I shot a couple of boxes last summer in my 280, and never could get them to group very good. Two to three inches at 100 with most powders. The polycarbonate tip and the skinny ogive makes it hard to seat them close to the rifles for one thing, but even seating them longer than my maqazine, I never did get a good shooting load. For compaison, I can get five shot groups with nosler bt's under an inch on a regular basis, and the 140 bx will average about 1.25-1.5" Im sure the scirocco bullet will stick together better than ballistic tips, but my accuracy results were sort of disappointing. I think I have a few of them left, you have perked my interest now, I might go load a few up and stick them in some does next week and see what happens. Good luck.