It sounds much louder than a 22, did you have hearing protection?
That is the one reason I am waffling on a highpower suppressor, I don't want to wear hearing protection.
Like I said... I'm standing in the worst possible place to be when a gun goes off. I had no hearing protection on, neither did the shooter. I didn't shoot it without the can... but I bet the muzzle blast from a 17" .300 mag would be pretty obnoxious. My buddy had never been around a suppressor... he said: "it sounds like a pissed-off .22".... that's a good way to describe it.
You better pray to the God of Skinny Punks that this wind doesn't pick up......