I was under the impression that this cartridge was very popular unit I started looking at bullet weights, and as you mentioned I could only find 140 gr. bullets. I did find some 150 gr.sp from Federal sold by Cabela’s. If you have a 7mm-08 or intend on getting one you might have to consider reloading. The choice of bullets weight starts at 100 gr. and goes up to 175gr. Good luck..