i'd say stay regular 25/06,mine runs a 26 inch Shilen cm bbl turned dwn from a full bull bbl, 1-10 tw, can run 100 nbt's to 3500, not paying extra for special dies, n brass trimming don't bother me. 115 nbt's cronoed at 3025 ish, works for me. the rifle you own Rmtn 700, is very slender ,built lite, and a beauty to boot BUT an overly long bbl on that stock is gonna not look rite, use the action and get another stock, or not your choice bbl length and bbl conture comes into play also ,you want to kind of match everything together so it looks Beautiful, make sense ? many disagree on bbl length but it a great way to feed the need for speed, the bbl you have now is 22? i'd still go 26,not 28 even though I have 28 on bolt actions, now if your rifle was a ruger #1 i'd say 28 and let her rip ! if you re stock her a # 3 conture would be very nice, remember contures vary from bbl maker to bbl maker good luck & shooting..