I use I.V.I ( Industries Valcartier Industries) brass all the time for reloading. A lot of brass gets confused with I.V.I. Just because it has crimped primers, does not mean it is I.V.I. There are a lot of manufacturers that use crimps in there brass. But if it is I.V.I., get a Lee case mouth chamfer tool, put your deprimed brass is your drill and with the pointy end of the chamfer tool, gently ream out the crimped edge of the primer pocket. This is a one shot deal and will not have to be repeated. I've used I.V.I. 303 British, 7.62 X 51, 5.56 X 45, 9mm Luger, and 38 Special. I find it to be a very tuff and durable brass. The case walls are a little thicker, so if you are using maximum loads, I would reduce slightly 5 to maybe 10%. The thicker case walls makes the brass more durable IMHO.