1-4x vs Micro...

[Egret18]

I've found for me having a fairly strong astigmatism that if the optic doesn't have really close to true 1x I get terrible barrel distortion. I'm "ok" with my micros. I got a Leupold mk6 1-6 and the distortion is bad enough I can't use it.

I am still a bit green when it comes to AR's, what you mean by barrel distortion?

[shootist~]

I've found for me having a fairly strong astigmatism that if the optic doesn't have really close to true 1x I get terrible barrel distortion. I'm "ok" with my micros. I got a Leupold mk6 1-6 and the distortion is bad enough I can't use it.

I've never heard of this (unless by some other name, maybe). What is barrel distortion?

[faster200]

I wonder if Will meant a distortion looking through the "barrel" of the scope. Even at 1x with both eyes open I don't think I will be as fast as an Aimpoint or Eotech at closer ranges. Training will most definately help with that if I can dig up more ammo.

[williamTkilla]

Its a form of optical distortion from looking through a tube optic. I believe some liken in to "fish eye". To me it happens with the illumination off. With it on, on said scope, its a blurry nightmare.

http://www.andromeda.com/people/ddye...inal-small.jpg

[faster200]

I see what you mean. I get a slight "fish eye" distortion. I didn't even notice it until I started looking for it. I only notice it if I am looking through my scope through the window blinds. If I don't have a straight line as a reference I don't notice it at all. It would seem illumination does not affect the distortion one way or another. This is in regards to my Vortex PST. I can't speak for other models or makes.

[RogerinTPA]

I have focus issues with the dots without corrected vision and being near sighted with regular sunglasses. The dot is a distorted blob, so my accuracy degraded until I finally checked my ego and got my vision evaluated. I then converted all of my sunglasses to prescription so you may wanna get your eyes/prescription checked out. It could make a difference in how you perceive things through an optic.

I do have 4 H-1s, two are 4 moa and two are 2 moa. I've had no issues in accuracy with either, shooting out to 300 yards. When I first got the 2 moa dot H-1s delivered, the 4 moa H-1s got transferred to a shotty (1187) and one to an AK variant (SLR-107F). Earlier this month during an EAG carbine operator course, I was able to put 5 shots within the diameter of a dime at 50 yards using a 4 moa H-1 with my Mk-18 while zeroing. I wouldn't have been able to do that with normal sunglasses. I was very surprised to be able to get good groups at 100 yards with my AK with the 4 moa H-1 as well. I do have a Meopta 1x4 scope with a cat tail on my DD LW Middy, and was effective from close in at 1x to 400 yards at 4x, but it added some pretty noticeable weight to the weapon, so it is a trade off.

[MiamiAttorney]

I have focus issues with the dots without corrected vision and being near sighted with regular sunglasses. The dot is a distorted blob, so my accuracy degraded until I finally checked my ego and got my vision evaluated. I then converted all of my sunglasses to prescription so you may wanna get your eyes/prescription checked out. It could make a difference in how you perceive things through an optic.

I do have 4 H-1s, two are 4 moa and two are 2 moa. I've had no issues in accuracy with either, shooting out to 300 yards. When I first got the 2 moa dot H-1s delivered, the 4 moa H-1s got transferred to a shotty (1187) and one to an AK variant (SLR-107F). Earlier this month during an EAG carbine operator course, I was able to put 5 shots within the diameter of a dime at 50 yards using a 4 moa H-1 with my Mk-18 while zeroing. I wouldn't have been able to do that with normal sunglasses. I was very surprised to be able to get good groups at 100 yards with my AK with the 4 moa H-1 as well. I do have a Meopta 1x4 scope with a cat tail on my DD LW Middy, and was effective from close in at 1x to 400 yards at 4x, but it added some pretty noticeable weight to the weapon, so it is a trade off.

Ok, very cool to hear you can get that kind of accuracy even out of the 4MOA H1. Although -- and correct me if I'm wrong here -- isn't a dime-sized group at 50 yds significantly less than 4MOA? And therefore wouldn't the difference between a dime-sized group and a 2-inch group be (somewhat) attributable to chance?

[RogerinTPA]

Ok, very cool to hear you can get that kind of accuracy even out of the 4MOA H1. Although -- and correct me if I'm wrong here -- isn't a dime-sized group at 50 yds significantly less than 4MOA? And therefore wouldn't the difference between a dime-sized group and a 2-inch group be (somewhat) attributable to chance?

50 yards approximates to 1/2 moa and isn't that really significant a distance when judging accuracy, especially when not shooting a precision weapon, optic, and ammo, but that is the distance we zero'd at. When you factor in I was breaking in a new unfired 10.3" barrel SBR at a carbine course with a loaner H-1 and PMC ammo, I'll take that as pretty good. Also, I've been shooting enough, in precision marksmanship (numerous military rifle teams), tactical training and individual practice over the past 36 years or so to know that where that bullet goes has nothing to do with chance. Either I put it all together to call the shot, or I screwed the pooch trying to get it all dialed in and took a shot I shouldn't have taken, resulting in a less than desirable outcome.

[shootist~]

Shooting to or very near the potential of the rifle is not an issue with an red dot. This has been proven many times.

It's helpful to have a target that aids you to consistently center the dot the same way for each shot. For example it's pretty easy to center a 2 MOA dot inside a 2" bull (50 Yds); or a 4 MOA dot inside a 6-8" bull at 100 yds and so on.

[Shoulderthinggoesup]

If your considering the tr24... Try to get some eye time behind a burris mtac as well. Imo the mtac has a much more forgiving eyebox and better reticle for less money.

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