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Posted: 12/27/2011 4:41:55 AM EDT
[#1]
Quoted: Heres my question i have a p90s with the factory optic usg model with black reticle, my question i am useing the fn ammo hollow points i believe 28 grains i sighted it dead on at 50 yds but at 25 yds its dead on but 4 inches low back to 50 and its dead on first time i have seen this. Any body know why? Thanks The height over bore on the P90/PS90 is pretty bad - look at the height of that optic over the center of the bore. The 5.7x28 cartridge also has a maximum effective range of just under 200m. |
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Posted: 12/27/2011 5:38:43 AM EDT
[#2]
4 inches would be a bit low for 25 yards with a 50 yard zero regardless of ammo. |
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Posted: 12/27/2011 8:08:19 AM EDT
[#3]
thank you for responding looking at the chart then looking at my target I'm actually a little lower then dead on at 50 yd so that would explain it, thanks again
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