How accurate would my rifle be at 400 yards with iron sights and M855?
I had no idea. So I gave it a shot. I found a USGI rear sight that I didn't even know I had a few weeks ago and put it on my beater AR. I went out to zero it today. Ammo was PMC X-Tac M855.
http://i1328.photobucket.com/albums/...ps6180b5f7.jpg
Squint very very hard...it's out there.
http://i1328.photobucket.com/albums/...psdc131139.jpg
I actually missed a round of shooting because I couldn't see the center of the target from that distance. When it went cold again I had to take the target off and spraypaint a "man" in black behind the target to give some definition. I figured being similar to the echo target would give me a warm and fuzzy.
I had a pretty good zero at 6/3-6 (100yards) so I put it on the 400 yard setting and this was the result. I made absolutely no windage adjustments whatsoever (Because there was absolutely no wind - Read: Hot.). I was blown away. I couldn't see any of my impacts due to mirage and just fired 12-15 well aimed shots at the target. I think some of the flyers were due to eye strain, an 8" circle is just absolutely nothing at that distance.
http://i1328.photobucket.com/albums/...psbb340d52.jpg
I was more impressed with the ammo than I was with the rifle. It's easy to bang out targets at 300 yards with an ACOG, but I think I'm going to do some iron-sight builds more often. Too many people jump straight into red dots. I didn't realize how much I enjoy using irons. So simple, they never run out of batteries, and you don't freak yourself out watching them dance all over the place due to magnification.
I also zero'd my 11.5" BCM at 200 yards. No pics, but the 2 MOA aimpoint really helps with long distance shooting. I've also realized it is damn near impossible to shoot from the bench with a vert grip.
http://i1328.photobucket.com/albums/...psd4169973.jpg