Author Topic: Need some advice on 629 scope mount  (Read 920 times)

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Offline deerandduck

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Need some advice on 629 scope mount
« on: August 24, 2009, 02:25:40 AM »
I need some advice on a problem.  I've got a S&W 629 (no dash) and am putting a red dot scope on it.  I bought the B-Square mount kit for the Pre-93 smith.  After taking off the original rear sight, you are supposed to mount the B-square mount nut into the recessed area.  However, the first time, I had to lightly tap it in, as directed in the instructions but it ended up sitting at an angle.  I thought it was a defective B-square part.  They were nice and sent me another "mount nut and nylon ball".  After starting to try this one, it appears to want to go in at an angle as well.  Therefore, I think it may be the revolver itself.  Any thoughts?  The recess area looks straight and all, but.....  Not sure if and how to mod the revolver area.
With the mount nut installed with this angle, the base mounts ok, but the nut will not engage properly and comes loose after about 6 shots.  Wondering if I should just accept the angled mount nut and mod the base (its aluminum) and possible get a longer screw.

thanks,
Deerandduck

Offline deerandduck

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Re: Need some advice on 629 scope mount
« Reply #1 on: August 27, 2009, 02:21:03 AM »
Update:  After looking at it some more, I took a Dremel tool and a thin cut-off disk to the 629.  There was some minor misshapes in the groove where the B-square mount nut goes.  Once I slowly took this off, it fit in correctly.  Will be testing/shooting it this weekend.
Just an FYI for anyone else who may be doing the same to their Smith.
Deerandduck

Offline mwilson

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Re: Need some advice on 629 scope mount
« Reply #2 on: September 27, 2009, 02:05:19 PM »
so did you get out and shoot it yet? shot mine today. these 629s sure will shoot. 50 yards 6 shots

Offline deerandduck

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Re: Need some advice on 629 scope mount
« Reply #3 on: September 28, 2009, 03:46:09 AM »
Well, yes.  After sighting it in again, I was getting descent groups at 25 yards, about 1 1/2".  Then when cleaning it at home, I noticed the rear of the base (by the rear sight area) was once again loose.  After some gnashing of teeth, I took it apart again.  The B-Square part will not hold in the rear sight grove anymore.  So I'm going with the original rear sights this season.  Maybe I'll get it drilled and tapped for next season, but don't have time now.
thanks,
Deerandduck