; elevation is the come-up to dial. Wind column is a 10 mph full-value crosswind. Italic rows are subsonic.
Range (yd) Velocity (fps) Energy (ft⋅lb) Drop (in) Elevation (MIL) Elevation (MOA) Wind 10 mph (MIL)
25995880.3-0.4-1.30.4
50957810.00.00.00.7
7592376-2.71.03.51.0
10089371-8.02.37.61.4
12586667-16.03.612.21.7
15084163-26.95.117.12.0

This load is subsonic from the muzzle, so it never passes through the transonic zone that disturbs a supersonic bullet as it slows. The trajectory is steep but predictable.

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