The higher the pressure, the sharper the "crack". Or so it seems to my ruined old ears. I hunted with a .30-30 this past fall, and I'll be doing the same next year, if for no other reason than it was so much more comfortable to shoot. (In terms of muzzle blast.)

"The number one problem with America is, a whole lot of people need shot, and nobody is shooting them."
-Master Chief Hershel Davis