+++++ above! LAP-IT! It pays!! As the uppers are made of aluminum a good valve grinding compound from your neighborhood auto parts store should work fine. Use it sparingly!
Accuracy fixed.
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Lapping tool ordered. Thanks for the post.
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Originally posted by biodsl View PostWhat media should be used?
I also make sure to orient the upper receiver vertically so I'm not biasing the weight of the lapping tool in the upper and therefore creating an angle on the receiver face.NRA Basic, Pistol, Rifle, Shotgun, RSO
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Originally posted by LRRPF52 View PostI just use lapping compound from Brownell's.
I also make sure to orient the upper receiver vertically so I'm not biasing the weight of the lapping tool in the upper and therefore creating an angle on the receiver face.
Good tip LRRPF52, I'm going to have to remember to put it in the vice that way next time.
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Originally posted by Bigs28 View PostInstead of starting a new thread, I will just add to this one. I went to the range again today with some hornady black ELD-M. I cant believe the difference that lapping the upper receiver and bedding the barrel has made to the accuracy. I was originally going to scrap the upper out of pure disappointment. Im glad this forum was here for me to learn off of and after a couple of easy fixes this gun is doing what I originally knew it would be capable of.
This is the target from before I lapped the upper and bedded the barrel and a target I shot today with the ELD-M after lapping and bedding the barrel. Thanks again for all the input. Couldnt have done it as easily without you guys.
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Last edited by Bigs28; 07-07-2017, 01:15 PM.
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Originally posted by Bigs28 View PostInstead of starting a new thread, I will just add to this one. I went to the range again today with some hornady black ELD-M. I cant believe the difference that lapping the upper receiver and bedding the barrel has made to the accuracy. I was originally going to scrap the upper out of pure disappointment. Im glad this forum was here for me to learn off of and after a couple of easy fixes this gun is doing what I originally knew it would be capable of.
This is the target from before I lapped the upper and bedded the barrel and a target I shot today with the ELD-M after lapping and bedding the barrel. Thanks again for all the input. Couldnt have done it as easily without you guys.
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Originally posted by just_john View PostWheeler is good unless it has been damaged on the rotating face in some manner.
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I bought the brownell tool, also brownell lapping compound and used my drill at a low speed to lap. May have screwed up as I lapped with the receiver horizontal not vertical as i did not want any lapping compound to run down the tool and lap the inside of the receiver but what do I know. The Odin works 20 incher shot wellQueen of Battle
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