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Posted: 3/15/2008 7:35:55 PM EDT
| well im trying to figure out which sight i want. Does anyone have any experience with the 557? I like how the buttons are on the side because i wanna do a magnifier. i was wondering how accurate the multi dot "pre sighted" reticles are. Im thinking different grains with different velocities throw it off any. Of course it will be sighted and shot with one kind of ammo i dont know how i feel about the set up. The concept is great, but if anyone knows a thing or two about the 557 help me out please. THANKS |
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I hemmed and hawwed over this as well. From Eotech's website: 
I would surmize if you're using anything but mil-spec ammo and a .223 14.5" barrel the bullet drop reticle will be a little off due to different trajectories. In any event, I'd like to use my Eotech for different calibers and rifles, so I ended up ordering the 552 with the center dot reticle from GG&G with the Accucam. Should get here Friday. 
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This is the 557 reticle........Wouldn't this serve the same purpose as the ACOG stadia lines? |
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I think what raven means is there is no way to range your target with the rectical of the scope, for example the SVD dragunov has brackets that a 6' target will fit in at each given range, therefore giving you an approximate range. Personally I have never had a problem judging range but some people do and need an assistance |
557 reticle data: The reticle circle is 65MOA The center vertical target dots are 1MOA Attempting to verify: The reticle circle band width is 2MOA The reticle posts are 4MOA Ranging is easy with the 557. |
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While it may have some very rudimenty ranging capability, I can tell you I'd much prefer my TA31F ACOG at anything over 200-300M. Don't get me wrong, I own an Eotech as well and like it alot. It is however, a CQB optic and even with a Magnifier behind it, the 557 reticle would still be much slower than an ACOG or similar optic. |
Ok, I'm a little slow....could you show me the math? -Chris |
65MOA reticle circle: At 100 meters, the reticle circle equals 65 inches. At 200 meters it equals 130 inches. At 50 meters, it equals 37.5 inches. 1MOA target dot(s): At 100 meters, the dot equals 1 inch. AT 200 meters, it equals 2 inches. At 600 meters, it equals 6 inches. so forth... If you know the size or dimensions of the intended target, you can get a good range (distance of target) by using the reticle. Example: A baseball sized object (about 3 inches in diameter) will equall the size of a target dot at 300 meters. |
Me too. I have a 557 and am using it on a 20 inch Bushy. With 62 grain reloads, the bullet drop recticle works great for me. The length of the barrel has a negligable impact on how the 557 works. You simply zero it at 25 yards(meters). Yes, I said 25 yards; as per the directions. This will get you dead on at 300. The 400, 500 and 600 meter recticle will get you around center of mass on a siluette; at those distances. |
I see....makes sense....it might take me a little time to get quick at these mental computations. Thanks! -Chris |
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