Notice: This website may or may not use or set cookies used by Google Ad-sense or other third party companies. If you do not wish to have cookies downloaded to your computer, please disable cookie use in your browser. Thank You.

Sunday, July 29, 2012

Survival Firearms: Dot Scopes and Zeroing

Anonymous sent a comment on a prior article about Zeroing the M4 Carbine: ”To zero the scope, why not just keep the rear-flip-sight up and while maintaining sight alignment with the front sight, adjust the red dot to coincide with the sight alignment of the iron sights?”.

UrbanMan’s reply: What you are describing is actually how you do a mechanical zero on the dot scope before you head to the range to shoot live and adjust the scope zero from there. There are a many people who have zero’ed a lot more dot scopes than me but I have done my share. After I mount the scope, and with a rifle/carbine that have already been zero’ed with iron sights, I would do as you suggest:

With a weapon on a stable surface, I will flip up the BUIS (Back up Iron Sights) and looking through the rear sight using the smaller peep sight, I wll use the windage and elevation screws on the scope to put the top half of the dot on the top of the front sight. Again, this is a mechanical zero. You will still need to shoot live ammunition and make adjustments, mostly likely fairly small adjustments on the scope.

I received another question from Jer4421 asking ”If the EO Tech was a good scope and what reticle type I would choose.”

UrbanMan’s reply: I am aware that EO Tech has different reticles available, however I became comfortable with the circle dot reticle. Once you get used to something and get older, comfort is important.  I mainly use these three dot scope:  the EO Tech with the circle dot reticle; the standard single dot Aimpoint; and, the circle dot reticle of the Leupold CQT scope. 

However, I'd have to say I prefer the EO Tech’s scopes on a couple of my M-4’s. Both are Model 552 which are night vision compatible. I have the circle dot reticle with the 65 MOA circle and 1 MOA dot - see photo of this reticle at the top of this post.  If I had to buy another EO Tech, I would look very closely at the AR223 reticle, however I’m happy with the Model 552 and standard reticle. If you do not have a need for night vision compatibility, then you can probably save a hundred bucks or more going to the Model 512.

When I first got a Model 552 I remember being told the battery life was 70 hours. But I asked around since I received your question and 100 hours and then some seems more the norm. The EO Tech have a cut off or automatic turn off feature so in case you inadvertently leave the dot on it will turn off in 8 hours, or you can change that to 4 hours.

No matter what scope or reticle you use, the most important factor is competency born by many sweaty hours on the range making it second nature to mount the rifle/carbine, acquire a sight picture and engage your target accurately.  

But's it not just about accurate shooting.  Clearing stoppages, changing magazines, shooting from disadantaged positions,...recognizing cover and using it correctly,....and a host of other skills.  Good luck to you on your venture with dot scopes.    

No comments:

Post a Comment