an efficiency expert will tell u that the best would be one that uses the least powder to do the job. so the short action calibers have the advantage. 308,7mm08,260,243, types.personally i now after 54 years of deer hunting use a 270,but the only mag i have ever used is a 7mm mag ,but just 1 year,i did use a 25-06 for 15 years,and a 30-06 for 10 years

Last edited by thomasgajan; 03/01/16.