Quite a few of the reloaders at my club use Gun Club hulls, they can reuse them 5-6 times before the hulls split. Plus they're abundant in availability, I give those guys my empties if they want them....Yup, I've had a few of the Rio blue steel rounds either not fit in the chamber or refuse to come back out. The hulls are cheap, and you can reload them, but there are far better hull options for reloading.