Klint, I have an Encore in 6.5X55 with 15" barrel it shoots 120 grain bullets @ 2700 fps, 125 nosler partitions @ 2575 fps and seems to like IMR 4350 more than any other powder. I also have a Kimber Mauser that shoots really well and doesn't seem to be as particular what powder I use . Have some factory 140 grain loads but have not chrono'ed them Ralph