If anyone I work for Miha and sitting here waiting for the 220-HP to bill so I can start loading them. This Marlin is a '75 model and seems to do okay at 358 as I had a couple make it through my hay rolls and recovered them between it and the steel plates. Looks to be holding the rifling well but I really need to do a pound cast and slug to see what I really have to work with. I was happy to get some lead down range and wish I had more brass to work with. Next I want to see how that bullet does in my Mod 66. I have never shot a gas checked bullet in a pistol before though and seems like a waste.