Just checked the handload chart for my chapter on the .270 Winchester in my upcoming book, GUN GACK IV: The Little Book of Rifle Handloads that Work.
It consists of handloads that have shot well in more than one rifle of the same chambering over the decades. If I would have depended on my memory, would have said 150-grain bullets generally shoot better in the .270 and than 130s. But have loaded for 15 .270s and found that wasn't true: 130s were just as accurate, on average.
Just turned the chapters and charts into Eileen, so she could get started on laying the book out for publication--so we're on schedule to get it out by around October 1st, depending on how quickly the printer can get it done. There have been slight difficulties due to paper availability lately.