I think the velocity loss for Grendel is around 25-30 fps per inch IIRC. There is a chart in the Grendel handbook from Paul. This is the reason for the popularity of the 16-18” pipes over the 22-24”. Even the 12.5” Grendel’s are holding their own out to medium range.
http://www.65grendel.com/forum/showthrea...d-Velocity
ETA: Found the old chart from years ago
http://www.65grendel.com/forum/showthrea...d-Velocity
ETA: Found the old chart from years ago
Member since 2011, data lost in last hack attack

