One ugly rifle - sort of like a bolt action AR - immensely popular and functional.
Some observations:
The .243 Win version has a 1-7.7 twist that will enable use of 105 grain VLD bullets and also the 107 grain Sierra Match King, that with a 26 inch long barrel should produce 3000 +- fps. This is what probably why Ruger came out with the 1600 yard business, anticipating this combo super sonic out to 1600. Looking at most 1000 yard bench rest shoots relatively small 6mms like the 6mm Dasher are the usual winners. I would expect the magazines would be of 2.8 COAL. This rifle is not intended to be a bench rest rifle (1000 yard bench rest shoots) and being such is supplied with only an adequate barrel but the entire works is a buy at about $1 thousand. I would expect that any accuracy guarantee would be a real headache because of a huge amount of variables (bullets-quality & make, ammo, ability of shooter and more).
I read that the barrel is a chrome-moly one having 5 lands and grooves meaning that the opposite area of the barrel would not be like land or groove. My first impression was that the barrels were chambered with an extended portion just behind the rifling of some .0005 or so diameter larger than bullet diameter. This should help out with bullet seating for best results. The 6.5 Creedmore is a nice cartridge, especially in a short action and provides a great combination of moderate velocity, bullets having great form factors, accuracy, and good barrel life. Brass can be formed out of .22-.250's. Every body reading this can appreciate the .308 Win
The Ruger ad, "barrels can be easily replaced" by some gun smith. Ruger neglected to say what gunsmith and an improperly installed barrel having excessive head space could lead to an event causing destruction of the rifle. Would Ruger react favorably to something like this. All my Ruger rifles have high grade stainless barrels of non Ruger make - I just use them without benefit of Ruger warranties. Possibly Precision Rifle owners might want to upgrade the barrel in their rifle to some stainless match grade type and/or different caliber and the warranty business might be a concern.
8-40 screws are used instead of the smaller 6-48 screws for attaching the (20 MOA?) mount base and the upper and bolt are CNC machined steel rather than investment cast.
Generally, I think all the calibers available would be poor choices for volume rodent shoots. A dozen or so rodents OK but 150 to 200 per day no. A .223 or .204 would be better choice. As far as all day carry in hunting there would also be better rifles but that is just my subjective opinion. A 20 round magazine of .308's loaded with 168 grain bullets would increase weight.
This rifle appears to be Ruger's response to the wave of AR popularity and at $1 thousand might be popular, provided that some unseen problem does not cause a recall (lots of small moving parts).