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Beekeeper
11-24-2009, 11:28 AM
I asked the question on another post and thought I would ask it again here as the other post may not have been the place to ask.
I have a 577 snider that I am loading for.
I am using Jamison brass and even after resizing it is still very hard to chamber.
Don't know if it is small chamber or large brass as I have not been able to find any data at all.

So I want to try fire forming the cartridges.
How much unique should I use to fire form using COW and a cardboard wad?
As I cannot fire here at home I need to load about 20 cases aand take them to the range.


Jim