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Posted: 9/1/2012 6:39:13 PM EDT
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Which upper receiver is the most square ready to go right out of the box?
Thanks! |
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I don't believe anyone has done the required research to warrant saying "brand X has the most square receivers on the market everytime"
Buy any stripped forged receiver and slap it on... truing the receiver isn't going to do anything for you unless you HAVE a problem with the setup (like it shooting waaaay to one side and you can't correct with windage) |
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Quoted:
Most square? All the uppers that I have purchased from various sources have been just fine. Bushmaster (old), DS Arms, Brownells.... How do you know? Did you check them/lap them? I'm talking about the squareness of the receiver face .... the part that the barrel flange tightens against. This is for a long range "precision" build. I know many people lap the receiver and I am not against that, just wondering if some here can comment on what receivers are commonly machined square and GTG out of the box. |
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Quoted:
I don't believe anyone has done the required research to warrant saying "brand X has the most square receivers on the market everytime" Buy any stripped forged receiver and slap it on... truing the receiver isn't going to do anything for you unless you HAVE a problem with the setup (like it shooting waaaay to one side and you can't correct with windage) No, that's not entirely true.... well, not the only reason. A trued receiver also helps with bolt life and with bolt lock-up, just like a bolt rifle. It is most desirable to have the lugs mating all the way around.... if your receiver is not square, that won't happen. AND, like I said, this is for a precision build, not just a run of the mill battle rifle. |
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The only reason you would swap out an upper is if you started with an A2 and wanted a flattop, or if you were switching to a side-cocker or something fancy like that.
Its difficult to say with any certainty on upper squareness, but if I had to guess, I'd say go with a proven company (larue, noveske, bcm) and probably a billet or machined type (not a forged). For a precision build where you were concerned about squareness, most guys will spend the $$ and have one cut square, as anything else could be a gamble. |
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