Q on bullet velocity...

[Magnum50]

Just confirming, if I have a suppressor on my KUNA, (which I just ordered one), You don't have to buy rounds that are labelled sub-sonic right? If I already have boxes of Federal Premium 9mm Luger 147 grain, with a velocity speed of 976 fps at 25 yards, and 953 fps at 50. That is considered sub-sonic right? Anything under 1000 fps is considered a sub-sonic round and safe to use with a suppressed handgun and/or PCC?

Thanks in advance.

 

[Jfal]

The speed of sound is approx 1125fps.

 

[TEXASforLIFE]

the suppressor dictates what can be used as in rated for. most use the 1,070fps max as sub velocities. like buying a 30cal suppressor...........sure it should be able to use any 30cal cartridge made, but it might be for 300wm instead of 300nm or 308win and not 300wm. full auto rated or not, check with the specs for best info

 

[Retired Bum]

The speed of sound is approx 1125fps.

Depends on what altitude, sea level is different than 8000 feet above.

Temperature has the most impact on the sound, the higher the temperature the higher the speed of sound, and the lower the temperature, the lower the speed of the sound.