I found a couple of interesting items at the local gun show yesterday, which I will put in two postings. First is a couple of old duPont powder cans, apparently full and unopened. I have many powder cans from the 50s and later, but none this old. Maybe someone can help me with an approximate date, I suspect they are from sometime in the 1930s. What modern IMR powder is duPont #80 like? I am guessing something like IMR 4227 (or faster), but I cannot find any information. I find it interesting that reloading data is printed on the rear label. I have several earlier Hodgdon cans which did that also.
I am thinking about loading up some cartridges using the #80 recipes, but wonder if it is best to leave the full cans full or not. Any ideas on that? (It wouldn’t be the first time I have done that with old powders, but not this old).