i am running a nikon monarch 6.5x20 now. i am using the factory base and A.R.M.S. #22 Throw Lever Rings (High). Im having alot of trouble hitting 1760yds. Does anyone make a base that will fit without any mods to give me enough moa. i hear 40 moa bases are working but i dont know what this will do at 100 yds. what zero should i be set on. also i max out my windage dial even at 300yds. could their be something wrong with my scope. id like to go to a leupold mark 4 or a nightforce or a vortex. i know wind and other things will not let me put crosshairs on at a mile and make the shot but i am maxed out up and holding a long way up. we have found bullet jackets at 1740yds and have seen splash all around target so i know im getting close but i am holding way to far up. any sugesstions?