Originally Posted by 300 H&H
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...
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.