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Rifle assembly
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<blockquote data-quote="Fiftydriver" data-source="post: 148483" data-attributes="member: 10"><p>Buzzgun,</p><p></p><p>YOu may have hit the button right on the head, just not practical to work with.</p><p></p><p>Plus I am not sure that over long term use the press fit system would hold headspace adjustment like a threaded receiver would.</p><p></p><p>I believe the fabulous Rem 710 rifle has a press fitted receiver. Have you heard all the rave review of this receiver, me neither!! /ubbthreads/images/graemlins/grin.gif</p><p></p><p>Yes there has to be some clearance for a thread system to fit properly without gauling but you can get it extremely close, so close in fact that it limits any directional shifting to really speak of. Using specially designed internal and external matching thread cutters you can get a thread fit that has no preceptible slack of any kind.</p><p></p><p>I like my barrels to be tight enough that I have to use a quality anti gaul compound and have to wear a glove to thread the receiver onto the barrel. In most cases I can not thread it on bare handed because the thread fit is so close.</p><p></p><p>You have to be careful doing this with some receivers. I have found that with Nesika Bay receivers, they do not like being this tight and have a very high potential for thread gauling even with a quality lube so they can not be fitted quite so tight but there should still be no preceptable loosness between the receiver and barrel when the receiver is threaded onto the barrel but not contacting the barrel shoulder. This is when you know the thread fit it correct.</p><p></p><p>In my opinion, with all the development and testing that has been done in the firearm industry, if a press fitted barrel was a better system for accuracy and consistancy it would have been done and would be being used today.</p><p></p><p>The boys in the BR world care very little about cost of their rifles, at least the real serious ones. Only thing that matters is getting that group smaller.</p><p></p><p>Practicality may be a huge issue and I am sure it is. I just do not see how a press fitted barrel would have any advantage over a precision threaded barrel.</p><p></p><p>Headspace adjustment for one would be a real pain in the rear.</p><p></p><p>Only way to prove a theory is with actual real world testing which is often spendy. Even if the result was better, would it be that much better to warrent the added trouble in working with such as system? Personally I do not think so but that is just my opinion.</p><p></p><p>A better system may be to use a barrel and locking bolt that actually locks into the actual barrel. This way there receiver to barrel interface would really not be a stressed system, just between the bolt head and barrel which would be one system. There are some receivers out there using this type of system already. You see it most common in some rotating bolt shotguns. IT works but it is very labor intensive to build. With todays CNC machines, it would be easy to do but still, is it better then what we are using now????</p><p></p><p>Kirby Allen(50)</p></blockquote><p></p>
[QUOTE="Fiftydriver, post: 148483, member: 10"] Buzzgun, YOu may have hit the button right on the head, just not practical to work with. Plus I am not sure that over long term use the press fit system would hold headspace adjustment like a threaded receiver would. I believe the fabulous Rem 710 rifle has a press fitted receiver. Have you heard all the rave review of this receiver, me neither!! [img]/ubbthreads/images/graemlins/grin.gif[/img] Yes there has to be some clearance for a thread system to fit properly without gauling but you can get it extremely close, so close in fact that it limits any directional shifting to really speak of. Using specially designed internal and external matching thread cutters you can get a thread fit that has no preceptible slack of any kind. I like my barrels to be tight enough that I have to use a quality anti gaul compound and have to wear a glove to thread the receiver onto the barrel. In most cases I can not thread it on bare handed because the thread fit is so close. You have to be careful doing this with some receivers. I have found that with Nesika Bay receivers, they do not like being this tight and have a very high potential for thread gauling even with a quality lube so they can not be fitted quite so tight but there should still be no preceptable loosness between the receiver and barrel when the receiver is threaded onto the barrel but not contacting the barrel shoulder. This is when you know the thread fit it correct. In my opinion, with all the development and testing that has been done in the firearm industry, if a press fitted barrel was a better system for accuracy and consistancy it would have been done and would be being used today. The boys in the BR world care very little about cost of their rifles, at least the real serious ones. Only thing that matters is getting that group smaller. Practicality may be a huge issue and I am sure it is. I just do not see how a press fitted barrel would have any advantage over a precision threaded barrel. Headspace adjustment for one would be a real pain in the rear. Only way to prove a theory is with actual real world testing which is often spendy. Even if the result was better, would it be that much better to warrent the added trouble in working with such as system? Personally I do not think so but that is just my opinion. A better system may be to use a barrel and locking bolt that actually locks into the actual barrel. This way there receiver to barrel interface would really not be a stressed system, just between the bolt head and barrel which would be one system. There are some receivers out there using this type of system already. You see it most common in some rotating bolt shotguns. IT works but it is very labor intensive to build. With todays CNC machines, it would be easy to do but still, is it better then what we are using now???? Kirby Allen(50) [/QUOTE]
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