We all know speed comes at a price. And, especially so at the .284 bore and below. There is a reason I have retreated back to the 7-300 and the 300 win. from all the RUM's, 30-378's, 7 Lapua, and even the STW. I have no desire to change out a barrel every year just about the time I get dialed in, drops worked out, and my confidence built.
If I get the 7-300 a little over 3K with a 195 in a 26" 8 twist, and I think I will. I will know I can get 3100 from a 28 and over 3100 from a 30". To me that will be nothing to sneeze at with a G1 BC of .755.
Jeff