"Usually shoots in the .5's" is not 1/2 MOA all day long.
Now I'm not trying to rag on anyone, or their rifle. To be honest, any factory rifle that generally shoots in the .5's is a dang fine shooting rifle. I would take that any day for a varmint or calling rifle.
But lets be honest here. "1/2 MOA all day long" means something different to me. Shoot 5 different, five shots groups on one piece of paper, with an average of under .524" (1.047"/2), and then I will say your factory sporter shoots 1/2 MOA all day long. And sure, there are some factory rifles that will do that, and better. But there dang sure aren't as many out there as folks make out.
If you haven't ever tried putting 5, 1/2 MOA groups on one sheet of paper, I suggest you try it. Most folks haven't ever actually tried to. I promise you will come away with a new respect for what a true 1/2 MOA rifle (and shooter) really is.