Shoulder bumping question

[22BRGUY]

One trick I do is when I get a long one (.001-.003 or so) I cut a little paper shim and slide it under the case head on top of the shell holder and size it again to get it deeper without adjusting the die. I may get a feeler gauge set and cut them to fit. Works for shoulders and bullet seating, and I'm surprised at how accurate it is when you get the feel for it. Barlow

Interesting thought and Thanks Barlow....may well try that also...makes great sense and certainly easy enough. Gotta also Thank Donovan Moran for reminding me to keep dies, press, and shell holders clean and specific to cartridge.

 

[Brians356]

if you can manage it so that your press toggles at the top of the sizing stroke, by use of Redding Competition shell holders, or a modified standard shell holder, that will make your results more uniform.

+1 on the Redding Competition Shell Holders, and camming over slightly with the press. I screw the die down until it contacts the ram, lower the ram, then screw the die down an additional 1/8 turn.

If you are getting varying results, I would determine which offset shell holder to use at the beginning of each sizing batch, and not assume what worked for previous batches / sessions is correct for the batch at hand. It doesn't explain why it varies, but it should result in the amount of sizing you are trying to achieve for that batch anyway.