Well, all my fart arsing around with loads for the 7mm08 has paid off!
Weight sorted cases
Weight sorted bullets
Cases fire formed
Necks trimmed
Necks turned to 12thou
AR 2209 weighed out to the granule
See pics below:
I was calibrating my scope to see if the click values were equal to 1/4 MOA, so i made a calibration board. I set out 22.86m with pegs and then ran out some 50lb braided fishing line (near zero stretch). 4 x 22.86 = 91.44m=100yd. I marked the length with a clove hitch around a rubber band and then ran out the 100yd and set up prone with my reticule at the 100yd mark. 10, then 20 clicks up: bang on 20m MOA (measured 1.047" locked on caliper and marked out on the board. Repeat process with clicks down: same same, bang on at 10 & 20 MOA. Job one done and happy.
Then to re-zero the scope to true 100yd, rather than an approximate 100m.