hey guys im building a 338 lapua and need some quick guidance, i bought a shilen barrel at a local small gunshop for 100.00 yesterday, its in great shape so i found it to be a steal. i then drove to the pawn shop and picked up a remington 700 adl l.a. in 7mm mag (the whole rifle for 280.00) question is will that 338 lapua fit that action? and is there anything im going to need to change on the action. the barrel is for a 700 action.