DougCarden Posted June 29, 2021 Share Posted June 29, 2021 I have a SPO1 with a CZ Custom target rear fixed sight. Has anyone done the math and know what size front sight is needed for 115\124 and 147 Bullets at 25 yds for POA/POI. The 6 o’clock hold on the sights won’t cut it when every other gun I have can be regulated to that. after a bunch of research I decided I didn’t want to go the adjustable route. I have taken preliminary measurements from targets shot at 25 yds and “think” I have the right front sight heights. I would like to confirm with others before I buy more front sights. it appears I need a .225 height for 147. .215 for 115\124. Can anyone confirm? Thanks for any assistance. Link to comment Share on other sites More sharing options...
hlsccsfa Posted September 8, 2021 Share Posted September 8, 2021 Try the sight calculation tool from Dawsonprecision.com: https://dawsonprecision.com/sight-calculator/. Works well for me. Link to comment Share on other sites More sharing options...
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