i just set up one of my MEC Sizemasters in 410. i ordered a 410 set of dies a couple of years ago when they were about 90.00, for feeding a Judge i picked up. i was going to swap it back an forth on my steel master press. then i found a Sizemaster sitting in a friends basement that he didn't use after he bought it. He sold it to me and now she is a 410 press. my inspiration to get it switched over was that i found a used Henry 410 20" barrel on Gun Broker that called out to me to be rescued. so she is my newest Rescue, her box was a little shabby but she is settling in with the new family quite well now.