Originally posted by HowaGrendel
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It is 150M from his suite to the corner of Las Vegas Boulevard and Giles St. Another 150M to the centre of Las Vegas 'Village', which is where the Route 91 concert was being held. That is 300 metres (Ref; Google Maps). Wikipedia is claiming he was shooting 400yds or 365metres.
Looking back from the venue to his suite is 32 stories up. Using the standard height calculator for a hotel I make it 108M up. That extends the distance from 300 to about 320metres.
Police shooting back from ground level and correctly estimating the range to his windows will need to account for the angle, 20degrees. The cosine multiplier for that angle is 0.94 so 320 metre angled shot becomes equivalent to a 300 metre level shot.
Wind speed according to national Weather Service was averaging 6.4mph on the day from the NE, so no practical influence to either shooter or police.
Factor in a whole bunch of people in adjacent hotel rooms probably at the windows wondering what's happening and that is where a long difficult shot with iron sights becomes potentially deadly to civilians. While he can blaze away into a packed crowd any Police shooting back with long guns would have to be a whole lot more careful.
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