I purchased a six arc in a Ruger American Gen 2 a little over 4 months ago. I bought the standard with a 20-in barrel.
I love reading on this forum, but to be honest, I do not hand load nor do I shoot really long range, although I bought this gun so that I could begin to shoot long range eventually.
I found the gun to be really really nice, and I used an aftermarket trigger spring which brought the trigger down to 1 lb 15 oz. For the $12 I paid, it was an easy and worthwhile upgrade. It is not a Timney, but it serves my purpose just fine.
From the factory the gun is slightly front heavy and I enjoy the stock although I wish it had more of a vertical grip. An Athlon Aries ETR 3-18x50 sits on top and in my gun the 103 grain ELD-Xs seem to be the most accurate, shooting under MOA at 100 yd and 200 yards as long as I do my part well. I added an MDT bipod and removed the factory muzzle brake and installed a suppressor. This made it more front-heavy.
Ruger sells a weight kit for the hollow butt of the stock. With the full amount of weights, the gun is a bit heavy but balances pretty much perfectly. The way it sits it is just over 11 lb but that makes recoil pretty much non-existent, nearly on par with my 17 HMR and my 22 win mag.
Finally, I eliminated the magazine and installed Ruger's single shot adapter. I do wish the adapter was solid on the bottom as it is hollow, but it makes feeding even slicker than it was from the factory and I like that it is completely flush. When I'm at the range it is no big deal to load individually. And I guess that when hunting knowing I only have a single shot means that I take my time and make sure that I do what I need to in order to be as accurate as possible.
I looked at the same guns that have been mentioned here in this thread. It came down to this or the Howa, but I purchased the Ruger from my local gunsmith for $519 and I could not touch any of the other guns other than the Savage axis for anywhere near the price I paid. I bought the weight set on eBay for $40 and the single shot adapter for another 20 dollars. As I said the trigger spring was $12 and the bipod was 90 dollars. The scope was just over $600 including tax from scopelist.com and the suppressor is for a 30 mm and will be replaced by a 6 mm OCL Polonium that is currently back ordered and will cost me another $500 (plus stamp).
It has begun to get expensive considering I originally purchased the gun for under $520, but I have a very accurate very well balanced extremely light recoiling 500 yd whitetail gun that is suppressed with very good glass for under $1,800! To me this is an acceptable price for a package like this.
The others are probably also fine guns, but I am quite impressed and very happy with this purchase and build.