>>64095644
For 800 meters? Maybe it is a bit short

https://ndia.dtic.mil/wp-content/uploads/2011/smallarms/Thursday12439Stucki.pdf
This list it having a range out to 600 meters against enemy soldiers in defilade. Now you have to consider the XM 25 is from 2011 (14 years ago). All they had do was increase the range and fix some of the ammuniton reliabilty and you have solved the afghan problem of a pkm doing harassing fire from 800 meters.