The Marlin 94 will not accommodate the .357SM as the case is to long...I have read that the Winchester 94 chambered in a .357 mag. can be converted to a .357SM.... Do a search at www.leverguns.com or ask your question over there to find out more...savagefan said:Does anyone have experience with this round? Am contemplating having a Marlin 94 in 357 mag rechambered, has anyone done that and if so how was it?