25M = 27 Yards, 20" Barrel with 62 Grain M855
Its what the Army used when I was in so it's good enough for me. If you remember your 'Pace Count', you can pace it off at most ranges to be quite accurate for distance.
This enuff said!!!
“Do not think that I came to bring peace on earth. I did not come to bring peace but a sword." Mat 10:34