I can second many of the thoughts here. I had until a few years ago, a takedown straight grip 308 and it was really a fine hunting rifle. I bought it for the takedown feature since I never had a takedown gun before. It is handy for somethings, it breaks apart into a handy sized package (was my truck gun) and makes cleaning a snap. I had the set up for the barrel mounted 2.5X scope so I never had any accuracy problems, although the scout scope set up may not be what you want for long range or target practice, it was a great hunting gun. But with all that said, if I was to do it over again (and I might, I really liked that gun) I think I would just go for the non-takedown model. As handy as it was for some things, a levergun is already a nice and slim package to slip behind the seat of your truck or carry while walking about when out in the bush.
If you like leverguns and just want to shoot at the range, I wouldn't discourage you from getting a BLR in .223 if that is what floats your boat. Ya a boltgun could be had easier and cheaper, but hey if that was what it was all about nobody would shoot anything but a Stevens 30-06, variety is the spice of life.