I have both and have killed deer with my 3030, but I would go with a 270, because a 3030 is only good out to about a 100 yards for the average person. The 270 is good from 10 yards out to 300 for the average person. I have seen many deer out in a corn field at 200 yrs while carring my 3030. I just had to let them walk. Go with a 270 and you wont have to pass up as many deer.