I have noticed when shooting my 300 WSM next to my brother-in-law's 338 Win Mag mine is much louder and has that nice Crack where his sounds more like a Shotgun or muzzle loader with a deeper BOOM. The velocity is not much different between my 180gr 2990fps and his 220gr 2880fps.
My 223 really makes a higher Crack but that is understandable with the 3700fps muzzle velocity.
Anyone else notice these sound differences?
CPL holder since 1991, NRA Lifetime Member, DU Member, NICET certified
"For those who would give up essential liberty to purchase a little temporary safety, deserve neither Liberty nor safety.—Ben Franklin.”