chetc Posted May 27, 2019 Share Posted May 27, 2019 i have a fixed sight on my 9mm semi pistol, it is shooting 3 to 4 in high at 10yds. i am going to set it up in my bridgeport mill and machine off the top, mathematically speaking approx how much material do i have to cut off. chet Link to comment Share on other sites More sharing options...
Guy Neill Posted May 28, 2019 Share Posted May 28, 2019 What is the sight radius? Link to comment Share on other sites More sharing options...
Guy Neill Posted May 28, 2019 Share Posted May 28, 2019 Do you want it zero at ten yards? Assuming a 7" sight radius, and moving it 4" at ten yards, you need to remove 0.076" by the calculator I have. Link to comment Share on other sites More sharing options...
kmca Posted May 28, 2019 Share Posted May 28, 2019 From Dawson Precision: https://dawsonprecision.com/sight-calculator/ Link to comment Share on other sites More sharing options...
chetc Posted May 28, 2019 Author Share Posted May 28, 2019 13 minutes ago, Guy Neill said: What is the sight radius? 7 1/2" Link to comment Share on other sites More sharing options...
Guy Neill Posted May 28, 2019 Share Posted May 28, 2019 That appears to make it 0.082" for zero at ten yards. Link to comment Share on other sites More sharing options...
chetc Posted May 28, 2019 Author Share Posted May 28, 2019 9 minutes ago, Guy Neill said: That appears to make it 0.082" for zero at ten yards. HI Guy thank you for your math skills. i will start at .070 and hope that it prints just a tad high at 10yds chet Link to comment Share on other sites More sharing options...
chetc Posted May 28, 2019 Author Share Posted May 28, 2019 Just now, chetc said: HI Guy thank you for your math skills. i will start at .070 and hope that it prints just a tad high at 10yds chet ps by the way the gun is a 9mm canik tp9sfx, for a striker fired gun, it is giving my single action CZ"s fits Link to comment Share on other sites More sharing options...
Powder Finger Posted May 28, 2019 Share Posted May 28, 2019 maybe not enough coffee yet but if it's high don't you want a taller fs? Link to comment Share on other sites More sharing options...
Guy Neill Posted May 28, 2019 Share Posted May 28, 2019 Either take the rear sight down to lower the impact point, or build up the front sight. Link to comment Share on other sites More sharing options...
Yondering Posted May 28, 2019 Share Posted May 28, 2019 3 hours ago, Powder Finger said: maybe not enough coffee yet but if it's high don't you want a taller fs? Yes, need a taller front sight or shorter rear sight. Link to comment Share on other sites More sharing options...
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