The 100ATR is basically the Charter Arms Field King reborn, which was a decent rifle. I would personally rate it better than the 710, but in the same class. For $100 less (okay, $80 less when you add the same scope), it is a better deal.
Now, I have never fired a 710. I looked at it, wanted it, and then held it and lost any desire to own it. I didn't have to drive a Yugo to know I would not want one (even before they revealed as the pieces of crap they were). In the same manner, I can look at the 710, which is a dead end as far as rifles go. It is as good as you can get it. There are no better models of 710. There can be no upgrading, no improving the trigger or stock, nothing. It is built cheap, not just inexpensively, but CHEAP. But, it is priced at the same level as the Savage 110XP, which has an almost infinitely better trigger, better construction, better bolt (much safer bolt as well in the event of case failure), smoother feed (no need for plastic to dress up a crappy reciever), can can be upgraded down the road should the shooter want more. When you get a Savage, you have all the room you need to improve it cosmetically or ergonomically.
With the 710, that's it, that's all you get. Nothing else. The magazine attachment is weak, the bolt depends no plastic inserts to operate properly, and the trigger is nothing to talk about. For the same price of a Savage, it is piece of crap.
Now, if the 710 were the price of the Mossberg ATR, then it would be different. I would still not like it, but at least it would be priced less. Hi-Points are cheaply made firearms that are ugly and have no future, but they are at least priced that way. But nobody would buy a Hi Point that was the price of a CZ-75. The Remingotn 710 is like Smith and Wesson introducing a pistol built just like the Hi Point but charging the same price as the CZ-75. Folks might brag that their pistol shot well, but the fact remains it would not be worth the price.
The Emperor has no Clothes.
Ash