CCI Sub-Sonic ammunition in .22 LR (part no. 56) loads a 40-grain hollow point bullet at subsonic velocity, keeping every shot below the speed of sound to eliminate the sharp crack a supersonic .22 produces. CCI Ammunition built this load for shooters running a suppressor who want the quietest possible report, as well as anyone shooting near neighbors or livestock who prefers a milder report. The hollow point profile still delivers expansion for small game and pest control, so quiet does not mean giving up terminal performance. This rimfire ammunition is a straightforward way to make any .22 rifle or pistol noticeably quieter.

Key Specifications

• The caliber is .22 LR, the most common rimfire chambering in the country.
• The bullet weighs 40 grains, a standard .22 LR weight loaded to subsonic speed.
• The bullet type is hollow point, giving expansion on small game despite the reduced velocity.
• Velocity is held subsonic, eliminating the sonic crack a faster .22 LR round produces.
• The case material is brass, giving reliable extraction and standard reloading compatibility.
• Each box holds 100 rounds, a practical bulk count for a range or pest-control day.
• Fifty boxes ship per case, letting shooters buy by the case for the best per-round value.
• Cost runs about $0.11 per round, affordable pricing for a purpose-built subsonic load.
• CCI markets this specifically under the Sub-Sonic name, built for quiet shooting and suppressor use.

Frequently Asked Questions

Is subsonic ammunition quiet even without a suppressor? It is noticeably quieter than standard-velocity .22 LR even unsuppressed, since it eliminates the sonic crack, though a suppressor still reduces the muzzle report itself.

Will this cycle reliably in a semi-auto .22 rifle or pistol? Some semi-autos are tuned for standard-velocity ammunition and may need a lighter recoil spring to cycle subsonic loads reliably; bolt-action and manual rifles are unaffected.

Is 40-grain hollow point effective on small game at subsonic speed? Yes, the hollow point still expands at typical rimfire hunting ranges, making it a practical choice for quiet pest control.

Buy CCI Sub-Sonic .22 LR 40gr

Whether the goal is a quieter suppressor host or just less noise at the backyard range, Sub-Sonic delivers exactly that without giving up a hollow point’s terminal performance. Order from our Lubbock, Texas gun shop and it ships fast to your door.