Unfortunately the 264 Win Mag is on life support as far as cartridges go, between its reputation as a barrel burner and the historic failure of any 6.5 mm cartridge to really catch on with the masses. I could only find two factory loads for it, Remington and Winchester. As far as rifles you can get a Blaser R93 for $3K and I think Remington had a limited run in the 700 SPS.