That's cookin' , I haven't shot my loads through a chrono yet but they won't be going that fast.
Something in the ballpark of 2600 or 2500 fps inside 200 yards
Sierra says the .308 spt prohunter 180 gr has a bouble tapered jacket but can't find any info on what that means exactly.
I cut the tips off a ballistic tip and a prohunter but they seem to have the same thickness.