The 30-06 is my favorite deer rifle, I hunt where shots could be short or across a field. I have always used 150 grain bullets for deer, whatever is on sale. Someone told me that I should try the 165 grain bullets for a reason I don't remember. I have not done that but I think 165's might be a little better on larger deer. I will take Mr. Slim's advice and get a box and try them.