ORIGINAL: stubblejumper
There'snot much difference between the .30-06 and the .270. I was just making a point cause he was asking about the 150gr.
There is a great deal of difference between a 150 gr .277" bullet and a 150gr .308" bullet.One is very light for caliber,and the other is very heavy for caliber.
just wanted to add something to your post my friend, might help folks understand a bit better.
For optimum penetration and expansion for a .270 and or a 30-06 on deer sized game your SD should be between .190 to .242, which covers 100 grain to 130 grain bullets for a .270 and 125 grain to 165 grain bullets for a 30-06, for elk your SD should be atleast .270 or better for both calibers, a 150 grain pill from a .270 has a SD of .278 and a 180 grain pill from a 30-06 has a SD of .271.
I know to alot of folks this is french to them. but this also where alot of folks mess up and choose the wrong bullet for their game. just another 2 cents
edit: wanted to add this maybe this will help translate the french, a 150 grain bullet in a .277 dia has a SD of .278 which is fine for elk, where a 150 grain bullet in .308 dia has a SD of .226 which is just barely middle of the road for deer.