Friday 2010-10-29 Dev. update and Discussion

[Skoshi Tiger]

Originally Posted by ElAurens

Thanks for the useful info Jaws.

The FN video taken from the fixed wing aircraft cockpit really shows best how tracers should, and will, look in the sim, with correct colors of course.

I have seen 30.06 tracers fired on a range from a bolt action rifle (US Rifle, cal .30, Model of 1917. Same as the British P14 Enfield only in .30-06 instead of .303) and even standing behind the shooter who was shooting from a bench rest there was no visible "spiral" pattern of the tracer, and no smoke either. This was with WW2 era tracer ammo.

In all this discussion nobody's mentioned that we have no idea about the condition of the barrels being used in those videos.

After the battle of Milne Bay some of the .50 cals on the RAAF Kittyhawks had been shot out to .60 cal (During the two week long battle, the RAAF fired 200,000 rounds of .50 cal from their Kittyhawks).

I'm sure the balistics from thoses guns would have been interesting.

A few pages back duff442 posted a few charts. The one I found interesting was

http://www.nennstiel-ruprecht.de/bullfly/fig18.htm which showed the 5.56mm AP round.

In it, the spiral motion reduced as the round gyroscopically stabilized itself after leaving the barrel.

Given that the charts only measured the round in the first 8000 calibres (44m for the 5.56mm) I doubt anything other than a high speed camera would be able to distinguish the motion. Unfortunately I can't read the scale (on any of the charts) that shows the magnitude of the displacement being measured.

Cheers!