lightman
Member
I use a uniforming tool from Sinclair to make the bottom of the primer pocket flat and then the same tool to clean them. I have found that the brass can flow into the primer pocket upon firing and I sometimes get a small amount of brass each time I clean them.
I don't see any improvement in group size by uniforming the primer pocket but it makes seating the primer easier and cuts down on misfires. And its a 5 second job when the tool is chucked up in a drill.
I don't see any improvement in group size by uniforming the primer pocket but it makes seating the primer easier and cuts down on misfires. And its a 5 second job when the tool is chucked up in a drill.