My go to powder is RL-7 with a 32 gr bullet. I've also used some AA2200 with good results. I'm using Remington and Lapua brass in my 20 VT, with a Remington 7 1/2 primer. I use my VT mainly for prairie dogs, just shot over 400 rounds thru it about a week ago. It's a solid 400 yard prairie dog gun, but I've shot some very good groups out to 500 yards.