I just got back from the range and shot 6 different weights of .25 cal AVS slugs at 50yds on the factory tune. I shot the Leshiy 2 (350mm with a Tishina 200 moderator kit) off a Lead Sled. The best groups from the slugs were 32gr and 38gr. The best groups overall were with JSB 25.4gr and 34gr...