Go Back   Georgia Outdoor News Forum > Firearms > Gunsmithing Discussion and Tips


Reply
 
Thread Tools Display Modes
  #1  
Old 12-13-2017, 10:30 AM
GADawg08's Avatar
GADawg08 GADawg08 is offline
Join Date: Oct 2010
Location: Southeast georgia
iTrader: (0) Check/Add Feedback
Default took iron sights off model 7....

I'm not a fan of iron sights on a bolt action....I purchased a used model 7 that had them on it. I bought some of the little replacement screws (price is ridiculous on those little suckers) to give the gun a "cleaner" look but I'm having a little trouble getting them to screw down all the way. I know the threads aren't cross threaded. Not sure if theres some pieces of thread lock or something down in the holes from the iron sights. Whats the best way to go about cleaning the holes/threads out ? Thanks for any help fellas
Reply With Quote
  #2  
Old 12-13-2017, 11:22 AM
jmoser's Avatar
jmoser jmoser is offline
Join Date: Mar 2010
Location: MI
iTrader: (2) Check/Add Feedback
Default

My guess is the female threads aren't cut all the way to the bottom of the hole and your screw tip is bottoming out. These are almost always 6-48 threads; I use a bottoming tap to chase threads. Check the length of the set screws; maybe you can grind off the ends if they have a point or nub that extends beyond the threads.

I have done this many times and never run into your problem - are you 100% sure you got the right screw threads? Compare to the mounting screws you removed.
__________________
Jeff
Reply With Quote
  #3  
Old 12-13-2017, 11:30 AM
GADawg08's Avatar
GADawg08 GADawg08 is offline
Join Date: Oct 2010
Location: Southeast georgia
iTrader: (0) Check/Add Feedback
Default

Quote:
Originally Posted by jmoser View Post
My guess is the female threads aren't cut all the way to the bottom of the hole and your screw tip is bottoming out. These are almost always 6-48 threads; I use a bottoming tap to chase threads. Check the length of the set screws; maybe you can grind off the ends if they have a point or nub that extends beyond the threads.

I have done this many times and never run into your problem - are you 100% sure you got the right screw threads? Compare to the mounting screws you removed.

yeah they are the correct threads....Ordered them from Midway USA. I got one of them to screw all the way down but having a little trouble with the other three.
Reply With Quote
  #4  
Old 12-13-2017, 01:52 PM
GADawg08's Avatar
GADawg08 GADawg08 is offline
Join Date: Oct 2010
Location: Southeast georgia
iTrader: (0) Check/Add Feedback
Default

just went home on my lunch break...cleaned out the screw holes and still, the only one I could get flush was the rear screw closest to the action. Is it possible the screw holes progressively get shallower the more you move to the end of the barrel?
Reply With Quote
  #5  
Old 12-13-2017, 06:35 PM
Jester896's Avatar
Jester896 Jester896 is offline
Join Date: Jul 2009
Location: SW Georgia
iTrader: (0) Check/Add Feedback
Default

Quote:
Originally Posted by GADawg08 View Post
Is it possible the screw holes progressively get shallower the more you move to the end of the barrel?
I think so. I removed some sights from an ADL and ground the tips down as described above. Hope you got the big pack...they can get slippery on a Dremel
Reply With Quote
  #6  
Old 12-14-2017, 07:52 AM
killerv's Avatar
killerv killerv is offline
Join Date: Dec 2007
Location: Macon Ga
iTrader: (0) Check/Add Feedback
Default

Just a heads up, our local Ace hardwares started carrying an assortment of gun screws/plugs. I was able to buy my filler plugs for a 700. Maybe all Ace hardwares started doing this. I had zero issues with the plugs I bought for the 700.
Reply With Quote
  #7  
Old 12-14-2017, 12:07 PM
jmoser's Avatar
jmoser jmoser is offline
Join Date: Mar 2010
Location: MI
iTrader: (2) Check/Add Feedback
Default

Quote:
Originally Posted by GADawg08 View Post
Is it possible the screw holes progressively get shallower the more you move to the end of the barrel?
Yes - if the shape of the tap nose is tapered. It starts cutting the threads shallow and they don't get to full thread depth until several threads are cut.

Blind holes should be cut with a bottoming tap which is designed to cut full threads all the way down but who knows if it was worn / broken / etc etc.

Grind or file the screw down or buy a bottoming tap and do it right. Just cosmetic so I would shorten the screw; glue it in with some Loctite.
Maybe you can file off the OD of the bottom 1 or 2 threads on the screw? PITA on a tiny short set screw but go slow and see.
__________________
Jeff
Reply With Quote
  #8  
Old 12-20-2017, 08:26 AM
WGSNewnan's Avatar
WGSNewnan WGSNewnan is offline
Join Date: Dec 2009
Location: Lost
iTrader: (0) Check/Add Feedback
Default

easy enough to figure out. grab some calipers and measure the depth of your hole. custom file the screw to length. not that big of a deal. chasing your threads with a bottoming tap is also a good idea.
Reply With Quote
  #9  
Old 12-21-2017, 10:18 AM
weagle's Avatar
weagle weagle is offline
Join Date: Dec 2004
Location: Sandy Springs Georgia
iTrader: (21) Check/Add Feedback
Default

Good time to buy or make a Screw Gizzie.

https://www.brownells.com/gunsmith-t...--prod599.aspx

I almost always have to grind a few threads off of filler screws to get them fit flush.
Reply With Quote
  #10  
Old 12-21-2017, 01:54 PM
jmoser's Avatar
jmoser jmoser is offline
Join Date: Mar 2010
Location: MI
iTrader: (2) Check/Add Feedback
Default

Quote:
Originally Posted by weagle View Post
Good time to buy or make a Screw Gizzie.

https://www.brownells.com/gunsmith-t...--prod599.aspx

I almost always have to grind a few threads off of filler screws to get them fit flush.
Neat tool but ain't gonna do it on a 3/32" long headless #6 set screw. Need to drill and tap a piece of 1/8" flat stock and file it down while threaded in place.

Wish I knew about the Gizzie years ago - I use a cutoff Dremel wheel with decent results. If careful you can deburr the edge after cutting with the face of the wheel.
__________________
Jeff
Reply With Quote
  #11  
Old 02-24-2018, 11:46 PM
pavogrande's Avatar
pavogrande pavogrande is offline
Join Date: Nov 2015
Location: dacula formally san jose
iTrader: (0) Check/Add Feedback
Default

chuck the screw in a small tap wrench and grind it down on a bench grinder or dremel --
Reply With Quote
  #12  
Old 02-25-2018, 11:19 AM
Stroker's Avatar
Stroker Stroker is offline
Join Date: Jan 2006
Location: Macongo
iTrader: (0) Check/Add Feedback
Default

I started using black RTV years ago after trying to remove four of them from a 700, three stripped out and required a gunsmith to drill them out and retap them. Now I just fill the holes with the black RTV and let it dry then trim it flush with a razor blade. Removes easily with a seal pick or smaller drill then clean threads with correct size tap.
__________________
We are advised to NOT judge ALL Muslims by the actions of a few lunatics, but we are encouraged to judge ALL gun owners by the actions of a few lunatics. Funny how that works!
Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Forum Jump


All times are GMT -4. The time now is 11:59 PM.


Powered by vBulletin® Version 3.7.4
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Copyright 2004 Georgia Outdoor News, Inc.Ad Management by RedTyger