I don't know about the Cabelas scopes, but Primary Arms has several FFP offerings ~$230-300 price range, they have a lot of reticle variations that change the price a bit. I've got the 4x14-44 R-Grid reticle on my RPR and am thrilled with it and especially the price. I haven't heard of anyone disappointed with them so far, lots of youTube reviews of them.
Sure they are no Leupold or Nightforce, but if you are new to long range shooting, IMHO you'll get farther faster with more practice and better ammo that by spending 5X more for a better scope.
If Cabalas uses the same OEM as Primary Arms and takes the same care in ensuring quality control it could be a good value. I've met the owner of Primary Arms his key to success is his Chinese suppliers always say to him: "we can make it cheaper", he says: "we don't need it cheaper, we need it better for the same price"
Do you need to shoot at dusk/dawn? in the rain or snow? if so, you probably need better, but if for recreational shooting, $300 buys a lot of scope these days if you shop carefully.