I don't think you will get any argument from anyone here with what you said but if one wants to push the envelope as to what a cartridge/rifle combination is capable of as far as spiceing up the load a bolt action is probably the strongest action. Truth be known the Remington 700 is probably the action alot of gunsmiths choose for custom built rifles. Most lever, pump and semi auto actions are simply not as strong, it is in their design. The Browning BLR and I do believe the Winchester Model 88 are exceptions to the rule.
		
		
	 
The Remington is used often because it is a cheaper action than many of thee custom bolt actions, withh lots of accesory parts.
When I mentioned accurcay and semis/pumps, I was talking about hunting accuracy, not target accuracy.
When talking about single shot falling block rifles, mine are as accurate as bolt guns.
Bolt actions are generally easier to rebarrel for a number of reasons,
 the  locking lug system of the bolt being one.
However, these differences are not the main reason people choose a particular type or make of action.
It is PREFERANCE!!
 
 
For instance, I don't think you willl find any quality of accuracy difference in  a Nesika, RPA, Hart, or other custom action , or a Ruger No.1 or Browning 1885.
It is the gunsmithing quality for the most part that makes the difference.
Same as the .260 Rem., 6.5X55, 7/08, 308, 270win, 280Rem., 7X57,30/06, 300 mag, and any of those cartridges close to any of them.
A moose at 200 yards is not going to know the difference in a well placed shot, and willl not know the difference in a lousy shot!
 
 
Both conclusions would be the same if the rounds were zeroed at 200 yards with any of those rounds fired in rifles with any of those actions, a dead animal or a wounded one, depending on the shot.
Cat