I put 100 gr. Remington Core Lokts through my .243 for 3 years, mostly based on price. I decided a month ago to compare loads, getting a box of the Reminton Core Lokt 100 gr., a box of Winchester Soft Points ~100gr., A box of Federal Vital Shok 100gr. and a box of Winchester Ballistic Silvertip 95 gr. The Remingtons wouldn't group well, while the Winchester Ballistic Silvertips gave me the best grouping. I'm using those this season, and I'm excited to try them out in the field. Maybe my gun just likes the loads, and yours will probably be finicky. I'd recommend trying them all out and seeing which ones your gun likes best.