Curious if anyone's ever installed a Special Interest Arms scope mount on their #4

[SDWriter]

The Fulton mount isn't offset to the right.

Thanks! This is the first plain-English answer to my question. I think your previous reply of "It collimates easily..." wasn't really an answer sufficient to my... let's say, less technical understanding of the subject. From what I know at this point, collimation just means that the scope axis and bore axis are in perfect parallel. But since a scope wouldn't need to be at exactly 12 oclock for this to be true; could be just as parallel at 11:30, 12:10, or 8:00, that info still left me unsatisfied. Until now.

I am sure that the ATI is made less expensively and is less well designed. Making it the way they did is probably easier to do and they can start with a smaller piece of metal. To do this "right" I assume that Fulton starts with a wider piece and just needs to machine off a bit from the left side.

I just whipped up a crude modification to my earlier image to show, in case anyone is interested, what I'm talking about with all this centering over the bore blah blah blah.

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[SDWriter]

I hope it's not bad form to share a pic that I found on another board. Here is one of the better pics I have found of the Fulton mount in use. I do like the positioning a lot. So many of the cheaper ones are kind of stubby. First modern mount I ever saw for the #4 was the CAD Tecknik (however it's spelled). That one had the scope sitting too high and too far back for my taste.

I find it interesting that this Fulton's owner has his scope sitting all the way to the rear. Must just work best for his comfort and needs, and eye relief of course. It has me thinking that perhaps the SIA mount's rail might actually be a skosh farther forward than ideal for some shooters/scopes, since its rail is positioned entirely forward of the charger bridge.

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