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Posted: 9/28/2014 10:07:59 AM EDT
[#1]
How the barrel fits can affect accuracy.
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Posted: 9/28/2014 10:20:14 AM EDT
[#2]
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How the barrel fits can affect accuracy. 99% of it is barrel quality and bolt fit. |
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Posted: 9/28/2014 10:25:40 AM EDT
[#3]
With respect to the upper receiver, the only thing I have heard some people swear by is lapping its front face in order to square it up so that the barrel seats squarely/aligns "properly".
I've also heard others say that lapping the upper doesn't make any difference unless you turn the shoulder of the barrel extension to square it as well. |
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Posted: 9/28/2014 5:01:30 PM EDT
[#4]
Would the type of receiver (slick side vs. A3) have any effect on the scopes interface with the rifle, in the regard to slight flexing of the receiver?
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Posted: 9/28/2014 11:51:50 PM EDT
[#5]
Quote HistoryQuoted:
Would the type of receiver (slick side vs. A3) have any effect on the scopes interface with the rifle, in the regard to slight flexing of the receiver? Not a measurable one. |
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Posted: 9/29/2014 2:25:01 AM EDT
[#6]
The cartridge is in the chamber when you pull the trigger, the upper receiver doesn't matter at this point.
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Posted: 9/29/2014 10:33:05 AM EDT
[#7]
Quote HistoryQuoted:
The cartridge is in the chamber when you pull the trigger, the upper receiver doesn't matter at this point. I can imagine you want to the bolt to be perfectly square against the chamber though so there are not uneven pressures on the round in the chamber. If the upper receiver were off, I could see where it could case this sort of uneven-ness. That's my best guess. Perhaps someone with some more experience can chime in. |
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Posted: 9/29/2014 12:26:30 PM EDT
[#8]
Quote HistoryQuoted:
I can imagine you want to the bolt to be perfectly square against the chamber though so there are not uneven pressures on the round in the chamber. If the upper receiver were off, I could see where it could case this sort of uneven-ness. That's my best guess. Perhaps someone with some more experience can chime in. Quote HistoryQuoted:
Quoted:
The cartridge is in the chamber when you pull the trigger, the upper receiver doesn't matter at this point. I can imagine you want to the bolt to be perfectly square against the chamber though so there are not uneven pressures on the round in the chamber. If the upper receiver were off, I could see where it could case this sort of uneven-ness. That's my best guess. Perhaps someone with some more experience can chime in. The key to accuracy isn't in perfection of parts, it's in consistency of action. If the BCG is tilted a degree up in relation to the barrel it's going to exert the same forces every time on every loading. If they are all the same then down range at the target you'll get the same. It's things that have variable that screw accuracy, barrel whip, you pulling the trigger, putting different pressures on the barrel through the rest, Sigh picture. It's why heavy barrels, a good trigger, free floating, and a good stock are keys to good accuracy. (I know I'm missing more I just want to get a point across) |
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Posted: 9/29/2014 12:30:21 PM EDT
[#9]
Quote HistoryQuoted:
I can imagine you want to the bolt to be perfectly square against the chamber though so there are not uneven pressures on the round in the chamber. If the upper receiver were off, I could see where it could case this sort of uneven-ness. That's my best guess. Perhaps someone with some more experience can chime in. Quote HistoryQuoted:
Quoted:
The cartridge is in the chamber when you pull the trigger, the upper receiver doesn't matter at this point. I can imagine you want to the bolt to be perfectly square against the chamber though so there are not uneven pressures on the round in the chamber. If the upper receiver were off, I could see where it could case this sort of uneven-ness. That's my best guess. Perhaps someone with some more experience can chime in. The upper receiver is not exerting force on the bolt during lockup. The receiver would have to be really bent to do that..... |
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Posted: 9/30/2014 8:43:48 AM EDT
[#10]
Quote HistoryQuoted:
99% of it is barrel quality and bolt fit. Quote HistoryQuoted:
Quoted:
How the barrel fits can affect accuracy. 99% of it is barrel quality and bolt fit. Once the barrel is fit snug with the receiver. https://www.youtube.com/watch?v=pJL-IscH_jo |
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Posted: 10/1/2014 1:46:15 AM EDT
[#11]
Quote HistoryQuote HistoryQuoted:
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How the barrel fits can affect accuracy. 99% of it is barrel quality and bolt fit. Once the barrel is fit snug with the receiver. https://www.youtube.com/watch?v=pJL-IscH_jo That is a good video, but it also made me almost puke. I have an upper barely fired, with both highly respected brand named barrel and upper where the barrel just flopped in like a hotdog in a hallway 
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Posted: 10/25/2014 7:58:25 AM EDT
[#12]
Quote HistoryQuote HistoryQuoted:
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How the barrel fits can affect accuracy. 99% of it is barrel quality and bolt fit. Once the barrel is fit snug with the receiver. https://www.youtube.com/watch?v=pJL-IscH_jo Thanks for the video. Very interesting points he brings up. Watched them just in time considering I'm putting together a LR-308. |
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Posted: 10/25/2014 8:33:04 AM EDT
[#13]
Quote HistoryQuoted: That is a good video, but it also made me almost puke. I have an upper barely fired, with both highly respected brand named barrel and upper where the barrel just flopped in like a hotdog in a hallway Quote HistoryQuoted: That is a good video, but it also made me almost puke. I have an upper barely fired, with both highly respected brand named barrel and upper where the barrel just flopped in like a hotdog in a hallway Looks like that video was shot at Camp Perry. Thanks for sharing.
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Posted: 10/25/2014 11:36:36 AM EDT
[#14]
How does he index the new extension with an old barrel ?
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