There is a 556 Table/chart (not a graph) floating around here that has the different mil-ammo info with barrel lengths,velocity, +/- drops, etc. for different Zeros.
I believe it is printed in black, blue, red and green print type.
Can’t find it anyone have it?
http://www.handloads.com/calc/
Ballistics Calculator
Thanks but that is not it
Found it
link?
I found that I had already pulled it and just not labeled it. I still can’t find it on the forum, but I usually see it every few weeks. I wish they would create a “Chart/Table/Graph” Sticky:confused:
I’m teaching my 22yr old Bro-N-Law to shoot and am assembling a manual for him and wanted this chart for his training manual.
If you want it I will try and figure out how to post it here.
could you email it to william at nolatac dot com
This is it. I do think some of the longer offsets for the M4 are short, but like all things this is just a guide and not meant to replace a “confirmed zero”…for example at with my N4 Basic at 300 I’m -9 and at 400 I’m -24. This could be due to the fact that being EXTREMELY farsighted 
my rear ap is oval and not round so my windage is always spot on, but I tend to shoot vertical strings b/c I can’t ever really find the vertical center of the rear ap:(
wishes it had a chart for 20’’ barrels
The M16 column is for 20" barrels
I get the following:
Colt HBAR 20", temp 88, Winchester USA, 55gr FMJBT, Lot (NM32) ------- 3257 fps
Colt HBAR 20", temp 88, Federal XM192, 55gr FMJBT, Lot (Lot2) ---------- 3265 fps
Colt 16", temp 86, Winchester USA, 55gr FMJBT, Lot (HL42) ---------------- 3178 fps
Colt 16", temp 86, Federal XM192, 55gr FMJBT, Lot (Lot2) ------------------ 3153 fps
.