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Posted: 5/28/2003 8:20:56 AM EDT
| I considering buying an ACOG due to all the cool pics and talk about them. I have a Bushmaster A3 Shorty. It's the 14.5" barrel with the 1.5" muzzle break. Im pretty certain that I want a donut reticle. That means I can get the TA31 or the TA11. But what about the BDC of each one? I still want to be able to use it without having to adjust for differences. Now I know the TA31 is calibrated for a 20" barrel, mounted to the carry handle and shooting 55gr bullets. What about the TA11? |
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Quoted: A 14.5" barrel with the new 75 or 77 grian round mounted directly to your flat top using a TA11 with .308 donut reticle will track all the way out. There will be of course differences due to the pressure its loaded to but in general its a perfect match. What about a 55 grain (M193) round through a 14.5" barrel and flattop? Is there a donut reticle for that? |
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Quoted: For a Flattop 14.5" firing M193: Sight in per your manual but at 50yds (or sight in 1.5" high at 100m). You'll be high at 100; but virtually dead on until 600 where you'll be 12" low. This is in the link at the top of the forum. You should check it out. Yeah, thanks, man. I was reading through that earlier today. I knew that Trijicon has several different models of ACOGs and I was just hoping that one of them was calibrated for a flattop/14.5"/55gr. I guess not, huh? |
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