obsessiveshooter Posted March 9, 2019 Share Posted March 9, 2019 Hi, I know how to calculate a correct front sight height to adjust for elevation, but in this case, I'll be going from big ugly factory white dot front sight to a dawson FO front. I aim with the red FO over my POI, but the white dot does not really correspond with the FO dot on a Dawson. So, should I shoot in it's current configuration with the top of the front sight splitting the bullseye, then do the normal math to figure front sight height, and add to that height the distance between top of sight and center of the Fiber on a dawson sight? It seems correct to me but I dont want to waste $40 on the wrong height sight. Sent from my SM-N960U using Tapatalk Link to comment Share on other sites More sharing options...
Hi-Power Jack Posted March 9, 2019 Share Posted March 9, 2019 Is this speed shooting or precision shooting ? For precision (bullseye, e.g.), I like a 6 o'clock hold with the top of the front sight under the bottom of the bullseye. For speed shooting, I use the FO dot on the center of the bullseye - and forget about the top of the front sight. Link to comment Share on other sites More sharing options...
obsessiveshooter Posted March 9, 2019 Author Share Posted March 9, 2019 Speed shootingSent from my SM-N960U using Tapatalk Link to comment Share on other sites More sharing options...
Hi-Power Jack Posted March 10, 2019 Share Posted March 10, 2019 13 hours ago, obsessiveshooter said: Speed shooting Then I'd measure to the center of the dot, not the top of the front sight. Link to comment Share on other sites More sharing options...
obsessiveshooter Posted March 10, 2019 Author Share Posted March 10, 2019 That wont work because I dont have a dawson sight on their now. The white dot on the factory sight does not correspond in location with the fiber on a dawson sight. Sent from my SM-N960U using Tapatalk Link to comment Share on other sites More sharing options...
Hi-Power Jack Posted March 10, 2019 Share Posted March 10, 2019 If you calculate the height you want, wonder if Dawson would tell you which sight corresponds to that height, at the middle of the dot ? Link to comment Share on other sites More sharing options...
obsessiveshooter Posted March 11, 2019 Author Share Posted March 11, 2019 Let me state my question in a much simpler way...If a person was to permanently go from using a sight picture using the top of the front sight over POI to a new site picture of using the center of the fiber over POI, would they need to order a new front sight that was taller by the distance front the top of sight to center of fiber?Sent from my SM-N960U using Tapatalk Link to comment Share on other sites More sharing options...
jmtyndall Posted March 11, 2019 Share Posted March 11, 2019 Short answer, yes. If you want the fiber to move up to where the bullet was impacting (top of the old sight) that is what you'd do. Link to comment Share on other sites More sharing options...
jmtyndall Posted March 11, 2019 Share Posted March 11, 2019 More to the original post, you can ask dawson for the distance from the top of the sight to the centerline of the fiber (I'm sure they have this), or you can estimate that the center of fiber is ~1 fiber diameter down from the top of the sight. Dawson uses 0.040" fiber. Then assuming the sights come in a height that zeros the pistol at the top of the post, you could order a sight 0.040" taller than their "default" size. For example the sight set for my M&P comes with a 0.180", I would order a 0.220" and go from there. Link to comment Share on other sites More sharing options...
Tunachaser Posted March 12, 2019 Share Posted March 12, 2019 Also Dawson gives you a 50% discount if you need to buy a second front sight if the first sight is incorrect. Link to comment Share on other sites More sharing options...
obsessiveshooter Posted March 12, 2019 Author Share Posted March 12, 2019 Thanks everyone for the confirmation! Sight is ordered. Sent from my SM-N960U using Tapatalk Link to comment Share on other sites More sharing options...
CHA-LEE Posted March 12, 2019 Share Posted March 12, 2019 Also keep in mind that the Fiber in the Dawson front sights are pretty high up on the blade. There will likely be very little offset between using the top of the iron to aim vs the center of the FO rod. Link to comment Share on other sites More sharing options...
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