anyone know where a guy can get these 215 gr bullets Kombi speaks of? And would that be safe to shoot in a '43 lithgow? gotta be movin awful slow i'd think..
WN hit the member of the ethnic minority, I mean, the nail on the head....(oops, Freudian slip

).

You need to do some study on the history of the great 303 British.
The MkI and MkII version of this cartridge was both loaded with a 215gr cupro-nickel FMJ RN and the Cordite smokeless load in the MkII clocked in at just under 2000fps.
However with modern powders it's capable of more velocity.
ADI, who make many powders for Hodgdon, give 3 loads for a 303 215gr in their Smokeless Powders Handloading Guide 4th Edition, 2 of which will be easily available to you.
A 39gr load of AR2206(BLC(2)) will push a 215gr bullet to 2250fps and 39.5gr of AR2208(Varget) will push one to 2265fps.
I think that's pretty respectable and it's only about 150 to 200fps behind a 30-06 with a 220gr bullet.
Using Woodleigh's 215gr RNSN, which has a BC of .359, at around 2250fps will give you a max PBR of about 220yds and at 200yds it still has just under 1600ftlbs.
I'm not actually using Woodleigh bullets however.
A company called Taipan makes a 215gr RNSN and I managed to get a couple of 100 packs for $40 each, which is cheap.
Normally 200 bullets in that weight range would be well over $100.
And actually finding 303 215gr bullets is the trick too although Woodleigh stuff is easy enough to pin down in Oz.