10 gauge RCC brass

[Milton C Starr]

Originally Posted by Eric Johanen

Harry, if the brass hulls are in otherwise good condition see if you can find a 12 gauge sizer die. Possibly from a cowboy die set Lyman or RCBS. I found mine in a box on a gun show table many years ago. Solid brass cylinder with a rim cut. Lube the hull and drive in with a raw hard mallet and push out with a dowel. i have one hammer gun dedicated to these shells and even so they benefit from a resizing every now and then. They last a very long time and may need to be annealed occasionally. When the mouths start to split the can be trimmed and continue in use. I only use black powder with these loads and the perform very well.

I dont know how this applies to shotshells but ive read with blackpowder rifle cartridges you want a good gas seal to keep fouling from blowing back in the action as cleaning the bore is easier then taking the action apart after every shoot . Is that a problem when reloading black powder in brass shotgun cases ?

What brand of bp do you use ? seems alot of guys really like the swiss stuff .