I recently sold my Rem 700 Sps stainless in 300 wsm
for a custom build in yep 300 wsm,, mine should come out around 10lbs +- 1,with optics,, but with 20 inch barrel for getting under stuff.. I am still hooked but have never owned the Sako finlight they feel great in hand and are apparently very accurate as long as you keep the rounds down to 2-3 then the barrel starts heating..I loved my SPS,, It was light and I got lucky out of the box was sub Moa. with factory ammo!!.I was allways bothered by the glare so one day while hunting a burn area fixed that with some charcoal..I took many whitetail with this caliber and also one 6x elk , and one muley 170 inch both at 300 plus,, My build is as follows..Rem LTR convert from 300 saum to 300 wsm, restock with BnC tactical, add extreme v brake,,got to see your impact ,tune trigger ,accurize bolt and action, Badger 20moa badger base and badger med rings and SnB PMII..can not wait to get her..Good luck..