Im probably going to have to get another scope because I bought a cheap ncstar that more than likely wont hold zero! Im going to the range one more time and zero it again at 50 and see if it holds. This time if it doesnt Im in the market for something way better. I will be hunting coyotes with my BUSHMASTERAR-15 and Im wondering EOTECH 512 or say a tasco red dot like on my 12 guage. What are advantages and disadvantages of the 512 vs. tasco red dot ?  I will be in thick timber 95% of the time and a occasional open corn field!