Only a couple boxes of each so far, but no issues with CCI MiniMags and Blazers at all, only 2 fail to feed with Federal Champions (stovepiped, worked fine on try #2). Remington Goldens are iffy in many guns, I quit using them. These were the first rounds through these particular magazines and they may smooth out with use. I want to try some of the weirder stuff, like Yellowjackets and the like, but I'm not holding my breath. CCI and Federal are common in my area.

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