No, it not necessarily a bad shot. That bullet is so fast that it could have zipped right through the deer and not expanded at all. I've seen it happen with a 7mm-08. If the shots you are taking are often falling under 100yds, then it is pointless to have a .270. You'd be better off with a medium velocity cartridge. There isn't much difference in a 130gr .270 and a 150gr .30-06 so, I don't think that will change anything.