Good Rebarrel Candidate?

baldhunter

Well-Known Member
Joined
Jun 18, 2008
Messages
671
Location
Texas
After checking out this rifle with my Teslong bore scope I found the last two inches had deep annular tool marks through the lands and grooves.I did get it to shoot well after I fire lapped it,but I may just get it rebarreled,what do y'all think?
CZ UHR1.jpg
CZ UHR2.jpg
CZ UHR 3.jpg
 

Frog4aday

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Joined
Oct 25, 2007
Messages
1,015
Location
Texas Hill Country
I'm a results oriented guy. If you got it to finally shoot well after fire-lapping, then I'd just keep it and shoot it until it quits grouping for you. Still, it's amazing what you find when you look at a bore up close. Even more surprising when things look 'ugly' but still shoot okay.
 

baldhunter

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Joined
Jun 18, 2008
Messages
671
Location
Texas
It is the last two inches near the muzzle.It already has a 24" barrel so I really don't want it shorter.I think I'll send a note to CZ warranty to see what they say.I mean really a barrel with that many tool marks should never pass.This is on a CZ HA 550 HUNTER.If I keep my loads on the milder side I can get some groups down to 3/4" or so but if I try to push it They tend to open up.Longer bullets seem to do better too.
cz300wm.jpg
 
Last edited:

birdiemc

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Joined
Jan 1, 2011
Messages
824
Location
San Antonio, TX
If you aren't happy with it as is, my recommendation would be to cut it and recrown as previously recommended, shoot it and see if the accuracy improvement offsets your dislike of the length, if not sell it and start over. Folks on here might not be interested, but your local market might jump on the opportunity to get a rifle that is verified to shoot sub MOA. I sold a 7mm mag with 37 rounds through it once for $50 under what he could have bought it brand new, because a friend told a friend told a friend...
Of course I dont know how much it would cost to have it cutoff and recrown, so that factors in.
 

bill123

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Joined
Jun 14, 2013
Messages
599
What would cause tool marks across the lands and grooves at the muzzle end?
 

baldhunter

Well-Known Member
Joined
Jun 18, 2008
Messages
671
Location
Texas
What would cause tool marks across the lands and grooves at the muzzle end?
I would think it was done when the barrel was being bored.Dull tool or wobble,not really sure.Looks like two inches of speed bumps.
 

Bob Wright

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Joined
Jan 23, 2018
Messages
568
Location
Litchfield Park, Az.
Usually those marks in the barrel are related to chatter of the cutter, which is driven by cutter wear, rigidity of the setup, barrel material/hardness and other little issues. The lapping should clean much of it, if the process was set up to remove enough material to finish it. Pure skill and experience in the manufacturer. Sometimes, bad ones get through....
 

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