my initial feeling is this is a nice scope and probable worthy of my needs. i am moving up from tasco varmits on my varmit rifles and had an eagle eye on my 7 mag and simmons prohunters on acouple of other rifles in 30-o6 recoil class.unfortunatly the eagle eye and 50mm prohunter were stolen prior to christmas and i can not do a side by side comparison. it is as clear and probably clearer than the simmons. i have no experience with the leupys and above so can't comment to them. it appears to be one piece tube, says made in china. focus and power rings are a little stiff, but imagine will free up after a few actuations. so far pleased and can hardly wait to mount and shoot it. would rather have hold over lines set at lower power as i hunt set at lower power to help reaquire target in case need fast follow up shot. Have seen too many people fail to get a needed second shot due not able to reaquire target.