Blind Magazine....Less costly than other magazine types. Stock is not inletted for bottom metal frame.
Load rounds into magazine one by one through the top of the action, unload the same way via cycling the rounds through the action with the bolt. Adds a level of caution as to safety while unloading rifle.
Magazine difficult to clean, action must be taken out of stock to access magazine.
Hinged Floorplate.....A bit more expensive to manufacture as this design utilizes a bottom metal magazine frame. Stock is inletted for magazine bottom metal. Load rounds into magazine one by one through top of action. Unload by opening hinged floorplate allowing ammunition to 'dump' out of bottom of magazine into your hand, cycle remaining round that is in chamber out of chamber via cycling the bolt.
Detachable Magazine....Most costly to manufacture as this design utilizes both bottom metal magazine frame and the detachable magazines themselves.
Stock is inletted as the hinged floorplate model. Load ammo into detachable magazine itself, while magazine in out of the rifle. Rifle may be topped off with fresh/additional rounds in the same way as the other type of magazines, through the top of action. Unload rifle by dropping loaded detachable magazine out of bottom of receiver into your hand. Cycle remaining round out of chamber via cycling the bolt.
The advantages of detachable magazines are....You can carry a loaded spare mag. with you, making reloads extremely fast. Rounds are not dumped loose, into your sweaty or wet hands during the unloading phase. Quieter to carry, no shells clinking around. As with the hinged floorplate, makes cleaning the action much easier!
Much easier to load/unload rifle when your hands/fingertips are cold! By having an additional spare magazine with you, you have cut your odds by 50% of tossing the hunt do to magazine spring/follower failure.