I have a 7STW with a 26' Hart 10" twist bbl. Rifle shoots .60" @ 200yds with 140gr bullets at full throttle. When I spoke to the guys at Hornady about shooting their 162gr A-MAX bullet from my 10" twist barrel, they told me the bullet would NOT be stable past 100yds. I certainly don't need an A-Max to shoot less then 100yds! Would the 168gr SMK bullet remain stable at loong rang if fired from a 10" twist barrel??