There are several factors that can contribute to the sound level of your gun. If you think your gun is too loud please consider the following...
- Are you shooting a pellet or dry firing?
Some guns such as spring and gas piston air guns, can be harmed when shooting dry. This is not something you should do in these guns. It also makes for a far louder shot. Make sure a pellet is properly loaded for every shot.
- Are you using a heavy enough pellet?
Some guns can shoot pellets over the speed of sound. This sonic crack cannot be silenced by any suppressor or baffle. To reduce this, you want to shoot a pellet that will keep your velocity down to around 1000 fps or less. This will keep you accurate and quiet.
- Are you indoors or outdoors?
Depending on where you are shooting can also change how loud an air gun sounds when it goes off. Closed off spaces can echo the report of an air gun.
- If the gun is suppressed, are the baffles intact?
Many guns come with baffles and suppressors on them from the manufacturer. It is possible that they are damaged or missing on some guns which can change the report. Make sure to visually check for damage or missing pieces.
- Is the gun just plain loud?
Some guns are just loud. They either have no suppression or the power plant itself such as CO² is just a loud way to go. In these cases there may or may not be things you can do to make them more quiet.