Does anyone have first hand experience on the affect a looseish barrel pivot bolt has on accuracy? By loose I mean 1/8 inch turn to snug it back up so once cocked the broken barrel doesn’t freely drop.
Gary
Gary
Looseish barrel pivot bolt
- Thread starter Windmill01
- Start date
What gun are you referring to? Can you show us some photos ? Is there a bushing that the bolt pivots on that needs to be replaced?
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Common sense would suggest that IF the barrel block (and thus barrel) can tilt side to side in the receiver then accuracy could suffer, especially for a scope or if rear sight was on the receiver. Improved bushings have helped many of my break barrels as has increasing lockup through spring and detent work. Probably hard to quantify effect of looseness in terms of turns of the bolt.
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Survivor45 the rifle is a Hw30 and is new.
bandg I wouldn’t say that the barrel block was tilting side to side, that’s a bit extreme however once I snugged up the bolt as I indicated in my post above the barrel would not drop freely once cocked with the barrel broken again. I had read that this is ideal.
Yarddog what type of accuracy issues did you experience. Yesterday arvo I was getting stringing and replaced the scope mounts and re zeroed and all was good. It wasn’t until I was inspecting screws etc on the rifle after shooting that I noticed the looseness. I tightened the bolt and put the rifle back in the safe. I’ll shoot it this morning to see if there are any changes.
Gary
bandg I wouldn’t say that the barrel block was tilting side to side, that’s a bit extreme however once I snugged up the bolt as I indicated in my post above the barrel would not drop freely once cocked with the barrel broken again. I had read that this is ideal.
Yarddog what type of accuracy issues did you experience. Yesterday arvo I was getting stringing and replaced the scope mounts and re zeroed and all was good. It wasn’t until I was inspecting screws etc on the rifle after shooting that I noticed the looseness. I tightened the bolt and put the rifle back in the safe. I’ll shoot it this morning to see if there are any changes.
Gary
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Thanks Yarddog, I just fired off a few shots then to see what impact the tightened pivot bolt may or may not have. First two shots landed top left bull, poa was centre bull. I then zeroed the rifle on the centre bull. After re zeroing the next ten shots were at bottom right bull. All at 25 metres.
Just another thing to remember now when accuracy falls off. Good thing is that I’m always learning.
Thanks again
Gary
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if you have a in lb torque wrench, or access to one, find what the manufacturer recommends and torque to that and record it so as not forget and check after a thousand rounds or so.
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