If bore size defines "Thumper", then there are the pump and lever action rifles in the 357 mag, 44 mag, and 45 LC pistol cartridges. But, if you mean "thumper" as a term to indicate a rifle for large game, then other reasons for longer actions include slimmer magazines and higher capacity magazines, because the rounds are not as fat.
Is there a psycho babble conection between fat hunters and fat cartridges?
I am really disturbed by the people who can't cycle a bolt action properly, yet think they have the ability to hunt dangerous game. We have a group looking for a hardware solution to a software problem.
