[QUOTE=winny;334333] Ball ammo didn't suffer from this effect (tumble) and ....QUOTE]
This is incorrect.
From WWI the british were using the MKVII round. (MKI round was used in the Boer war and although Australia was making rifles using the MVI round up to WW1 Britain had moved on to the MKVII round by the start of WWI) Why we have the MKI and MKVI (using 215gn round nosed bullets) in the sim is a bit of mystery to me unless they were using up their pre-WWI stocks?????
The MkVII .303 Ball) round is designed to tumble on impact. The copper jacketed round has a lead base and light weight aluminium tip (Sometimes substituted with wood or even compressed paper- sterilised to avoid infection of course!)
The bullets were designed this way because the round fired from the standard service rifle would only travel at about 2440fps which not quite fast enough to cause cavitation injuries comparable to Mauser splitzer rounds. So to stay within the Hauge convention rules they had to make the bullets tumble to impart thier energy to their intended targets (people), this makes them less than efficient on targets like planes.
Does anyone know why we don't have the MKVIII round in our load outs? This was slightly more powerful than the MKVII and had a more aerodynamic boat tailed round. It was developed for the Vickers Machine gun but as far as I know there wouldn't have been any problem running it through the Colt Brownings used by the RAF. In the SMLE rifles it did cause more barrel wear and it's use was discouraged.
Cheers!
http://web.archive.org/web/200807070...eapons/303.htm