Tatume,

Usually so, but Sako used to build all of the calibers it listed in only three different actions. L46, L461 and AI were a sort of mini actions for small game rounds as .222 Rem. L57, L579 and AII were in a .308 Win class. Bigger L61R, AIII and AV are all .375 length actions and Sako used them from .25-05 and up. Model 75 and 85 now use medium action too, which is .30-06 length action.

Sako is not alone in this game. Ruger on the other hand is a good example of standard length magnum action which can digest only Win Mag class magnums.