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Normal Topic Bolt wear (Read 1302 times)
Henry Straker
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Bolt wear
Jan 3rd, 2018 at 5:22am
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I am at the juncture of putting another barrel on a Sako 75 rifle. The rifle has had anywhere between 15,000 and 20,000 rounds through it and the bolt has developed some wear/polishing on the shank two thirds of the way back from the locking lugs / bolt face to the shroud. I'm struggling to load pictures to illustrate this. However, is this something that is of concern with respect to accuracy?

Also, can anyone point me to instructions on uploading images?

Many thanks,

Henry
  
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DazzH
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Re: Bolt wear
Reply #1 - Jan 3rd, 2018 at 9:38am
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I'll be interested to read any posts on this. I also have a 75 with some wear in the bolt/action. The rifle is still very accurate but I have managed to short stroke the bolt when trying to quickly chamber a round. I have thought of having the bolt nickel plated to build it back up, I would think that in doing so the bolt would also move more freely.
  
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Flintlock
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Re: Bolt wear
Reply #2 - Jan 3rd, 2018 at 10:23am
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Accuracy is to do with the faces of the locking lugs,barrel fitting ,chamber alignment etc nothing to do with the bolt body . If wear is a concern then measure the diameter and compare with a new rifle , polishing through use usually helps bolt movement .

Short stroking is to do with the shooter , often from putting side pressure  on the bolt rather than working it back and forth in a straight line
  

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Homer
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Re: Bolt wear
Reply #3 - Jan 3rd, 2018 at 10:46am
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G'Day Fella's,

Henry Stalker, is there gouges in the bolt body/shank or is it just polished?
If it's just polished, man I have more than one rifle that are just the same (but Rem 700-Two Luggers), and I don't consider this to be a problem.

Hope that helps

Doh!
Homer
  

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Henry Straker
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Re: Bolt wear
Reply #4 - Jan 4th, 2018 at 5:57am
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There is a very slight lip/edge along the bolt shank that has result of the wear. It doesnít effect the cycling of the bolt. Iím away from my calipers at the moment so I canít quantify it for you.
  
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sako
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Re: Bolt wear
Reply #5 - Jan 15th, 2018 at 7:04pm
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Why don't you polish your chamber races.
  
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ChrisHB
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Re: Bolt wear
Reply #6 - Jan 16th, 2018 at 5:54am
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You mean action rails???
  
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