TCR, welcome to the board.
first off, if you don't reload, pick up a box of Winchester White Box from Wal Mart. They're in a white box of forty rounds for about $12.00/box. Most that have tried them report excellant accuracy. I've used them as well, and they worked great.
If you're into reloading, try50 or 55 grain V Max's, and/or Nosler Ballistic tips. I am using 50 grain V Max's right now, but just picked up a hundred 40 grainers to try. This is in a .223, not a 22-250, but it should be similar if the twist rates are the same.
Good luck with your new toy and keep us posted on how it's working out for you.