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Double Rifles, Single Shots & Combinations >> Single Shots & Combination Guns

DarylS
.700 member

Reged: 10/08/05
Posts: 26994
Loc: Beautiful British Columbia, Ca...

Re: Accuracy advise for Ruger No1 in 45/70
03/01/13 06:23 AM

Tom is not just whistling Dixie about the 14 rib. This is probably why the Varmint rifles are generally more accurate - heavier barrels aside. Tests showed that the 1/4 rib would/could expand .007" in length. This of course makes it push on the action as well as arching which can cause other problems like double grouping or group shift with temperature.

Some guns exhibit all the accuracy problems, while others seem oblivious right from the box. Bedding the forend to the hanger, with no tension anywhere on the barrel is one method of bedding, while others say to bed solidly, and still others to install an 8x32 screw from the front of the hanger up to touch the barrel, giving even more adjustable pressure/tension at that point.

I relieved the touching at the rear of the rib on my #1 in .218Bee and was immediately rewarded with improved (excellent) accuracy with my Lil'Gun loads. Note - the rib screws usually seem to have been installed by a very large man with a large handled screwdriver.

Reducing the 1/4 rib to a 2 piece rib is one method of reducing elongation.

--------------------
Daryl

"a gun without hammers is like a Spaniel without ears" King George V

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Subject	Posted by	Posted on
Accuracy advise for Ruger No1 in 45/70	fourbore	02/01/13 01:34 PM
Re: Accuracy advise for Ruger No1 in 45/70	Rule303	02/01/13 02:53 PM
Re: Accuracy advise for Ruger No1 in 45/70	DarylS	02/01/13 03:31 PM
Re: Accuracy advise for Ruger No1 in 45/70	fourbore	02/01/13 07:57 PM
Re: Accuracy advise for Ruger No1 in 45/70	Tom30887	02/01/13 09:02 PM
Re: Accuracy advise for Ruger No1 in 45/70	DarylS	03/01/13 06:23 AM
Re: Accuracy advise for Ruger No1 in 45/70	fourbore	18/01/13 10:18 AM
Re: Accuracy advise for Ruger No1 in 45/70	DarylS	18/01/13 11:12 AM
Re: Accuracy advise for Ruger No1 in 45/70	tophet1	06/02/13 07:36 PM
Re: Accuracy advise for Ruger No1 in 45/70	DarylS	07/02/13 02:23 AM
Re: Accuracy advise for Ruger No1 in 45/70	PTinMT	09/02/13 07:27 AM
Re: Accuracy advise for Ruger No1 in 45/70	458ONLY	03/04/13 01:09 AM
Re: Accuracy advise for Ruger No1 in 45/70	bonanza	03/04/13 02:30 AM
Re: Accuracy advise for Ruger No1 in 45/70	DarylS	03/04/13 03:15 AM
Re: Accuracy advise for Ruger No1 in 45/70	albertan	06/02/13 06:13 PM

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