Watching this thread with interest as I just purchased dies for my 18" LaRue PredatAR. It's shoots Remington, Federal and Hornady factory 150s and 165s into <1". I've got Varget/748 and 150 and 165 SGKs, Interlocks, SSTs, BTs and Accubonds to experiment with. I'm assuming I'll end up wanting to crimp these so I suspect the Interlocks will likely get the nod. 150 blue box Federals have provided as expected performance in the 200-275yd range on whitetails. Because my shots are limited on my place to 363yds, I'm not sure I'll see the benefits of 165s. I'd love to find a super accurate load…but it already shoots well enough for my ranges. I'd welcome any suggestions.