30-30 is a great cal. but anything with a tube mag, should be dis-conitued. or banned most hammers are unsafe. There are too many mis-haps while unloading.
When you consider there are only about a gazillion Marlins and Winchester lever guns out there and I personally have never heard of any unloading mishaps I would say they are pretty safe. I have probably unloaded mine about a 1/8 of a gazillion times, and I have never shot myself, the ground or anybody else in the process.
C. Davis