6.00x16 tyres on SWB rims?

I've been offered a set of (oldish) wheels and tyres. The tyres are 6.00x16 and on standard SWB series rims. Would these fit staright onto a Disco 1? By my reckoning the tyres are about equivelant to 205/80 r16 which are the standard disco fitment. It would be quite handy if it worked as I could just stick them on for greenlaning and keep road biased tyres on my alloys.

Any help much appreciated.