Aperture insert size for Redfield Olympic

[DJnRF]

I need to get some new inserts for my Redfield Olympic
front sight. Unfortunately, I cannot remember the
proper size I need for the different distances.

I want to get the proper inserts for .22 rimfire to use
at 50 ft, 75 ft, 150 ft, and 100 yards.

The diameter of them is standard for this sight, but
the aperture hole should be of the size needed for
the distance as compared to the caliber. I don't have
any marked of the very few I still have, and need to
purchase more, but of the right sizes for the distances
I will be shooting. There is one heck of a selection of
from .060 to .160 in from .010 or .005 increments.
That is a heck of a number of choices.

Does anyone know of what sizes to use with a A-17
small bore, 50 ft target? At least that would help to
guide me to figure out a formula for the other distances.

[300 H&H]

DJnRF,

Personally I use 3.2mm most of the time, but if the light is stong or weak, I may use anything form 3.0mm to about 3.5mm. I have now gone to a front sight that is infinately adjustable. Saves time changing inserts.....

Remember the NRA targets are scaled up in size with range. The openings I list above I use with all NRA targets form 50ft to 600 yds. Just what I do...


Regards, Kirk

[DJnRF]

Originally Posted by 300 H&H

DJnRF,

Personally I use 3.2mm most of the time, but if the light is stong or weak, I may use anything form 3.0mm to about 3.5mm. I have now gone to a front sight that is infinately adjustable. Saves time changing inserts.....

Remember the NRA targets are scaled up in size with range. The openings I list above I use with all NRA targets form 50ft to 600 yds. Just what I do...


Regards, Kirk

Well, this starts me in a ballpark to work with.
I do precision shooting, and in so doing I use
the A-17 target out to 150 foot. In doing this
I like the sight picture of the bullseye to fill
the entire aperture hole with no background
surrounding it. I use the yellow insert to
enhance my sight picture. (as shown below)
The size of the aperture must change with
the distance to a much smaller one to do this.

I know that this type of shooting is unusual,
but I find that it helps me in control of my aim.
You know? The old code word, BRASS. Years
back I found that it really does help a person
to control the heart rate, breathing, and pulse
that all can throw off a shot.

I can't remember, but I seem to think that I
recall the use of a .080 (2.0 mm) for the
150 foot target. I am just not sure due to
trying to remember such things from 50 years
back. (Just a tired ole brain, I guess.)

My eyes are not as good as they used to
be back then, so it takes more concentration
to focus these days. I still very, very rarely
use a scope. All those do is to magnify your
mistake. One never can get true control
over the BRASS concept then.

I thank you for the info, and quick response.
Guess I will have to buy about half the
insert to try, just to get it right. At least
I don't have to buy them all.

Thanks much,
Dave.