Forums
New posts
Search forums
What's new
Articles
Latest reviews
Author list
Classifieds
Log in
Register
What's new
Search
Search
Search titles and first posts only
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Forums
Rifles, Reloading, Optics, Equipment
Gunsmithing
?To nut or not to nut?
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="J E Custom" data-source="post: 424180" data-attributes="member: 2736"><p>Obviously this will never get resolved because there is nothing wrong with ether type</p><p>of thread connection of the barrel to the action "SO" to help answer your original question</p><p>let me explain why I "Prefer to use the shoulder method"</p><p></p><p>Thread barring surface has not been agreed upon so we will fore go that and simply look at</p><p>the total bearing surface error= with a shoulder type joint you have ''2'' parts to assemble</p><p>and any slack/thread fit is plus 2.</p><p></p><p>With the Nut there is a third piece with the same error if the threads are cut the same.</p><p>"SO" now you have added 33.3% error to the make up.</p><p></p><p>So by eliminating the nut you have improved the chances of a better fit/ True by1/3.</p><p></p><p>Next as to the cantilever effect think about a 1.250 shank supported by a 1.250 shoulder</p><p>as compared to a 1.062 shank supported by a nut that only adds .078 to the shank because </p><p>the cross section between the root of the threads and the groves in the nut for removal</p><p>measures .076 on the one I am using to get this thickness readings. so when added to the </p><p>shank of the 1.062 shank the effective shank diameter is 1.138 and only for 1/2" .</p><p></p><p>This means that when I do a shoulder type connection i have a shank diameter of 1.250</p><p>(Standard blank diameter) that is 2.500 long from the shoulder as opposed to 1.138 for</p><p>one half inch with the nut type connection. PS; The front of the nut that is tapered down </p><p>for looks does not touch the barrel and offers no support.</p><p></p><p>So you be the judge. "TO NUT OR NOT TO NUT" That was the question.</p><p></p><p>This is the reason I elect to use the shoulder and loose the nut.</p><p></p><p>J E CUSTOM</p></blockquote><p></p>
[QUOTE="J E Custom, post: 424180, member: 2736"] Obviously this will never get resolved because there is nothing wrong with ether type of thread connection of the barrel to the action "SO" to help answer your original question let me explain why I "Prefer to use the shoulder method" Thread barring surface has not been agreed upon so we will fore go that and simply look at the total bearing surface error= with a shoulder type joint you have ''2'' parts to assemble and any slack/thread fit is plus 2. With the Nut there is a third piece with the same error if the threads are cut the same. "SO" now you have added 33.3% error to the make up. So by eliminating the nut you have improved the chances of a better fit/ True by1/3. Next as to the cantilever effect think about a 1.250 shank supported by a 1.250 shoulder as compared to a 1.062 shank supported by a nut that only adds .078 to the shank because the cross section between the root of the threads and the groves in the nut for removal measures .076 on the one I am using to get this thickness readings. so when added to the shank of the 1.062 shank the effective shank diameter is 1.138 and only for 1/2" . This means that when I do a shoulder type connection i have a shank diameter of 1.250 (Standard blank diameter) that is 2.500 long from the shoulder as opposed to 1.138 for one half inch with the nut type connection. PS; The front of the nut that is tapered down for looks does not touch the barrel and offers no support. So you be the judge. "TO NUT OR NOT TO NUT" That was the question. This is the reason I elect to use the shoulder and loose the nut. J E CUSTOM [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Gunsmithing
?To nut or not to nut?
Top