Re: 30.06 plenty gun for elk?
Read about sectional density which is the key to understand bullet penetration. The only way to increase penetration of any given caliber is to go with a heaver bullet. The most interesting thing is going to a higher caliber requires a HEAVIER bullet to equal a bullet of a LOWER caliber. Your 30-06 with an 180gr bullet would equal the penetration of a 270 in a 140gr bullet. Saying all this to say what others are saying is you need to use 200gr or more to make a big difference. Also, at the 220 gr range you are about max for that cartridge. Last, the 30-06 is plenty elk medicine.