I used RL-17 when I had a 6.5CM. works great. BUT, it is temperature sensitive! You don't want to use that load in the summer. RL-16 was supposed to replace RL-17 and not be temperature sensitive. I sold that rifle before trying RL-16 but heard its real good. BTW, get away from photobucket. Find another place to store your photos for posting on forums. I moved to https://postimages.org/