The only reason so many have used and still use the 300 win is because it was the only choice for a .30 in that class for a long time. Theres nothing about the design you would intentionally design into a new case today. The 300 PRC or 30 Nosler both are better designs, give a small performance edge and are capable of the same or better accuracy. With those 2 choices theres no reason to use a 300 win unless your tooled up for it already. For non reloaders I recommend the PRC, with Hornady marketing behind it, its going to be huge. Just look at the ammo selection of 6.5 creed at the local shop. The 300 PRC will be the same way in a couple years. Lapua knows it too, thats why they picked up the brass for quickly. They dont pick up new cases very often.