FWIW, have pretty much settled on using 25.8 gr of Ramshot Exterminator with Nosler 70 gr FB or BT Varmageddon bullets in my 6x45 rifle. Very good accuracy (3/8" 100 yd groups typical) for me with this load. Don't have a chronograph, but think this load is well over 2900 fps.

Dropped a nice size young boar pig with this load a couple of weeks ago at 100 yds.
Put the Nosler 70 gr FB between its eyes with a straight on head shot....the pig immediately dropped.