I tested four 7mags one day with a load they all shot very well.It was 66.0grs of Reloader-22,Rem.Case,WLRM,160gr Accubond.This was how it went.
Ruger 1-V 24" barrel - 2890fps
Ruger 1-B 26" barrel - 3100fps
Remington 700 24" Douglas barrel - 3050fps
Remington 700 Sendero 26" barrel - 3000fps

~Molɔ̀ːn Labé Skýla~
As Bob Hagel would say"You should not use a rifle that will kill an animal when everything goes right; you should use one that will do the job when everything goes wrong."Good words of wisdom...............