The only time I've collapsed a shoulder is when I didn't have the neck lubed enough. I use Imperial and just scrape a little off my fingers and it has not happened since. Any excess gets cooked off when I anneal, followed by a tumble as the finishing step.
I put mine together this past winter and summer projects are interfering with the load development, but after I get things sorted out the plan is to get a bushing die to neck size which will eliminate the issue all together.
I put mine together this past winter and summer projects are interfering with the load development, but after I get things sorted out the plan is to get a bushing die to neck size which will eliminate the issue all together.
SI VIS PACEM, PARA BELLUM