I've got a lot of help from this forum in every aspect so I guess I should contribute a little. Year ago or so
my buddy got me horned up on 'long range' stuff, which I've found to be addicting. I've put my limit on 600 yds, shooting at game that is. Short story this is out off a completely factory rem 700. They are going 3000. 500 yds off the top of the truck. I have m1's on all my rifles now and love them. Jbm ballistics is spot on.