New scope AO or no

thumbs · #1 05-09-2012, 07:49 PM

Simple is better right???? Kiss so to speak.

I am getting ready to get another scope for the Sport. I am looking at a 6x24x42 or there abouts.

Now for the question. Other than being able to focus more clearly(or so they say) what is the advantage of the AO? I ask because I am in the process of sending a pretty good scope back because the AO is giving me problems and I can't get a clear image through it. If there isn't much of an advantage I'll get the one without it and have less chance of a problem down the road. I know you are supposed to be able to range find with them also but I never had much luck with that.

I will be shooting from 0 to 250, or so, yards. At least that is my intent.

thanks for the help

s&wchad · #2 05-09-2012, 08:09 PM

With an adjustable objective or side focus scope, you can correct the parallax error for given distances. Most centerfire scopes are corrected for 150 yds, most rimfire scopes are corrected for 75 yds. Parallax error is the relative movement of the target with respect to the crosshairs when you're not looking exactly through the center of the scope. It's eliminated when the crosshairs and the target are focused the same distance from the eye (in the same plane).

It's obvious when you use a scope not corrected for a given distance, have the rifle securely braced in sandbags or a machine rest and slightly move your eye right, left, up or down. You'll see the crosshairs move off target, even though the rifle didn't move. It can account for about 1/2" of error per 100 yds.

Gunslinger808 · #3 05-09-2012, 08:15 PM

With a higher powered scope Paralax becomes a problem without an adjustable objective.
Another thing I do is stick to fixed power scopes (10X), if you're happy with an adjustable to 24 power scope then more power to ya (pun intended).
I personally think it's way more scope than you'll ever need on an AR, especially a 16" barreled one.

oneyeopn · #4 05-09-2012, 08:24 PM

There are lots of schools of thought on this. I myself use an AO but that it because the way I hunt for Prairie Dogs, the first shot might be 100 yards and then the next one maybe 250 yards and then the next could be only 75 but you normally dont get but one shot and you need to be able to focus in on your target, less expensive AO's are iffy but midrange ones I have had good luck with, it is also something else to adjust and to practice with. It is something that you must learn to use in order to use it correctly. We are all allowed our opinions but the Sport is a very accurate gun out to 300, in fact it is more accurate than most of us are capable of shooting. I just came in from PDog hunting when you can just see a little brown spot moving a X10 power is not going to cut it. the cross on your reticle will be bigger than your target. We played around a lot with x26 to x32 today, my cousin didnt have the patience to shoot a shot or two and then set back and wait for the close ones to come back up. LOL

thumbs · #5 05-09-2012, 08:31 PM

Quote:

Originally Posted by s&wchad

With an adjustable objective or side focus scope, you can correct the parallax error for given distances. Most centerfire scopes are corrected for 150 yds, most rimfire scopes are corrected for 75 yds. Parallax error is the relative movement of the target with respect to the crosshairs when you're not looking exactly through the center of the scope. It's eliminated when the crosshairs and the target are focused the same distance from the eye (in the same plane).

It's obvious when you use a scope not corrected for a given distance, have the rifle securely braced in sandbags or a machine rest and slightly move your eye right, left, up or down. You'll see the crosshairs move off target, even though the rifle didn't move. It can account for about 1/2" of error per 100 yds.

Hey thanks for the right to the point answer. Ok just so I get it. The idea is if the scope,AO, is focused at a distance even if your eye is off the center of the scope a bit your shot will be more accurate. Ok I'll get another AO.

thanks

thumbs · #6 05-09-2012, 08:54 PM

Thanks, You guys were typing I guess I was typing and posting. Anyway thanks to all.

I am hoping to get after those little PDs this summer during our trip. That's the reason for the x24 scope. My x12 just crapped out on me and the only spare I have is a x7. I know that won't cut it.

I will be getting the broke scope back,life time warranty, but it may take a while. Just wondered if it really made that much of a difference? I have a few of the AO's but really didn't think that much about it. I was just curious as to what you guys thought.

I can't afford a high dollar scope. Like I said in another thread I'm thinkin about the Tasco Varmint 6x24x42 AO. I have a lesser power Tasco now. As a matter of fact it's the one I just put on the Sport as the replacement. It works pretty well but the range marks are off. LOL