Received a message from Geoff at Woodleigh,to say that they are producing a" Hydrostatically Stabalised" mono solid in 303 x 215gn.
Geoff is confident that they will not produce anymore presure than the RN SN.
So all you 303 fans something new to try.
My next email will be to order some to try in my 303 Rigby Lee Speed.
Al