New to the board and Center fire Savage rifles. Looking to purchase a bolt action in .223. Prefer heavy barrel all tho ultimate would be fluted and threaded. The Accu-Stock / Accu-Fit fits me well. Leaning towards the 110 Varmint or Predator. Both have bottom bolt release compared to my Desert Tactical that has the top release. Is there any rhyme or reason to which model rifles have the top or bottom style? The top seems natural to me . Any advantage to either one?