Marlin Model 56 Lyman 66MD Peep Sight Question - RimfireCentral.com Forums

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Old 03-04-2018, 11:17 AM
dmthomp32

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Marlin Model 56 Lyman 66MD Peep Sight Question



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I recently purchased a model 65 from gunbroker, it arrived in what I'd consider good condition. Seems to function perfectly until I installed my also newly purchased Lyman 66MD peep sight. Apparently the screws sent with the sight (eBay) were not original and while they are the correct pitch/thread and install perfectly. They are too long. They travel to far into the receiver and actually impact the bolt upon cycling the action, literally stopping the bolt in it's tracks. I've contacted the seller of the peep site, I'm not keen on sending it back as I may not find another for some time. Anyone here know either the correct screw/depth? Or have some random laying around I can purchase? Thanks!!

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Old 03-04-2018, 01:27 PM
JeffWarner
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Id probably true to shorten them, but if you are looking for replacements...Id try Lyman. They still carry the mounting screws for a few models and may while not marked for the 66md; may fit


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Old 03-04-2018, 01:58 PM
dmthomp32

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Quote:
Originally Posted by JeffWarner View Post
Id probably true to shorten them, but if you are looking for replacements...Id try Lyman. They still carry the mounting screws for a few models and may while not marked for the 66md; may fit


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Thanks for that Jeff. I had considered shortening them but was unsure of the depth they need to be. I guess I could dissemble the rifle again, pull the bolt, reinstall the sight and look inside to see about how much is showing inside the receiver.

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Old 03-07-2018, 10:18 PM
Singleshot22

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I installed a Redfield peep sight on my "56" not too long ago, and had the same concerns about the screw length for a slightly different reason. No reason to disassemble the gun to see how much space is available. I just used a "mag light" and looked in the mounting holes with the bolt retracted (lever down). Easy to see the side of the bolt. Then used the end of a paper clip inserted into the holes until they hit the side of the bolt. That pretty much tells you how much space you have for screw length. Worked for me anyway.
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Old 03-07-2018, 10:27 PM
dmthomp32

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Quote:
Originally Posted by Singleshot22 View Post
I installed a Redfield peep sight on my "56" not too long ago, and had the same concerns about the screw length for a slightly different reason. No reason to disassemble the gun to see how much space is available. I just used a "mag light" and looked in the mounting holes with the bolt retracted (lever down). Easy to see the side of the bolt. Then used the end of a paper clip inserted into the holes until they hit the side of the bolt. That pretty much tells you how much space you have for screw length. Worked for me anyway.
Good advice. I'll definitely try that as a technique.

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