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 fit the removable box mag, something like 2.82" col, if memory serves. By contrast, excellent results w/ Berger 168 VLD-hunting (sub-MOA) at 100, 200 yards. Specific suggestions? Thanks.