Re: Best .30 Caliber Chambering
If you have to have raw velocity then there is the 30-378 or 7.82 Warbird for factory loadings. OR there are plenty of hyper velocity wildcats.
As always, I would try and talk you out of a hod rod. They can be tricky for a noobie and by the time you figure out how to optimize a hot 30, you have cooked two barrels.
A good happy medium is the 300 RSAUM or 300 WSM. These can be very accurate, have decent barrel life and in the hands of a skilled shooter, will kill stuff at ranges most can only dream of.
Retained energy and minimal windage have VERY LITTLE to do with hyper velocity and everything to do with high BC bullets. I have a 308 load that drifts less than the Lazzeroni 7.82 warbird at a full 1K yards despite a 900FPS muzzle velocity difference. Put that same bullet in a 300WM or WSM and your windage is minimized. Put it in a 30-378 and you will frustrate yourself.
If you need a 1400 yard deer rifle the 300 RUM is more justifiable. Even better would be something other than a 30 cal.
Think less MV, think more BC and trigger time.
Welcome to the world of LRH.
Long range shooting is a process that ends with a result. Once you start to focus on the result (where the shot goes, how big the group is, what your buck will score, what your match score is, what place you are in...) then you loose the capacity to focus on the process.