Ok, some clarification may be in order here.
The ARMS #5 w/Leupold as seen on my Colt has been just fine returning to zero, when it's swapped with the carry handle sights for iron sight use and back.
Now, somebody's going to have to explain to me that my setup is "awkward", due to the 3.5" of eye-relief. I shoot nose-to-charging handle with my issued M16A2's when Uncle Sam grades me on my shooting performance, and on my own time when this Colt is configured with it's carry handle sights. When it carries glass, I move my head back along that straight stock comb, the gun isn't shooting over barricade or from behind cover in that configuration. My cheek weld with that eye relief location feels just fine. You don't suppose my neck's too short, do ya? I don't wind up with nerve damage, nor do I feel fatigued, nauseated, achy, moody, crampy, bloated, agoraphobic, anxious, manic, depressed, unloved, homicidal, crapped-upon, squirrely, bulemic, schizophrenic, suicidal, envious, apprehensive, claustrophobic, or suffer penis envy. So what am I doing wrong by mounting the scope where I like it, hmmm? Missing some sort of tactical advantage? Not serious enough per the rules at
www.AR15.com and their professionals? Darned blue helmets marching up my street and all. I suppose I could put more black bits on, or add battery-powered devices that emit and suck in other portions of the electromagnetic spectrum as penance. Of course, the prairie dogs would probably hold in my sights a little bit longer as they laughed and pointed, could be a good thing.
This is funny:
If your rifle has the chrome lined NATO chamber on it you aren't gonna get match grade accuracy with it no matter what ammo, scope, or mount/rings you use with it. No need for the expensive mounts/rings or scope in my opinion. Although I know 'wants' are much different than 'needs' to most folks.
Well, let's see. I get to dig out my sub-MOA 100 and 200 yard targets, as fired with my Sierra MatchKing handloads and that old Colt Competition HBAR, icky-pooey chrome-lined barrel innards and all, then get rid of the targets, scope, rings, and mount. Why? Because that particular combination, per somebody's gospel, just ain't supposed to happen. It ain't right, it ain't natural, an abomination in the eyes of the Almighty. Cheese & rice, people, maybe we should give up actually shooting guns and trying different things, it's a hell of a lot easier to just propogate myths and disinformation. Based on that argument, I'll wager HK's and Desert Eagles don't shoot worth sour spotted owl ****, either.