Used Magtech 9mm 147gr for IPSC. Worked well.
Yes, for 9mm, many of my carbines like Magtech 147gr the most. Heck, I just put a box through my FPC yesterday. Ran fine as usual. 147gr is generally not as available as 124 and 115 on most lines, so happy to get a reliable 147gr subsonic when I can.
I have also run the Magtech Tactical .308 (green box) through my hunting rifles. Is pretty reliable and performance is decent (better than the Federal, Winchester, and PMC I tried), so no complaints.
Some people have mistaken Magtech with Maxxtech (the latter of which is absolute junk). Magtech, on the other hand has been fine. I'd certainly pick more up if the price was right.