I love my .300wsm Montana with 150's at 3300fps and no pressure signs. I shoot a lot and over 500 yds wouldn't be my optimal choice on an I wounded game animal but I have ample rounds through it and feel very confident in a first round hit to 750yds assuming a good rest.
Same goes for my 257Roy with 100 TSX am .338 RUM and the 210 TSX. Have several other capable rifles/rounds but those 3 are my usual hunting sticks
