Thanks, guys!! Well, there are not many good factory ammo options for long range with the 300 WM. I shot a 300 WM with the 190 SMK for many years in competition, and it's one my top calibers that I know really well. A great dual purpose bullet would be the 208 A-max. The A-max bullets are great for long range shooting as well as for hunting. I've taken many animals with a 208, as well as many customers. All have liked the performance of the round. I have a bunch of Winchester brass in stock now, and am out of the Norma/Nosler currently. I am currently running the Hornady 225 BTHP at 2910 fps avg in my TRG 42, and it shoots little groups a long ways off.
300 WM options on my website below. There are many other bullets I can load, depending on what you like. The new 210 LRAB would also be good. Let me know if you have any questions, and I can answer. http://dallasreloads.com/product-category/300-win-mag/