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Hmm...that's a bummer.
Shooting limited in 3 gun was one of the reasons I was thinking about it.
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Non-magnified optic (as in 1x dot prismatic type or plain red dot) is best kept at the simple dot. BDC for anything out to 400 yds (99% of targets in 3 gun matches) is useless, way too clutter to see. A prime example of what looks good on paper doesn't translate to practical usage is the Burris AR1X with bdc. Its open hash marks are 18" apart with the idea of fitting an IPSC sized target inside. However, at 1x, to maintain correct bdc for 556, the marks are way too close together. I tried it for one single match and pulled it off immediately after. Perhaps okay for when you're just plinking, but in a match under the clock, there is no time to waste finding the target within the cluttered reticle. I use the Leupold Prismatic 3 moa dot for hold over for targets beyond 250 yds (zero distance of my 55 gr blitzking load), very simple and quick.
Best 1x out there right now is the old Leupold Prismatic. Ignore its piss poor illumination (don't need it anyway since reticle is etched, but coming from Leupold, this illumination design is well below par). Too bad the Prismatic is discontinued. The closest rival is Vortex Spitfire, the only thing negative about it is its factory mounting height, its a tad too high for me so I put it on my practice gun. Burris is supposedly working on a replacement reticle for its AR1X with input from 3 gunners, but this has been put on the back burner due to other hot projects in front.
ETA - Another interesting option I saw this year at one of the matches, a customized Nightforce 1-4 that has bdc with its power ring permanently disabled by a custom shop. Not cheap I'm sure but its legal in 1x/limited class.