I wouldn't be surprised if the majority of people shooting the modern inlines shoot 150grains. I actually thought that was the max for 99% of inlines. I know 777 has to be 100gr or somewhere around there. I used to shoot 150grains, then tried 100 and didn't see any difference in accuracy up to 100yds and since that would be the furtherst I'd ever have to shoot in my neck of the woods, I dont think it matters to the deer if its hit with a bullet pushed by 100gr or 150gr. Just my thoughts, but its like I get a free round of powder after every 2 shots