Id recommend looking at what elevation range you need to help narrow it down. Vortex Strike eagle, venom and the some of the Riton scopes for example suffer with reduced elevation travel when you set the zero stop. I use an IOR recon myself and its an absolute tank of a scope but it'll give me 35mils of elevation. Delta are alright but I found the eye relief hellish long on my javelin and good luck getting the lense caps off in a hurry to fit your sun shade lol