Hello. New here. Struggling to find an accurate 308 load for Nosler 165 partitions in the CZ 550 Varmint, 308 Win, 1/12" twist, 26" barrel. Would like a partition hunting load for feral hogs, but have achieved no better than 1.5" groups at 100 yards with Varget, BL-C(2) loads seated to just...