Erik, We also have an older, inexpensive Bushnel that works just fine on “non-reflective” surfaces to a pretty good ways ....450 or so yards. As others have mentioned, learning to judge distances. With a lot of practice, whether while on a fitness walk, or at work (I used both)....you can can eventually get pretty good to 300 to 400 yards on larger game. With a flat shooting rifle and a longer zero on your rifle ( we zero @ 300 yards.....which many people oppose), and your ability to “guesstimate” your ranges.....you can easily “ hold on hair” to 400 yards on big game. With quite a few years of using a rangefinder, I’ve actually used it only once to make a shot. All of the other ranged animals only showed that they were beyond my self-imposed limit of 600 yards on game! memtb