I have not used the Bergers. I did try, Nosler BST and Partitions, Hornady SST, Barnes XBT and TSX, and Kodiak Bonded. I tried the following powders MagPro, RL-19, Retumbo, IMR 4350 and 4381, Ramshot Hunter. In the 140g MagPro is the best. In the 130g I'd probably go with RL-19