This Tikka T3 Tactial magainze is a replacement for Sako A7 Small Action rifles caliber in 308 Win/260 Rem.Tikka T3x Tac A1/Compact tactical rifle magazines are handy to have in your pocket when hunting or target practicing, as an empty magazine can be replaced quickly and easily with a full one. Simply slip in a full mag and you are immediately ready to chamber another round. This magazine fits only the Tikka T3x Tac A1 and Compact Tactical Rifle models.