Dual Aperture curiosity

[Potashminer]

I hope this is correct forum - precision shooting. I am just learning to use double aperture sights - small hole in rear sight; circle insert in round front sight "globe". To be used on bullseye targets. Everything I read emphasizes to focus on the front sight - get it sharp and clear - let the rear and target go fuzzy if necessary.
Oddly, however, the front insert becomes crystal clear, sharp and round, when I am noticeably to the right of centre in the rear aperture. If I am centered in the rear sight, the left side of the front side appears no longer round, no longer sharp. I have checked for "grunge" in the rear sight aperture, and the front sight insert appears flat (not bent or twisted).
Perhaps others have experienced this?? A function of my prescription glasses?? (short sighted (myopia), and astigmatism correction) My age? (I am 64). Any solutions? Maybe just go with the clearest view of the front sight and live with it?
This is occurring with a brand new Daisy 5899 Receiver sight (not yet set for windage or elevation) on a Daisy Avanti 853C - 10 meter targets. Perhaps thousands of Canadian Cadets are using this set-up, so hopefully it has been dealt with by someone already?

 

[Mystic Precision]

Check your glasses... if you are running progressives, this position becomes even more critical (I shoot with progressives). My head position has to be just so... and that might not support the stock and sight positions as they are currently mounted on the rifle.

If your head/eyes are square to the rear sight AND your focal view is through the apppropriate part of the lense, you will be able to center the front and rear apertures. Yes, the front will be 'sharpish' vs the target and the rear a blur.

The brain will center the eyeball into the rear sight if the vision is correct so you can pay attention more on the front/target vs position and wobble.

With my current state of prescription, open sights is more hassle then it is worth so I run optics .

YMMV.

Jerry

Send Iron Cat a pm... he still runs with open sights and can offer some great info.

 

[Got Juice?]

I hope this is correct forum - precision shooting. I am just learning to use double aperture sights - small hole in rear sight; circle insert in round front sight "globe". To be used on bullseye targets. Everything I read emphasizes to focus on the front sight - get it sharp and clear - let the rear and target go fuzzy if necessary.
Oddly, however, the front insert becomes crystal clear, sharp and round, when I am noticeably to the right of centre in the rear aperture. If I am centered in the rear sight, the left side of the front side appears no longer round, no longer sharp. I have checked for "grunge" in the rear sight aperture, and the front sight insert appears flat (not bent or twisted).
Perhaps others have experienced this?? A function of my prescription glasses?? (short sighted (myopia), and astigmatism correction) My age? (I am 64). Any solutions? Maybe just go with the clearest view of the front sight and live with it?
This is occurring with a brand new Daisy 5899 Receiver sight (not yet set for windage or elevation) on a Daisy Avanti 853C - 10 meter targets. Perhaps thousands of Canadian Cadets are using this set-up, so hopefully it has been dealt with by someone already?

I had a buddy in the USA that stuggled with this same issue. Eventually he found a solution. Wearing corrective lenses to fix the Astigmatism, and then a dedicated non progressive lense to correct his vision whilst shooting.

When I travelled to the USA to shoot, I used to whup his butt. After he made these changes, it was up to the wind gods as to who would win.

I hope you find your solution. My friend sadly passed 2 years ago, otherwise, I would send you his contact info.

 

[maynard]

Regular glasses will be difficult as the optical centre of your glasses it not where you are looking when your head is on the stock. I wear a pair of Knobloch shooting frames with a single vision lens for the shooting eye and a blinder on the other side. There is a pair of knobloch’s on the EE right now.
After you have the correct lens if the front insert or target do not appear round you need a bigger front insert. I shoot irons sights from 300 to 1000 yards and use a front sight insert large enough to frame the whole target. 1000 yard targets are 6ft square.

 

[iron cat]

Regular glasses will be difficult as the optical centre of your glasses it not where you are looking when your head is on the stock. I wear a pair of Knobloch shooting frames with a single vision lens for the shooting eye and a blinder on the other side. There is a pair of knobloch’s on the EE right now.
After you have the correct lens if the front insert or target do not appear round you need a bigger front insert. I shoot irons sights from 300 to 1000 yards and use a front sight insert large enough to frame the whole target. 1000 yard targets are 6ft square.

All of the above!
I was taught at a very young age it is better to go bigger than smaller with the front insert , and to look through the rear sight not at it .
I din’t Wear corrective shooting glasses but do have astigmatism , it has caused me some grief at times when shooting with s scope and often when shooting irons , but I deal with it by making sure my head is in the correct position , checking it often
Cat

 

[big boar]

Just a thought but are you certain the rear sight is perpendicular to the front? As an exaggeration, hold your right hand up & make a circle with your thumb & fingers to look through. Now twist your wrist and you will see the circle (your rear sight) has become oblong & you would have to shift your face to the side to be looking through the hole properly. Just something to verify.