I have, and ruined a bore of a 300RUM over it. If you really want a set of bullets, let me know and I can sell them to you for 1/2 price. Maybe I pushed them to hard. I used H1000 starting load. Maybe I should have used something like a weak 4350 load. My barrel was extremely rough. It copper fouled greatly. It would shoot accurately for 10 rounds, but then started throwing flyers. After I ran thru the round of bullets, cleaning each time, my accuracy went to 1.8MOA, and I couldn't get it back to shooting well. I bore scoped it and all the lands were rounded off.