Hello from New Mexico: reloading questions

[Klem]

http://youtu.be/ixQZneFw2Hc

That is fantastic shooting, well done. Love the video. So, half a mil low is 50cm I think. Then you go high 50cm Were you offsetting (adjusting for the previous shot) or keeping the same POA and expecting it to hit at some stage in the group?

6,900ft makes a huge difference to ballistics. It goes subsonic at 1,400yds. The transonic blow-out starts a lot closer to the target so the group is proportionally smaller than at sea level. Also realised that a US milk jug is 3.75litres - our standard milk jug is 2 litres.

[Banjo]

[kmon]

Great shooting!!!

Elevation does help stretch things out. I know going from 600 feet in Texas to 6000 feet in Montana along with lower humidity makes a difference.