back in the infantry in 1999 this was correct....
Quote:
Originally Posted by
Sgt_Gold
The large (0-200) rear sight is used for two things. Zeroing at 25 meters, and night firing with iron sights. If you're zeroing at 50 meters\yards then use the small rear sight.
But not today - there were a lot of things the military did back in the day that were just plain wrong. The large aperature is used for firing at close range, it is ballistically matched (ish) to the rifle for ranges from 0-200 meters. the smaller apperature is for ranges 300+ as stated earlier in the thread.
That being said, and to echo what others have said; as long as you understand the slight height differences between the small app and large app on the standard carry handle sight, and apply that knowledge when you zero... no big deal.
TO THE OP:
you can also zero your weapon with a 100 yard zero, Rob S (I believe) preffers this method and has posted about it before - I have taken a liking to it and have re zero'd my carbine that way... haven't had any real good chances to push the rifle or myself hard with the new zero yet, so I can't speak to how well it works. Soon.