Alright, I have my STEINER P4xi 1-4 in an Aero-precision mount (20.5 ounces) and the Leupy VX-6HD 1-6 in a GG&G FLT bolt-on (18.9 ounces).
To put it bluntly, I'm having a hard time deciding which to keep. It could be a coin toss.
Two things make it tough for me:
1) I'm not a huge glass snob, so at this level of quality, I'm having a hard time figuring out which is really best (I have a friend who's spent more time with scopes, and I'm wondering if he'll detect a difference).
2) I'm also messing with the placement to see if I can determine a clear winner in eye-box...the Leupold SEEMS to be winning, but I'm not 100% sure yet (both are non-QD, so it's hard to compare--need to borrow another AR).
In the head-to-head comparison, they're basically a tie:
STEINER P4xi 1-4 ($463): 20.5 ounces mounted in an AeroPrecision UltraLight extended mount.
PROS--what everyone says...great glass; great reticle for up close and still good for ranging at distance; it's the best "red dot" bright daylight visible dot I've seen (I know a few >$1600 ones are as good).
CONS--a little heavier than the Leupy (my mounts make up for this), 2X smaller, and the eyebox seems like it's a hair smaller at 1X (though I'm still messing with the placement of the scope); brightness knob is mushy, but easy enough to work (I'd worry a bit about overturning it back to an "off" position).
LEUPOLD VX-6HD 1-6 ($1219): 18.9 ounces mounted in a GG&G FLT bolt-on (non-QD mount -- these were tested as insanely solid; I think of it as a poor-man's Geisselle).
PROS--seems like equally good glass; great reticle for ranging at distance and good close-up; very lightweight (like 13.5 ounces); extra 2X is really nice for recognizing stuff past 300 yards.
CONS--reticle does wash out about 66% in bright daylight looking at a dark target (but glass is so clear you can actually see the black reticle ON the darkness); eyebox isn't quite as forgiving as what I'm used to with Accupoint 1-4 and MTAC.
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IF both were worth the same amount of money, I'd put them on the EE together and sell which sold first. I can totally live very happily with either.
My DREAM scope would be the LEUPY with ONLY the center dot lit up JUST like the STEINER dot (same size and brightness).
In reality, you can "tube" shoot anyone at in-house distances of less than 12Y just by centering them in the scope, so Home Defense is a almost a tie between the bright STEINER and the larger segmented circle reticle of the Leupold (the overall 3Y-50Y edge has to go to the bright Steiner IMO, but the Leupy is closer to what I'm used to with the Accupower and MTAC).
The hash-marks on the Leupold are much easier to see but they don't seem bigger, so it's a lot easier to get on the 600Y hash-mark (I was putting the 600 mark almost on the bottom of my target, and ringing a 12"x18" steel at 540 yards--the Leupy was much faster and had fewer fast follow-up misses due to the reticle and the extra 2X).
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Which to keep???
My thinking is that I'd only lose $30 on the STEINER, but I'd probably lose $100-$150 on the LEUPOLD, so I should sell the former and keep the latter. But another part of me says take the hit, sell the LEUPY, and spend the extra money on bills and ammo.
ETA:
Since there's NO real data on the VX-6HD online, I called Leupold. I was told the exit pupil was 24mm to 6mm. I told them that this was true in theory, but impossible in reality. He's going to get back with me after talking to an engineer.