Greetings,
I just need to make sure I got it right because I may have to explain it:
SS109 62 grains:
ACOG (I use TA11F) on M4 Zero at 25 on chevron and 300 hit on chevron.
Top line is 350, 400 line is 400, etc.....
M855(what my rifle does right now, proven and working up to 600)...