+1 300 win mag is very versatile. When I had only one rifle it was 300WM. With it I killed everything I shot. Not really sure that I have gained anything now that I have 6 rifles.factory ammo is expensive. lot of choices for factory ammo with the 300 wm. the gun/make model is going to be even more important shooting factory ammo; to get the precision you need . a 700 sendero, 5-r or a 700 with a krieger barrel. it takes quite a bit of practice to get proficient at the longer ranges. $$ with factory ammo.