I’ve been shooting the Varmint knocker Slugs that are made by D-RIG for about 1-1/2 months. My 25 Veteran likes the 32.8 grain and shoots them at about 870-875 FPS..I Confidently shot this squirrel today at 25 yards and I must say I found a slug that works great in my Veteran.. Makes a nice pop upon impact and squirrel is expired in about 5 seconds.