IOR or Nikon
I've been a long time fan of the IOR scope line, but here in the last few months I purchased a 4.5-14x Nikon "Coyote" scope for my 243, and I must say it has some damn fine optics, very clear.
It is only a 1" tube hunting scope and doesn't have some of the features of the IOR, but I do think the glass is even better.
$1,250 vs. $350 or so.
I would certainly consider another Nikon were the need to arise.