If you compare the ballistic charts for a .308 and a 30-30 you may be surprised. If my memory is correct, there is about a 100 yards dif between the two. IOW, at 200 yards the 30-30 compares very well, velocity wise, w/the .308 at 300, now if you compare Leverevolution ammo to .308 stuff, the dif is less.
BTW, velocity isn't everything as slower moving bullets oftern penetrate more than faster ones as the faster ones often mushroom faster and do other stuff (like break apart) that inhibits their penetration.
John 14:6