Last week I found 10 discarded .30-40 Krag rounds at the range. Appeared once fired. Sized them yesterday, am reloading today. Randomly checked OAL on 4 rounds and okay. Apparently one of the remaining 6 rounds was shorter for unknown reasons. It is photographed next to a normal round. As was discarded brass, was presumably fired in shorter configuration. Okay to fire and discard or should I pull the bullet?