Bullseye-L Forum
Would you like to react to this message? Create an account in a few clicks or log in to continue.

Rear sight dovetail specs for Sig Hammerli Trailside?

+3
Wobbley
7tcu
HogCommander
7 posters

Go down

Rear sight dovetail specs for Sig Hammerli Trailside? Empty Rear sight dovetail specs for Sig Hammerli Trailside?

Post by HogCommander Sun 3 Dec - 13:28

I've got a short barrel Trailside that came with fixed sights.  The rear sight was plastic and disappeared long ago after working itself loose.  Does anyone happen to know the specs for the Trailside's rear sight dovetail? 

I couldn't find the replacement part at Larry's Guns but I have a mill and am contemplating fabricating a new rear sight from steel. 

Any help/wisdom appreciated.

HogCommander

Posts : 41
Join date : 2016-06-08

Back to top Go down

Rear sight dovetail specs for Sig Hammerli Trailside? Empty Re: Rear sight dovetail specs for Sig Hammerli Trailside?

Post by 7tcu Sun 3 Dec - 22:31

I do not know how to size a dovetail grove other than measure it with a 6" scale. With a scale and my tired old eyes the bottom of the grove is 1/4" and the top is 7/32" and the depth is 1/16". My trailside has an adjustable rear site. If you need it measured differently just ask and I will see what I can come up with.
7tcu
7tcu

Posts : 111
Join date : 2017-04-26
Age : 75
Location : Gulf Coast of Texas

Back to top Go down

Rear sight dovetail specs for Sig Hammerli Trailside? Empty Re: Rear sight dovetail specs for Sig Hammerli Trailside?

Post by Wobbley Mon 4 Dec - 6:38

Here’s the scoop on measuring a dovetail.Rear sight dovetail specs for Sig Hammerli Trailside? 5c778910
Wobbley
Wobbley
Admin

Posts : 4480
Join date : 2015-02-12

Back to top Go down

Rear sight dovetail specs for Sig Hammerli Trailside? Empty Re: Rear sight dovetail specs for Sig Hammerli Trailside?

Post by Bullseye_Stan Mon 4 Dec - 6:49

So, one would need to get a pair of pin gauges (from McMaster-Carr, etc) and measure between the pins with that formula?  While I don't have an immediate project, this is something I expect to do eventually with my small X3 mill.

Bullseye_Stan

Posts : 274
Join date : 2017-06-11
Location : Hampton Roads, VA

Back to top Go down

Rear sight dovetail specs for Sig Hammerli Trailside? Empty Re: Rear sight dovetail specs for Sig Hammerli Trailside?

Post by STEVE SAMELAK Mon 4 Dec - 7:12

Brownels has a gage for measuring dovetails for abt 75.00.
A bit expensive for using one time or cheap if you value your time & want to do the job right the first time.
STEVE SAMELAK
STEVE SAMELAK

Posts : 934
Join date : 2011-06-10

Back to top Go down

Rear sight dovetail specs for Sig Hammerli Trailside? Empty Re: Rear sight dovetail specs for Sig Hammerli Trailside?

Post by james r chapman Mon 4 Dec - 9:25

Or, as shown, calculate the pin sizes needed, then several pins equal and smaller than the "s" dimension. Make your center cut slightly shallow, then mill your dovetail on centerline.
Hopefully you'll need to offset the tool and remill till your "go" pin fits.

If I'm wrong, I welcome a gunsmith opinion.


Last edited by james r chapman on Mon 4 Dec - 9:27; edited 1 time in total (Reason for editing : littler not bigger)
james r chapman
james r chapman
Admin

Posts : 6059
Join date : 2012-01-31
Age : 75
Location : HELL, Michigan

Back to top Go down

Rear sight dovetail specs for Sig Hammerli Trailside? Empty Re: Rear sight dovetail specs for Sig Hammerli Trailside?

Post by Dr.Don Mon 4 Dec - 10:07

The issue on many of these sights isn't the width but the angle.  Some use 60 degrees and some use 65 degrees.  Unless you know what the angle is of the sight you are going to use, you can get a very bad fit even with the correct width.
Dr.Don
Dr.Don

Posts : 806
Join date : 2012-10-31
Location : Cedar Park, TX

Back to top Go down

Rear sight dovetail specs for Sig Hammerli Trailside? Empty Re: Rear sight dovetail specs for Sig Hammerli Trailside?

Post by 7tcu Mon 4 Dec - 12:09

Go to Numeric Gun Parts and enter 945580 if you want a replacement rear site. and part number 851940 for the adjustable site
7tcu
7tcu

Posts : 111
Join date : 2017-04-26
Age : 75
Location : Gulf Coast of Texas

Back to top Go down

Rear sight dovetail specs for Sig Hammerli Trailside? Empty Re: Rear sight dovetail specs for Sig Hammerli Trailside?

Post by HogCommander Mon 4 Dec - 21:50

Very much appreciate the replies.  After thinking about this, I decided to fabricate my own rear sight and open the rear sight dovetail to dimensions I can control. 

Already had a 65 degree dovetail cutter that makes a .330 wide dovetail so I figured I would make the rear sight fit the cut I'm already equipped to produce. 

As you can see in the photo, still have a good bit of work to do tapering the vertical edges, putting a radius on front corners, clean up surfaces, etc but I'm a lot closer than I was yesterday. 

https://imgur.com/Sgk24uQ

HogCommander

Posts : 41
Join date : 2016-06-08

Back to top Go down

Rear sight dovetail specs for Sig Hammerli Trailside? Empty Re: Rear sight dovetail specs for Sig Hammerli Trailside?

Post by Sponsored content


Sponsored content


Back to top Go down

Back to top

- Similar topics

 
Permissions in this forum:
You cannot reply to topics in this forum