The great thing about this forum is that you can glean so much from other shooters. Here is something to think about. I had access to a military rangefinder for a couple of years. It was not eyesafe but it would range nearly anything. When you hit the button it was like the hammer of God. It gave the range immediately. However, it was so expensive that I hated to even handle it. One thing I learned was that the aiming square or circle typically is the width of the projected beam at the target location. I also own a Leica 1200 and a Swarovski Guide. I strongly suspect the aiming square or circle is the beam width with those units as well. However, I don't know that for sure.
I have heard that the eyesafe feature has more to do with the wave length of the pulse and not anything to do with the strength of the laser itself. I read that somewhat on a newer rangefinder for the military. Therefore, I really don't understand why the G7 BR2
can't range further. That said the G7 sounds like a good unit because it gives the firing solution right away. Time is of the essence when you have to make a shot.
I would also like to mention that the Lieca and the Swaro will fill many hunters needs. For example, the Lieca 1200 ranged a coyote at 900 yards+ and under very good conditions I have ranged 1250+ many times the Swaro. The truth of the matter is that a 800 yard shot is still a heck of a shot. Having the latest and greatest is not absolutely necessary to have quality long range hunts. New products often have new unknown bugs. Often the cost of being on the cutting edge is the price of being an unpaid bug finder.I personally feel that a rangefinder will reliably range about half of it rated range. That means the Lieca 1200 is typically a 600 yard product in the field under nearly all conditions. If a buyer applies the "half rule" on rangefinders he/she will have few surprises.
The last suggestion is that rangefinders can do no better than the user holds them. With using a tripod the user can typically extend their ranging ability by about 20% to 30%. A rangefinder is just like a rifle. If you don't hold dead on you will "miss." The number the user gets may not be the target. Hopefully this will add to the group thoughts.