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 Post subject: mec swap
PostPosted: Mon May 08, 2017 7:49 pm 
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Joined: Thu Aug 26, 2010 1:18 am
Posts: 42
Location: new zealand
Is anyone using one of these for using left eye and right hand rifle ?The offset sights are too fiddly for different distances.


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 Post subject: Re: mec swap
PostPosted: Tue May 09, 2017 2:32 am 
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Joined: Sun Sep 04, 2016 10:59 am
Posts: 425
Location: A new global Great Britain
I am also going to need one of these and would like to hear from anyone using one on a Centra Pro 57 or similar design sight base.

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 Post subject: Re: mec swap
PostPosted: Tue May 09, 2017 2:16 pm 
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Joined: Fri Aug 15, 2008 5:28 pm
Posts: 132
Location: S.E. Wisconsin, USA
I saw this style offset today for the first time. (might be old news)

https://www.euroshooting.eu/en/index.php?detail=1015


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 Post subject: Re: mec swap
PostPosted: Tue May 09, 2017 6:07 pm 
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Location: A new global Great Britain
Shooterer wrote:
I saw this style offset today for the first time. (might be old news)

https://www.euroshooting.eu/en/index.php?detail=1015

The MEC swap is not so affected by cant as that simple front and rear bracket offset. The MEC with its prisms looks down the normal front and rear sights. Only the iris moves to the left.

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 Post subject: Re: mec swap
PostPosted: Wed May 10, 2017 5:23 am 
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Joined: Mon Jan 03, 2011 11:33 am
Posts: 1248
Location: Taunton, Somerset
TenMetrePeter wrote:
The MEC swap is not so affected by cant as that simple front and rear bracket offset. The MEC with its prisms looks down the normal front and rear sights. Only the iris moves to the left.


Peter, if you're canting to get your head behind the sights, which is the usual reason to cant, periscope sights may allow you to have the gun upright.


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 Post subject: Re: mec swap
PostPosted: Wed May 10, 2017 6:35 am 
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Joined: Thu Sep 10, 2015 7:36 am
Posts: 34
Location: France
If you're competing, check if it's allowed by your rules.

In ISSF, it's not yet clear if multiple mirrors (like the swap) are allowed as part of the rear sight. The new rules allow only one "external glass system". Better ask first to the range officers.

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 Post subject: Re: mec swap
PostPosted: Wed May 10, 2017 7:39 am 
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Joined: Mon Jan 03, 2011 11:33 am
Posts: 1248
Location: Taunton, Somerset
Piefou wrote:
If you're competing, check if it's allowed by your rules.

In ISSF, it's not yet clear if multiple mirrors (like the swap) are allowed as part of the rear sight. The new rules allow only one "external glass system". Better ask first to the range officers.


I believe that periscope sights have been permitted previously. Besides, mirrors are not lenses.


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 Post subject: Re: mec swap
PostPosted: Wed May 10, 2017 10:53 am 
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Joined: Sun Sep 04, 2016 10:59 am
Posts: 425
Location: A new global Great Britain
yes they are permittes Rule 7.4.1.6 allows any prism or mirror device to swap eyes so long as no magnification is provided. it must be used as intended to swap eyes eg left eye from right shoulder.

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 Post subject: Re: mec swap
PostPosted: Wed May 10, 2017 11:01 am 
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Location: A new global Great Britain
Tim S wrote:
TenMetrePeter wrote:
The MEC swap is not so affected by cant as that simple front and rear bracket offset. The MEC with its prisms looks down the normal front and rear sights. Only the iris moves to the left.


Peter, if you're canting to get your head behind the sights, which is the usual reason to cant, periscope sights may allow you to have the gun upright.


Possibly not in my case. This device shifts 65mm but my IPD is 67mm so 2mm extra cant may be required! But I take your point it can give a more comfortable position.

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 Post subject: Re: mec swap
PostPosted: Wed May 10, 2017 6:47 pm 
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Joined: Fri Jan 01, 2016 1:38 am
Posts: 67
Location: Melbourne, Australia
A person at our club has recently started to use a MEC swap, and someone else is getting one also I believe. I haven't used it, but the feedback from those users is that you need to be DIRECTLY and perfectly straight behind the Iris or you dont get a sight picture, or something like that. So it's not like a normal setup where you can be off to one side by a fraction and still have a sight picture, granted in that case you are introducing inaccuracy, but you get the idea.


