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Concidering the 7.62 posts recently |
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Goosic
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Joined: September 12 2017 Location: Phoenix Arizona Status: Offline Points: 8842 |
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Posted: January 09 2023 at 1:32pm |
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Kind of where I was going with this. My particular setup/barrel bedding, incorporates the near identical bedding practices your rifles are shown to have but without all the bedding compound and as such can be used in the large bore competition since it is, "As Issued."
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britrifles
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Joined: February 03 2018 Location: Georgia, USA Status: Offline Points: 8404 |
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Posted: January 09 2023 at 1:59pm |
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Yes, you can shoot your Malby in the 200 yd CMP Vintage Military Rifle matches. I have two No. 4s that have standard forend bedding methods which I use for this.
My DCRA 7.62 can’t be used in the CMP match because of the non-standard calibre (7.62) and forend bedding compound. But it shoots good, so I use it for mid to long range shooting “in the spirit” of the 1960’s SR(b) match shooting.
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Shamu
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Posted: January 09 2023 at 4:20pm |
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I'm still concerned with the "shiny line" (indicated by the green arrows.) in your barrel channel. That is not "bedding", but it IS unwanted contact. I had the same issue with one of my mummy unwraps. After I got it to where it passed "the dollar bill test" groups shrank noticeably, particularly vertical stringing from a cold bore as it warmed. |
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Don't shoot till you see the whites of their thighs. (Unofficial motto of the Royal Air Force)
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britrifles
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Posted: January 09 2023 at 7:03pm |
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Most likely a bit of forend warping since it was machined 80 years ago.
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Goosic
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Posted: January 09 2023 at 8:16pm |
The gap between the barrel and the barrel channel from the reinforce to the muzzle on both sides is exactly 0.010" It is the straitest forend I have ever encountered. You can lay a straightedge on the flats and there are no gaps. Same goes for the hand guards. There is absolutely nothing wrong with this rifle britrifles, nothing...
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Shamu
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Posted: January 10 2023 at 2:20pm |
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Seriously, that shiny strip is barrel contact. It compresses the wood over time. Its
an easy fix, just wrap a suitable sized dowel with some medium fine
sandpaper & run it back & forth a few times. Then mount the
forend as you would normally & see if a thin shim (typing paper
strip, or a new dollar bill "catches" as you slide it back & forth. |
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Don't shoot till you see the whites of their thighs. (Unofficial motto of the Royal Air Force)
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Goosic
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Posted: January 10 2023 at 6:40pm |
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Shamu: I used 600 grit sandpaper and removed just enough material to barely let an Icelandic 1000 Kronur note slip between the the barrel and barrel channel. The note is thinner than a dollar. I temporarily installed a Singer MkI micrometer sight as well...
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Shamu
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Posted: January 11 2023 at 12:53pm |
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There you go! It doesn't have to be a LOT of clearance, but it does need to exist. Especially if you re oil the stock which will make it swell back to the original size.
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Don't shoot till you see the whites of their thighs. (Unofficial motto of the Royal Air Force)
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