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 Post subject: hints for adjusting AO?
PostPosted: Sun Jan 25, 2009 9:27 pm 
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Joined: Fri Jun 01, 2007 11:36 am
Posts: 2220
Location: Nova Scotia, near Halifax
ok,
now that i know how very important getting my AO i looking for some help with it.
we know the reading on the factory ring is not accurate. an not all distances are always know.

so i thought i would ask the FT crowd how you know you set the AO correctly.
the only way i know is to move my head back and forth and see the the crosshairs don't move.
not perfect and a little bit subjective, but it is the best i have.

how do you do it?
any hints you can pass on?

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PostPosted: Mon Jan 26, 2009 12:23 pm 
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Location: canada
First, determine where you will make your measurements from. I use my eye behind the scope and since I shoot from the sitting position it coincides with where my butt is on the ground. I've found most scopes are set up this way from the factory. Next, set up a focus target (a glossy page from a magazine with that has different font and print sizes on it) and a measuring tape (the one I use is 200 feet long). Since my scope can focus down to 10 yards, that's where I sit my a$$ down and focus on the target. When the image is crystal clear, I print off a 10 label from my Brother P-touch, trim it to size and then stick it on my AO where the indicator mark is. I then move my bum bag back another 3 feet and repeat the process for my 11 yard marking etc etc. You will reach a point where the focus markings are too close to each other (for most of my scopes it's when you get out to 50 yards) and that's when I mark every 5 yards.
Note: It is normal to move your AO back and forth when fine tuning your focus. Just remember to always come to your final focus position from the same direction every time. This also applies to ranging a target in the field as well. It will give you the most accurate results.
Preparing a scope in this fashion is really where you can see the difference in scope quality. Things like clarity, repeatability and build quality become apparent!

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PostPosted: Fri Jan 30, 2009 10:01 pm 
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Location: Rosyth, Scotland
^^^ What he said... almost^^^

The only differance with me is I don't move, we have targets set at all the ranges and just work from there, I don't have to move :D

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PostPosted: Sat Jan 31, 2009 10:11 pm 
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Joined: Mon Nov 14, 2005 2:45 pm
Posts: 501
Location: Toronto, ON
quickreply7789 wrote:
ok,
now that i know how very important getting my AO i looking for some help with it.
we know the reading on the factory ring is not accurate. an not all distances are always know.

so i thought i would ask the FT crowd how you know you set the AO correctly.
the only way i know is to move my head back and forth and see the the crosshairs don't move.
not perfect and a little bit subjective, but it is the best i have.

how do you do it?
any hints you can pass on?


Some good points here, but fist let me ask, as it's not clear, are you talking about a scope with adjustable objective -a side wheel type or a front adjustment on the objective? If so, measure out a distance, then adjust the AO until it is crisp. Make a mark here and try again, see if it lands on the same spot. Always approach from the same direction, this is important.

There are several scope setup guides out there, Keyrigger has done a few I think.

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PostPosted: Sun Feb 01, 2009 7:57 pm 
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Joined: Fri Jun 01, 2007 11:36 am
Posts: 2220
Location: Nova Scotia, near Halifax
my scope has it on the forward scope ring. but i now see the huge atvantage of having it on the side ring. long reach and i can't put a larger ring on it. but i will remark it at know distanced (another reason to get a ranging device) :mrgreen:

thanks

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my other coil is a sub ohm
sub 500 .22 Crosman Phantom 500 open sites
sub 500 .177 Crosman TR77 NPS 4-16x40 UTG
sub 500 .177 Hatsan mod 33 with Quattro trigger open sites


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