They aren't talking about Shotgun shells. Pistol shot shells..:grin:What???? JUst some guy? To load up 410 shot shells, he will need a shot shell press and use shotshell loading data which is obtainable on the web. It is a whole different setup and your method could lead this OP astray. I load 12 ga and it's a whole new game.
bingo...thought the description gave that away. I have the blue plastic shot holders from Speer. Have all the load data. Wanted to know if anyone had done this and if they had any advice on things to look out for.They aren't talking about Shotgun shells. Pistol shot shells..:grin:
Yes, load data is included for about half a dozen different powders. Crimping and seating is probably going to be a bit of trial and error.I have never loaded "handgun" shotshells with those fancy shot holders like from Speer. I would hope that Speer would have that data in one of their manuals, though I don't have mine in front of me. You might go to their site and post a request for some information about them. The same thing would apply though. The weight of the shot column and expected velocity will be the deciding factor as to how much powder you can use. With those I would think a mild TAPER crimp would be more in order as you don't want to crush or cut them. The force of the propulsive gases breaks them up and launches the shot column.
A roll crimp you say? So you're saying you want them to more or less separate at the crimp line to disperse the shot?The older Speer manuals have data, but effectively, weigh the cup & shot, use any data that meets the weight. A slight roll crimp will hold fine.