So can anyone tell me what ranges the folding leafs were supposed to be good at? Is ther actually a fixed notch between the two that fold or does one actually use the hammer notch like a regular Colt?
On my set,
there is a fixed sight with a groove in the middle between the two leaves of the rear sight.
The leaves are not marked in anyway that I can see.
The fixed center element of the rear sight rises 1/8" above the base of the rear sight which is a 1/16" above the top of the barrel lug flat, which is another 1/16" above the top of the round barrel (
all measurements done with a 1/32" ruler and 69 year old eyeballs.)
This puts the top of the
fixed center element at 1/4" above the top of the round barrel.
The rear, short leaf is 1/16" higher than the center sight so it is
5/16" above the top of the round barrel.
The forward, tall leaf is 1/8" higher than the center sight so it is
3/8" above the top of the round barrel.
All rear sight elements have 1/32" deep notches cut into them
The notches are 1/16" wide at the top narrowing to a sharp point.
Each notch is cut so that the front of the notch is 3 times wider than the back of the notch.
The front sight is a ramp that rises to a flat that is 1/8" above the top of the round part of the barrel.
Said front sight flat is surmounted with a pin that extends another 1/8" above the flat so the
top of the pin is 1/4" above the top of the round part of the barrel.
The pin is 17.5" in front of the fixed center rear sight element with the front leaf 1/16" closer and the rear leaf 1/16" further away.
Lining up the notch in the
fixed center rear sight so that the top of the front sight pin aligned with the top of the rear notch would indicate that the barrel was
level.
Using the
rear leaf in a similar manner would raise the muzzle 1/16" or
0.2 degrees of elevation.
Using the
forward leaf in a similar manner would raise the muzzle 1/8" or
0.4 degrees of elevation.
I have not shot this set so I can not relate these specifications into practical distance data.