WHAT DOES LYMAN RELOADING PRESS STAND MEAN?

Turret has two holes for deal with, but want 4 holes. The priming system wants function the primer tube set to shut into the turret, needs established again a minimum of 3 inches back from the turret to distinct the turret take care of and powder measure tackle when turret is moved, The erwos stated: is definitely the Dillon 550 a possibility? I a