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Taller rear sight

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Jason holgate

40 Cal
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My kibler is shooting low 4," where can I get a taller rear sight ??
 

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Have you considered filing the front sight down a bit? You can find an assortment of rear sights at Track of the Wolf.
 
I put new sights both front and rear on my .58 rifled Colonial. Had to file down the as-supplied front so low (to bring POI up) that I was seeing top of barrel flat in the sight picture. I like the sights higher off the barrel anyway and gets them further away from heat shimmer as well.
 
My kibler is shooting low 4," where can I get a taller rear sight ??
At what distance is it shooting low?

Also seems every new quantity built ‘custom’ long rifle I have seen shoots low, with the front sight left high to be filed down to raise the point of impact that pleased the proud new owner.
 
Have you considered filing the front sight down a bit? You can find an assortment of rear sights at Track of the Wolf.
The front sight blade on the Kibler is purposely sized to be filed down for zeroing the rifle. I’d recommend that you try this before replacing the rear sight. Of my dozen flintlocks, the Kibler sights are one of my favorites in terms of appearance, visibility, and fine target acquisition. If you are 4”
low at 50 yards, you are only filing the front sight blade down approximately .060”……Much easier then trying to dovetail a replacement rear sight. IMO.
 
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From my tedious experience of having to do so, filing a too tall rear sight is more of a pain than filing a front sight.
If you really want to, order the replacement rear recommended above, and while you wait for it to arrive try filing the front.

My method is a little different, but might work for you of you have a knife edge file. I darken or blacken the front chemically (a lot here depends on material, brass or steel) and using the knife edge file I cut a horizontal line across the site face about where I think the top will be, better to start a tiny but on the high side. (There are mathematical equations for figuring this out of you have the data to plug into them)
I use that bright line across the dark sight as the top of the site for shooting a test group. If it is good I file the sight down to that line, if still shooting to low, file down to it and cut a new line. Repeat as needed. If a steel sight is in play I only file to just a tiny bit above the line, blacken with bluing agent and recut the line, refreshing it now and then to give me a high vis mark on the sight to use when shooting in dim light. Obviously a second line could also be cut lower than the 1st as an index for a longer range.
 
Were you doing a bunch of windage adjustments on your sights when you shot that target? If not then what I’d suggest first, is to find a load that shoots a much better group before you worry about finding a different sight. The target you posted is terrible. Once you get a “close to cloverleaf” group at 50 then start filing or changing the sights. You might be surprised that sometimes the POI might go up and down with just different loads.
 
Here's the starting formula to change the sight height to move the point of impact toward the point of aim.

Quick and easy adjustment formula

Sight radius (distance from sight to sight), times distance to move impact, divided by distance to target = sight adjustment (all in inches)

So lets say your distance sight to sight is 20 inches
20 X 8 /1800 = .088889

Plug your actual sight to sight measurement in and head off to the range with a file and digital dial caliper and you will be hitting center in under an hour.

25 yards = 900 inches
50 yards= 1800 inches
100 yards = 3600 inches
@Jason holgate needs to measure the distance from the rear sight to the front sight. It will probably be about 30".

30*4/1800=0.067"

I think @Art Caputo and I are using the same formula.
 
Based on the size of those holes, it doesn't look like 4 inches.

Looks like well under 3 inches.

Then again, we don't know the caliber.

I'm in the file the front sight camp.
 
I would shoot more groups before I would get a new sight. I always bench shoot my guns to see what kind of groupings I'm getting then I change one thing at a time. Amount of powder, patch thickness, ball dia. patch lube. till I get a good group at 25 yds. then to 50 yds. Your target group is to spread out, Jims rifles will shoot much better than what is shown.
 
My .32 SMR shot about 2" low at 25 yds Worked up a good load that group really well. Than filed the font sight. I was surprised how little filing it took.
Thats how far i can hit a squirrel with my eyes. So if and when you file go slow a shoot it between filing
 
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