I have a 6.5x55 and a 300 win mag. We shoot from 200 to 1 mile. The 6.5x55 i use til about 1200 and then 300 win 1200 on out. We shoot for fun but take it serious with a few buddies. That said what would be the best overall cal so i just have 1 rifle to do it all instead of 2. Thinking 7 saum 7mm rem mag ect???