Hope these are of some use
https://www.wikiwand.com/en/Diopter_sight
https://www.quora.com/What-scopes-ar...iathlon-rifles
https://bedstargetsupplies.co.uk/wp-...is_Fordham.pdf
If the gap between the target black & front sight ring is to big you may well want a smaller front sight element (or an adjustable one).
lf its too fine a gap you'll be edging the target black into the ring of the foresight & loosing accuracy/grouping so you'll need larger gap
As has been said a good book on the subject will help
Here you go Gary:
https://www.nsrashop.co.uk/collectio...arget-shooting
Gary
If you would like any guidance when you get the book, you are welcome to email me on robin.carter80@ntlworld.com
Best of luck
Have Fun
Robin
Walther KK500 Alutec expert special - Barnard .223 "wilde" in a Walther KK500 Alutec stock, mmm...tasty!! - Keppeler 6 mmBR with Walther grip and wood! I may be a Walther-phile?
Thanks Robin, much appreciated.
I am not really a novice shooter, shot field target, hunter etc but have lost mobility after a accident. Rather than pack in shooting, now I can stand, I will practice what was always my weakest discipline. Motivated by a accident, life and target's.
Regards Gary