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How can/does a bolt shroud impact accuracy?

JBradley500

Private
Minuteman
Sep 2, 2019
6
0
I just got a 308 Bergara B14 Hunter and it grouped like crap. I called them to ask if they had any possible issues they know of. They asked about the age of my gun because they had a problem with cast bolt shroud threads basically stripping/backing out. Mine looks like it was backed a thread or two after one box of shells and the threads have flat spots on them. This also seems to have kept the cocking indicator from going back to totally line up the hole you use to insert an Allen wrench when removing the shroud.

They're going to send me the new style that fixes the problem. I didn't think much about it, but now I'm not sure how this impacts accuracy besides possible cocking/firing pin force. My primer strikes all look the same to my eye. Is there more that the bolt shroud does that can impact accuracy? Thank you.

IMG_20191216_111339.jpg
 
I just got a 308 Bergara B14 Hunter and it grouped like crap. I called them to ask if they had any possible issues they know of. They asked about the age of my gun because they had a problem with cast bolt shroud threads basically stripping/backing out. Mine looks like it was backed a thread or two after one box of shells and the threads have flat spots on them. This also seems to have kept the cocking indicator from going back to totally line up the hole you use to insert an Allen wrench when removing the shroud.

They're going to send me the new style that fixes the problem. I didn't think much about it, but now I'm not sure how this impacts accuracy besides possible cocking/firing pin force. My primer strikes all look the same to my eye. Is there more that the bolt shroud does that can impact accuracy? Thank you.

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Did you ever get this sorted out? If so, did replacing the bolt shroud help with accuracy? I'm having accuracy problems with my B-14 HMR in 308 and just noticed the same flattening on my bolt shroud threads.