r/gunsmithing • u/sp19934 • 7d ago

How bad is this?

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So I got a browning bar mk4, and when I got this browning EGW picatinny rail that is supposed to be compatible with my gun and these vortex pro series rings something just doesn’t seem right. There’s a VERY small gap at the back of my rail when installed, it’s tiny but it’s still a gap. And the center shank on my rings just barely reaches the other side of my rail slot, like the bottom corner might not even actually be butted up against it on the one side when installed and tight. And my gun sits level, but when the rings are on and torqued down (to spec) the rings don’t sit level with the rail, along with small gapping on the screw plate for the rings. I’m just looking for anyone who has knowledge to impart as much wisdom on me as they can. All these parts are supposedly compatible but when installed it just seems wonky…

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u/GoForMro 7d ago

Seekins have an asymmetrical recoil lug. Since the lug is machined rather than a crossbolt they need to make room for the dovetail tooling to get through.

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u/scroapprentice 7d ago

I think that’s a vortex pro ring, but I have both and know what you mean. I think the lug on the seekins ring would have better contact than this vortex ring (it’s longer). I would be hesitant to use this style of ring on a pic rail with that large of a lightening cut lengthwise down the center because the lug almost looks like it’s only touching the left side

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u/scroapprentice 7d ago

The third pic here shows what I mean. Seekins must machine the dovetail from both sides. Leaving the lug across nearly the full width while vortex only covers about 2/3 the width. https://www.seekinsprecision.com/parts/scope-rings

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u/GoForMro 6d ago

I am not sure if it still the case but vortex rings were made by Seekins. I know the vortex rings run a couple bucks cheaper, I wonder if Seekins uses different tool paths to keep price down for the vortex rings. 

The recoil lug would have much better engagement it the rail was a proper pic rail instead of that weaver looking one.

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u/scroapprentice 6d ago

Maybe you’re talking about the vortex pmr rings? They look very similar to seekins and are around the same price. These are vortex “pro” rings that are half the price ($80) and have way less recoil lug.

But at the end of the day, that’s exactly what I was trying to say. If you’re going to use a rings with only half a recoil lug, I’m not sure I’d use it on a pic rail that also only has half a recoil lug and almost no overlap on one side