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View Full Version : Out of true scope mount holes vs barrel?



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hal9000
01-20-2024, 06:11 PM
Just some light viewing. :)

https://www.youtube.com/watch?v=xiTQHGEGkn0

https://www.youtube.com/watch?v=HoP-X9FknNk

https://www.youtube.com/watch?v=22l-PWxqB4E

Thanks for those. Pretty basic in principle and easy enough to check for Being out of tolerance at least. I sold my lathe a few years ago but still have access to one of truing is necessary.

Robinhood
01-20-2024, 10:06 PM
And the barrel could be less than straight.

sharpshooter
01-20-2024, 11:08 PM
A lot of the older actions were distorted from heat treat, typically banana shaped. Ideally, the biggest percentage were machined within tolerance, but with a heavy hand at the belt sander, the rear flat and the od were affected to the point of being out of whack.

Robinhood
01-20-2024, 11:41 PM
A lot of the older actions were distorted from heat treat, typically banana shaped. Ideally, the biggest percentage were machined within tolerance, but with a heavy hand at the belt sander, the rear flat and the od were affected to the point of being out of whack.

...and we have seen more than a few that someone stuck a tool through the ejection and mag ports to support the action while banging on a barrel nut wrench. Then selling the twisted action/rifle to recoup their investment.

Tlf65
01-29-2024, 09:41 PM
I have a new Savage 110 that shoots further to the right than my scope has windage adjustment. The rifle it a tactical model ln 6mm creedmore that came with a 20moa rail so I don't know if the problem is the rifle or the rail. I have been able to correct the problem by using Burris rings. My efforts to troubleshoot the problem was frustrated by my inability to find bases using 8-40 screws everything I've found has 6-48screws.

Dave Hoback
01-29-2024, 09:49 PM
I have a new Savage 110 that shoots further to the right than my scope has windage adjustment. The rifle it a tactical model ln 6mm creedmore that came with a 20moa rail so I don't know if the problem is the rail or the rifle. I have been able to correct the problem by using Burris rings. My efforts to troubleshoot the problem was frustrated by my inability to find bases using 8-40 screws everything I've found has 6-48screws.

There’s definitely a problem! No way should it outpace any scope for windage. Do you need 2-piece bases? I’d recommend going with a 1-piece Picatinny rail & rings. Easy to find & fits the look of the rifle better. I use Talley rails in 20moa.