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Old 8th October 2010, 08:47 AM
PeteM PeteM is offline
Senior Member
Join Date: Nov 2008
Location: Chagford, Dartmoor, Devon
Posts: 446
Default Magnus Effect

Practising yesterday I came across the effect again, it was very subtle, but definitely present.
30 yards & 50 yards, 15mm kill.
Average wind speed of 12mph at 90 to Path of Flight, right to left. (Full Value windage)
I was getting POI movement high and left of approximately 3 to 5mm.

So I thought I had zero shift. Went down to my zero range which is pretty much out the wind running perpendicular to a Devon hedgerow in a ditch. Zero was spot on.

Went back to were I was practising in the wind. Same POI movement.

Now the interesting part, I moved my position so the wind was at 45 to Path of Flight.
(Half Value windage)
No POI shift, spot on.
There is nothing impossible to those who will try!

ISP Airstream MkIII + Gary Cane Stock + Falcon Menace 16x with FT Reticle
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