Full length RRS dovetail rail vs partial

jackinfl

Sergeant
Full Member
Minuteman
Dec 19, 2008
838
169
Fort lauderdale, Fl
Seems like alot of manufacturers are moving to a full length rrs dovetail. What are the pros of this vs a picatinny rail or bipod stud up front and a length of RRS DT just in front of the magwell?

Interested in thoughts.