The op's original question has been accurately answered , you should learn to read a little better brother . He lives in Pennsyvania , not Translyvania or Tasmania mate ! The best Stihl saws capable to run a 25 " bar efficiently , remain the MS400 for limbing & moderate felling & bucking at 66 c.c. It is almost as lite as many 50 c.c Class.saws . Both the MS461 & MS462 at 76 c.c. + are strong middle weight saws that will pull a 25" bar with authority . So again , his question as stated has been accurately answered ...I live in the Real World were the Big Dawgs Eat ...Eh ! 3120 XP or 592 XP rule production felling ....880 are milling saws brother & old school technology & neither routinely wear wimpy 25 " bars !