I have one in 22-250, the scope works fine for me, the farthest I've shot with it is 400yds though. As for the brand.... good question! I think it sais TC on the adjustment caps, but I'm not sure who makes it. I haven't had any problems with mine yet. And just so ya know, they really really really like Hornady Superformance Varmint! Well, mine does at least!
