FPS?
First Person Shooter video games, a la Doom, Serious Sam, and the like.
Aha
I’m left-handed and really appreciated the brass deflectors the Army had.
UncleBill,
Ya got rank on me, but it sounds like we’re both shooters. Your post presents the same logical argument that mystefied me everytime it didn’t apply to reality at the range. 
For what it is worth, the former Commanding Officer of Weapons Training Battalion at Parris Island agrees with me. My parents are visiting this weekend. He has rank on me.
UncleBill - Please render to the old salt my belated “Happy 4th of July” salutations. I assume you mean that he agrees with your description of aiming the M16 using iron sights, right? How does the revered Charlie Oscar sight-in his 'scoped piece? I have been doing it for years in an abbreviated form and was wondering if it is common practice. I am therefore very interested in all the accumulated wisdom the ranking officer can impart on the subject.
Yeah, I just talked to my brother, and he says the same thing about the theory not really working in practice.
I argued that if you have 4 items (eye, piece 1, piece 2, and target) in a line, then you have to hit the target the same as anyone else.
He says that it sounds good, but that for some reason people tend to look at the sights differently (I think that’s what he meant), and will tend to not hit the bullseye without adjustments.
I am at work (see my location and occupation), but if I wasn’t, I would try this experiment: snug a rifle into a sight-vise (mine is a Stuart Site-Vise, made by Lohman) after carefully aiming at a target 100 meters/yards away. Then, ask another person to look down the sight plane and describe what they see. My guess is that both people will see the exact same thing. It’s the holding and aiming that gets tricky, in my opinion. It’s the week-end; can anyone accomplish this experiment?
Cardinal - your brother may be describing “parallax error,” which does indeed come into play with telescopic sights or if a person concentrates on just the front sight and disregards the rear sight on firearms without a 'scope. For optimum performance, many people focus on the front sight, but keep the rear sight in their peripheral view - this makes the rear sight “fuzzy” and the target “fuzzy” with the front sight in sharp focus. I know it sounds kinda ginchy, but it works better than I can describe.
“parallax error” …suits me. :dubious:
Any more on Are there any automatic pistols manufactured that eject on the left?
I guees M-16 fact/myth querks deserves its own thread. VERY sorry for the hijack, dnooman.
Alas, he doesn’t do scopes, either, radar ralf. Hunting was with shotguns and one non-scoped rifle. Hence my lack of experience with them myself.
Because of this and several other threads here in SDMB-land, I have decided to start a thread in MPSIMS about info that shooters/reloaders might be interested in having. Please join me there to share any interesting info you have.