I found a REM700 .22-250 VSS that has the factory Remington barrel. I could not find the twist rate on their website for the VSS but all the other rifle specs for the .22-250 have the twist rate at 14". I am trying to get a feel for what grain ammo may shoot the best. I personally was guessing 50gr. and less. Any .22-250 shooters out there that can share their experience would be much appreciated. I will be killin coyotes with it.