wayupnorth
CGN Ultra frequent flyer
- Location
- Northern Alberta
i put this in the main discussion forum but wanted to put the specific 22 ammo test info here in the Rimfire section in case anyone is looking for info specifically.
so i went out and played this afternoon.
got a Decibel Meter (sound meter) from a local friend who is in enforcement - it has a setting for fast or slow sound and also for high or low - i of course set it for fast and high.
i also brought along a few different speeds of ammo to test out for the 22.
Regular CCI Blazer, CCI Quiet (710fps), CCI SubSonic (1050fps), CCI MiniMag (1260fps) and some strange little Aquilla 20grain ammo that i was told was really no more than just a primer shot with little to no powder.
it was very interesting, it had no problem picking up all the 22 shots.
the graph above lists 22 at around 150db and im guessing that was in a small lab or lab testing tunnel with the mic at the barrel or something.
what i got for readings was this.
just having the meter on and running the forest was around 65db with the wind and the leaves and tree's rustling.
i had 2 22 rifles with me, one single shot and one semi auto.
we all know that single shots are quieter than the semi's so i wanted to see by how much.
the single shot (Chiappa Little Badger to be exact) with just plain vanilla Blazers was putting out numbers of 80-87db and the semi-auto (Ruger 10/22 to be exact) was doing 90-96db.
with the single shot, shooting 90' to the left or right was taking it down to 72-75db, shooting 5 feet in front of the meter knocked it down to 79db and putting the mic/meter right where the shooters head would be hit 87db.
with the semi auto i was getting 90-94db from the meter being 1 foot behind the gun, 78db from 90' to the side - around 2 feet, i went 6 feet 90' to the side and it didnt read it, the ambient noise of the forest was louder than the shot.
as for the different speeds of ammo this is what i got when shooting the single shot:
CCI Blazer - 87db
CCI Quiet - 75db
CCI Sub-Sonic - 89db
CCI Mini-Mag - 92db
Aquila strange small round - 70db
so i went out and played this afternoon.
got a Decibel Meter (sound meter) from a local friend who is in enforcement - it has a setting for fast or slow sound and also for high or low - i of course set it for fast and high.

i also brought along a few different speeds of ammo to test out for the 22.
Regular CCI Blazer, CCI Quiet (710fps), CCI SubSonic (1050fps), CCI MiniMag (1260fps) and some strange little Aquilla 20grain ammo that i was told was really no more than just a primer shot with little to no powder.

it was very interesting, it had no problem picking up all the 22 shots.
the graph above lists 22 at around 150db and im guessing that was in a small lab or lab testing tunnel with the mic at the barrel or something.
what i got for readings was this.
just having the meter on and running the forest was around 65db with the wind and the leaves and tree's rustling.
i had 2 22 rifles with me, one single shot and one semi auto.
we all know that single shots are quieter than the semi's so i wanted to see by how much.
the single shot (Chiappa Little Badger to be exact) with just plain vanilla Blazers was putting out numbers of 80-87db and the semi-auto (Ruger 10/22 to be exact) was doing 90-96db.
with the single shot, shooting 90' to the left or right was taking it down to 72-75db, shooting 5 feet in front of the meter knocked it down to 79db and putting the mic/meter right where the shooters head would be hit 87db.
with the semi auto i was getting 90-94db from the meter being 1 foot behind the gun, 78db from 90' to the side - around 2 feet, i went 6 feet 90' to the side and it didnt read it, the ambient noise of the forest was louder than the shot.
as for the different speeds of ammo this is what i got when shooting the single shot:
CCI Blazer - 87db
CCI Quiet - 75db
CCI Sub-Sonic - 89db
CCI Mini-Mag - 92db
Aquila strange small round - 70db