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 Post subject: Re: mec swap
PostPosted: Thu May 11, 2017 1:34 am 
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Joined: Thu Aug 26, 2010 1:18 am
Posts: 42
Location: new zealand
Thanks for the replies.I only realised how bad my right eye had got when testing a left hand rifle.


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 Post subject: Re: mec swap
PostPosted: Thu May 11, 2017 2:37 am 
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Posts: 425
Location: A new global Great Britain
GeraldC wrote:
Thanks for the replies.I only realised how bad my right eye had got when testing a left hand rifle.

Same here. MEC Swap £230. Cararact op £2000 and it may not be the problem anyway. When the black merges into the white on the card decisions have to be made.

EDIT. Its an epiretinal membrane (cellophane eye) which is not really operable til sight is obscured completely due to risks.

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Last edited by TenMetrePeter on Wed May 24, 2017 3:22 pm, edited 1 time in total.

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 Post subject: Re: mec swap
PostPosted: Wed May 24, 2017 2:20 pm 
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Joined: Sat Jul 21, 2012 6:03 pm
Posts: 9
Does anyone in the US sell this item? Does it adjust width wise? Not everyone has identical eye spacing.


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 Post subject: Re: mec swap
PostPosted: Wed May 24, 2017 3:12 pm 
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Joined: Sun Sep 04, 2016 10:59 am
Posts: 425
Location: A new global Great Britain
hipwr223 wrote:
Does anyone in the US sell this item? Does it adjust width wise? Not everyone has identical eye spacing.


This UK supplier will ship to USA for £20 on top of £230 price.

http://www.intershoot.co.uk/acatalog/Si ... ement.html

Fixed at 65mm IPD. most people between 60 and 70 but there's a lot of flexibility by canting . youre only looking thru one side!

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 Post subject: Re: mec swap
PostPosted: Wed May 24, 2017 10:48 pm 
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Joined: Fri Jan 01, 2016 1:38 am
Posts: 67
Location: Melbourne, Australia
hipwr223 wrote:
Not everyone has identical eye spacing.


It doesn't adjust width wise and I don't think it needs to. Not everyone has the same cheek/jaw/eye geometry either, this is what your cheek piece adjustment is for. It will also cater for the eye width variation - adjust your cheekpiece to get your non-cheekpiece behind the MEC swap.


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 Post subject: Re: mec swap
PostPosted: Thu May 25, 2017 6:58 am 
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Joined: Sun Mar 13, 2011 3:00 pm
Posts: 283
Location: Louisville,TN
hipwr223 wrote:
Does anyone in the US sell this item? Does it adjust width wise? Not everyone has identical eye spacing.

PM sent

Ed


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 Post subject: Re: mec swap
PostPosted: Tue Jun 27, 2017 6:43 pm 
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Joined: Sat Jul 21, 2012 6:03 pm
Posts: 9
I was fortunate to have the opportunity to buy one of these from another forum member and my first time on the range with it showed much promise. In fact I think this device is going to get me back on iron sights competitively.


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 Post subject: Re: mec swap
PostPosted: Thu Jul 13, 2017 2:37 pm 
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Joined: Fri Aug 15, 2008 5:28 pm
Posts: 132
Location: S.E. Wisconsin, USA
https://oberleenterprises.com/product/mec-swap-comfort/

On sale in Ohio

Edit:
Nothing to see here, move along.... Peter corrected me below (unless your eyes are really close together)


Last edited by Shooterer on Thu Jul 13, 2017 4:34 pm, edited 1 time in total.

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 Post subject: Re: mec swap
PostPosted: Thu Jul 13, 2017 4:10 pm 
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Joined: Sun Sep 04, 2016 10:59 am
Posts: 425
Location: A new global Great Britain
Shooterer wrote:
https://oberleenterprises.com/product/mec-swap-comfort/

On sale in Ohio

That one is to allow the rifle to be held vertically lower. the one for right to left eye swap is bigger.

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