Gppd to see some senseable posts at the end here. I've used both for years, 300s are an 06 +200 yds. 338 is a step up.
not even that much- mpbr for the 06 is 275 yards with the 180 grain, the 300 is 325- and mpbr is what counts in my book- personally i use a 308 for MOST things, ( 267 yards) wich i can fudge into either 250 or 275, and still be good to go- but 44 grains vs 54grains of an "ordinary powder ' which i can use in a bunch of other guns vs 75 grains or better of a slow burning specialized powder is what kills the magnums for me- unless it's REALLY necessary- plus you give up 2 rounds



















































