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Grouping follow the sun ?

Posted: Fri Jul 31, 2020 2:30 am
by seamaster
Don Nygord used to say grouping follows the direction of sun due to reflection off front sight edge, shifting front sight in that direction, thus grouping follows in that direction. While many others said no effect. https://starreloaders.com/edhall/nwongm ... urvey.html

But my own experience while shooting at dusk, right before sun set on west, my grouping invariably moved to the RIGHT, AWAY from the sun.

What gives?

Re: Grouping follow the sun ?

Posted: Fri Jul 31, 2020 10:00 am
by huckleberg
seamaster wrote: Fri Jul 31, 2020 2:30 am Don Nygord used to say grouping follows the direction of sun due to reflection off front sight edge, shifting front sight in that direction, thus grouping follows in that direction. While many others said no effect. https://starreloaders.com/edhall/nwongm ... urvey.html

But my own experience while shooting at dusk, right before sun set on west, my grouping invariably moved to the RIGHT, AWAY from the sun.

What gives?
My groups tend to follow phases of the moon ...

Re: Grouping follow the sun ?

Posted: Fri Jul 31, 2020 6:30 pm
by FWB_700_Alu
This is why somebody invented the "Front sight hood". Lever Action Rifles come into mind.

Re: Grouping follow the sun ?

Posted: Sat Aug 01, 2020 10:35 am
by huckleberg
FWB_700_Alu wrote: Fri Jul 31, 2020 6:30 pm This is why somebody invented the "Front sight hood". Lever Action Rifles come into mind.
+1

Re: Grouping follow the sun ?

Posted: Sat Aug 01, 2020 11:00 am
by Rover
huckleberg wrote: Sat Aug 01, 2020 10:35 am
FWB_700_Alu wrote: Fri Jul 31, 2020 6:30 pm This is why somebody invented the "Front sight hood". Lever Action Rifles come into mind.
+1
That must be why they don't allow them on match pistols.

Re: Grouping follow the sun ?

Posted: Sat Aug 01, 2020 11:08 am
by FWB_700_Alu
Rover wrote: Sat Aug 01, 2020 11:00 am
huckleberg wrote: Sat Aug 01, 2020 10:35 am
FWB_700_Alu wrote: Fri Jul 31, 2020 6:30 pm This is why somebody invented the "Front sight hood". Lever Action Rifles come into mind.
+1
That must be why they don't allow them on match pistols.

and why I never understood 2.10.5.(DSB/ISSF) What is so wrong with protecting something?