http://www.jbmballistics.com/cgi-bin/jbmstab-5.1.cgi
This is a list that includes the bullet lengths of a LOT of bullets on the market, it also includes plastic tip length, which does make a difference:
http://www.jbmballistics.com/ballistics/lengths/lengths.shtml#Nosler
ETA I calculated the varmageddon with estimated 22" barrel velocity of 3540 (using imr4320) and came up with a factor of 1.188 which is at the higher end of marginally stable at 70F. Since the gun does well with the factory load, I'd say this will work just fine. However, for my personal conditions, I'd look at the shorter flat bases if I wanted laser accuracy, hornady makes an sp and spsx, but honestly I can't promise that the spsx won't vaporize in mid air, I've heard lots of folks with a .22-250 like em, and my .223 break action will almost one hole em every day, (faster twist but 300fps slower) and they are CHEAP to play with. The HP varmageddon and Speer TNT and Sierra blitz should all fly like a laser, (itching to try that blitz myself in my interarms mark x .22-250 honestly). I usually load 50-55 gr bullets in my .22s but nosler came out with something heavier for deer if you NEED it, (though it probably will lose some splosion factor) the 64 gr bonded solid base. I don't know where you live or shoot, but if you are looking at summer prairie dogs with much warmer temperatures than my winter varmints, the varmageddon should work beautifully. If you're looking for sub temp loads, I recommend testing at LEAST 20 rounds in those conditions to be sure before you put Wiley in your sights.