I am looking to get a 350 gr. mold for my Marlin Guide Gun. Been looking at the NOE 460-350-rf GC. What is the difference between NOE molds and Ranch dog molds. The bullets appear to be almost the same with only slight variations. Are they designed for the 45-70 col at 2.55"? Lastly, Are the brass molds worth the extra $$$. ? Thanks, Stu