What are the differences between Vanguard, Model 307, and Mark V rifles?

  Mark V® Magnum Mark V® Standard Model 307 Vanguard®
Locking Lugs 9 Lugs 6 Lugs 2 Lugs 2 Lugs
Bolt Lift 54 Degrees 54 Degrees 90 Degrees 90 Degrees
Bolt Release Pull Trigger Pull Trigger Side Release Side Release
Magazine Capacity 2+1 in .378 & up; 3+1 in .257 through .375 H&H 3+1; 4+1 in Select Cartridges Detachable magazines, 5+1 in Range XP, 3+1 in Alpine MDT, Both are AICS compatibile,  3+1 in .257 WBY. MAG., .270 WSM., 7mm Rem. Mag., .300 WSM., .300 WBY. MAG., .338 Win. Mag., 5+1 in .223 Rem., .22-250 Rem., .243 Win., .270 Win., .308 Win. and .30-06 Sprg.
Floorplate Release Located on the inside of the trigger guard Located on the inside of the trigger guard Detachable magazine latch on front side of trigger guard Located on the outside of the trigger guard
Currently Manufactured USA USA USA Japan