Well, this is strange.

[Catt57]

A 1950's Noble Model 10. It shoots right on the money but look at the rear sight offset....

This is 15 shots at 25 yards. And it has no trouble hitting a 3" plate at 50 yards and a 6" plate at 100yds.

I put a straight edge up to the barrel and it doesn't appear bent. The bore (chamber and muzzle) also looks to be concentric to the barrel although I haven't taken measurements. I also tried several types of ammo and the point of impact shifts very slightly, but not enough for this to be caused strictly by the ammo. Also, the front sight does not appear canted or offset in any way.


The bullseye is 1" (I have it turned 90 degrees. The right edge was the top while I was shooting it.)

The rifle

Now look at the rear sight offset....

And the front sight.

 

[RETOKSQUID]

Could be the lands and grooves are deeper to one side???

 

[retrieverman]

The rear sight is probably ”offset” because the front sight looks bent to the left.

 

[Catt57]

Could be the lands and grooves are deeper to one side???

Well, it is over 60 years old and was a "budget" rifle at the time. So. maybe??

 

[PBramble]

Probably just the picture, but that barrel looks bent.

 

[Catt57]

The rear sight is probably ”offset” because the front sight looks bent to the left.

Probably just the picture, but that barrel looks bent.

Here is a better pic of the front sight alignment. (Also added this to the original post)

 

[rickm]

Yeah same here looks bent to the left but could just be the pic

 

[retrieverman]

Given the accuracy, who really cares where the rear sight sits on the barrel.

 

[Catt57]

Probably just the picture, but that barrel looks bent.

Yeah same here looks bent to the left but could just be the pic

With the rear sight centered on the barrel it hits several inches to the right at 50 yds.

 

[DRC458]

That's one of them new 'gangsta' rear sights!