I was looking for basically the same a little more than a year ago. I went with an X7 in 7-08 as I was given reloading supplies for it that needed to be used. I also own a Howa in 22-250 and it's a great shooter and IMO a better finished rifle vs any mentioned except maybe the T/C venture. The howa action isn't that light, however.
Also, this is one article I enjoyed and found valuable as I was deciding which 7-08 chambered rifle:
Mike's RAR vs. X7 comparison
BTW my X7 has been great and it's quite a shooter, as is my Howa.
Also, I concur in thinking a detach mag is more of a hindrance than good for a hunting rifle.