Update for the IMI stuff:
25 meter targets - size adjusted for 25 yards.
Rifle is a RRA Elite UTE2 - iron sights - sighted in for LCA M855
First 6 rounds in left target - remaining 14 rounds in right target
I shot another 20 rounds at 50 yards with good results. No problems to report. Shells were not ejected as far as the M855 were.
Good stuff...