I dug my 20-year-old Sig P239 out of the safe with thoughts of making it my winter AIWB but had two stove pipes out of 100 rounds, both on the last round of the magazine (round fired, empty case stove piped). Two different types of ammo, IMI 115 grain HP, 124 grain American Eagle. I'm pretty sure it happened with the same mag and I couldn't replicate it with the last 20 rounds I had in the box.
Does that sound like an extractor issue or a magazine issue? Thanks.