I have six and have fired them all a lot . The CR-39 is more accurate than you would think . The FR-1 with the scope also shoots very well . The standard Mas-36's are very good combat rifles and would always win or place well in our speed matches . The cases can also be made from 6.5 Swede . The are not a true .308 "cal " bore , a little tighter .306 -.307 . They do gain some in accuracy if you use lighter low drag .308 bullets . The 135 SMK has been really good .