As I stated in a previous post I am trying to sort through some handloading supplies I inherited and I am wondering about some different powders. I have a bottle of Blue Dot and a bottle of Hodgdon H110 and I want to know what the best use of these powders would be. Would these powders be safe and useful for any of the calibers I have dies for = 38/357, 45, 9mm, 30-06, and .223/5.56. If not then what would be the right caliber round to put these powders into service. I would like to avoid buying a new gun and die just to put this powder to good use. I have much to learn about burn rates and pressures so I appreciate all your help and patience with me and thank you all in advance.