So I’ve been loading 44wcf for sometime now, but I’ve always loaded for my old Winchester Model 1873 which is 144 years old. I also load for a 130 year old Winchester 73 as well and so far to date, no issue.
Now I have bought a new Cimarron MP523 in 44wcf and the black powder rounds that I have loaded will not go all the way into the cylinder. The head of the case sticks up about a 1/4 inch I guess. My bullets are sized to .429” and the odd thing is, I have loaded .429” bullets for this gun in smokeless powder before with no issues. Now I’m loading black powder and now I have a issue.
I think that with the compressing of the powder, that it’s expanding the neck of the case. I’m using a compression die on 35 grains of 2F and compressing the powder to where the bullet just barely compresses it. Seating goes well as well as crimping.
So I took one of the bullets and eased it into my resizing die and that bullet drops into the cylinder with ease.
Any thoughts or ideas on this issue? Anyone ran into this issue before with this type pistol? I’m not sure if running the loaded shells through my sizing die is a good idea or not either.
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