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Opinions on lapping upper receiver
- Thread starter fairchase
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Re: Opinions on lapping upper receiver
What are we talking about lapping, bolt lugs to barrel extension?
Kirk R
What are we talking about lapping, bolt lugs to barrel extension?
Kirk R
Re: Opinions on lapping upper receiver
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Captain Kirk</div><div class="ubbcode-body">What are we talking about lapping, bolt lugs to barrel extension?
Kirk R</div></div>
The front of the upper ; where it mates up with the barrel extension.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Captain Kirk</div><div class="ubbcode-body">What are we talking about lapping, bolt lugs to barrel extension?
Kirk R</div></div>
The front of the upper ; where it mates up with the barrel extension.
Re: Opinions on lapping upper receiver
Truing receiver face? Can't hurt if done right, and "lapping" in the usual sense of the word is (in my opinion) not the best way to do it.
Truing receiver face? Can't hurt if done right, and "lapping" in the usual sense of the word is (in my opinion) not the best way to do it.
Re: Opinions on lapping upper receiver
Needs to be checked, and trued if needed. Most uppers can use a little touch.
Nothing magic, it won't change a 1 1/2 MOA gun into a 1/2 MOA, but everything goes into the whole, and doesn't hurt.
I also have several 1/2MOA guns that have never been trued.
Needs to be checked, and trued if needed. Most uppers can use a little touch.
Nothing magic, it won't change a 1 1/2 MOA gun into a 1/2 MOA, but everything goes into the whole, and doesn't hurt.
I also have several 1/2MOA guns that have never been trued.
Re: Opinions on lapping upper receiver
Well I called WOA today since I'm using one of their 18" spr barrels. They said unless you had an upper that was just awful they don't see any need in squaring the front of the receiver. They wanted to torq the barrel nut between 70 - 90 ft/lbs. They said this would alleviate any such problem. Also wanted to apply red loctite to the barrel extension.
Well I called WOA today since I'm using one of their 18" spr barrels. They said unless you had an upper that was just awful they don't see any need in squaring the front of the receiver. They wanted to torq the barrel nut between 70 - 90 ft/lbs. They said this would alleviate any such problem. Also wanted to apply red loctite to the barrel extension.
Re: Opinions on lapping upper receiver
If windage is correct--such that canting isn't an issue--I assume truing is the correct solution if elevation can't be corrected to zero the irons. That's what I'm currently dealing with...but if it's within spec, I see no need to true. Does it also help noticeably with accuracy?
If windage is correct--such that canting isn't an issue--I assume truing is the correct solution if elevation can't be corrected to zero the irons. That's what I'm currently dealing with...but if it's within spec, I see no need to true. Does it also help noticeably with accuracy?
Re: Opinions on lapping upper receiver
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: carbinero</div><div class="ubbcode-body">If windage is correct--such that canting isn't an issue--I assume truing is the correct solution if elevation can't be corrected to zero the irons. That's what I'm currently dealing with...but if it's within spec, I see no need to true. Does it also help noticeably with accuracy?</div></div>
WOA 's opinion was that loctite was more benifical to improving accuracy than squaring the front of the receiver.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: carbinero</div><div class="ubbcode-body">If windage is correct--such that canting isn't an issue--I assume truing is the correct solution if elevation can't be corrected to zero the irons. That's what I'm currently dealing with...but if it's within spec, I see no need to true. Does it also help noticeably with accuracy?</div></div>
WOA 's opinion was that loctite was more benifical to improving accuracy than squaring the front of the receiver.
Re: Opinions on lapping upper receiver
If you have an elevation issue and the barrel extension isn't seating all the way the recess for the barrel extension in the upper receiver should be the first suspect...
If you have an elevation issue and the barrel extension isn't seating all the way the recess for the barrel extension in the upper receiver should be the first suspect...
Re: Opinions on lapping upper receiver
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: son</div><div class="ubbcode-body">Well I called WOA today since I'm using one of their 18" spr barrels. They said unless you had an upper that was just awful they don't see any need in squaring the front of the receiver. They wanted to torq the barrel nut between 70 - 90 ft/lbs. They said this would alleviate any such problem. Also wanted to apply red loctite to the barrel extension. </div></div>
Lot's of opinions, but WOA builds the uppers that national champions use. I'd go with their opinion.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: son</div><div class="ubbcode-body">Well I called WOA today since I'm using one of their 18" spr barrels. They said unless you had an upper that was just awful they don't see any need in squaring the front of the receiver. They wanted to torq the barrel nut between 70 - 90 ft/lbs. They said this would alleviate any such problem. Also wanted to apply red loctite to the barrel extension. </div></div>
Lot's of opinions, but WOA builds the uppers that national champions use. I'd go with their opinion.
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