I wouldn't worry about the difference of 5gr in bullet weights. You could get that much of a difference using different alloys out of the same bullet mould. I'd use the 225gr data anywhere you see it interchangeably with 230gr bullet data.
5gr difference in a .22 bullet, now that is a different matter, but we're talking about big fat pistol bullets.
5gr difference in a .22 bullet, now that is a different matter, but we're talking about big fat pistol bullets.