I have a Leica 1000R and today in full sun it would not read a 2x2 target at 400 yrds. Early in the morning it would read steel target at 800. I do not need any internal ballistic programs or weather meters just a solid rangefinder that will range deer sized animals out to 800 in most conditions. I see Leica has a 1600 out and I am wondering if this is my best option or if there is anything else out there better. Any advice would be appreciated.