M-37 should cycle any brand shell that it is chambered for. If not then it needs a fix. clean chamber, new extractors and springs,check chamber tolerances.I have had some that required a little work on the extractor slot in the barrel because it did not align with the slot in the receiver and the rim would catch on the offset between them sometimes it stuck and then it wouldnt when I was watching things move in the action. that was because the shell changed position when I turned the action upside down.
