Any overbore cartridge can erode a bore with some doing it easier than others. I would bet that in a modern weapon the 25-06 is no worse than a 220 Swift or 300Ultra.. If loaded to high pressures the throat will be damaged faster with a cartridge using more powder than another using less. The actual case capacity has almost nothing to do with the problem other than it provides the ability to eat up the bore quicker. If you need the extra speed or just want it go ahead. When the barrel goes bad replace it. It will likely have lasted all the normal shooter would want it to. As to the WSSM etc I am far from an expert in internal ballistics but most have little or no gain over an existing cartridge. They produce 25-06 ballistics in a short action(super short action??) rifle. That's supposed to make the rifle handier and shoot better because it's stiffer. Hogwash!! An action shorter by even a half inch is meaningless and shortening a barrel to shorten a rifle is likewise meaningless as it refers to the cartridge. There are folks who say the rifles produce more velocity with less poweder and less recoil at the same (or greater) velocity levels of the older rounds. Once again that's hogwash!! Recoil is a function of the weight of the ejecta(bullet + powder) and the velocity.. If the rifles weigh the same and the bullets exit at the same velocity they will kick the same.. physics! I've read a lot of theory concerning the internal dynamics of the shortfat rounds and can't really comment with any certainty on their veracity, but If the case shape alters the powder efficiency why not create a round that has twice the caapacity of a 300 winmag in a short fat format. It should generate as much velocity as the 300 ultra with less recoil than a 300WinMag. Instead we get cartridges that duplicate existing rounds, just in a slightly altered form. New rifles have to be bought and my guess is that is the ENTIRE reason for the existance of the new genre of cartridges.. Please forgive me if I hurt any feelings but those are my opinions... Now I'll shut up and get off the soapbox.. Please excuse the length!