I am looking into converting 6.5 x 284 Nosler brass into 284 brass. Is there a place where I can find the proper procedure for doing this? Any advice would be appreciated.
Google "Sinclairs International" and type in the search window for a 7mm expander mandrel and die set.
Just remember to also purchase the correct type and apply sufficient lubrication to avoid collapsing the necks.
It is a pretty simple operation.
Hope this helps.
I just re-sized 100 pieces of Lapua 6.5-284 to straight 284 win by simply lubing them well and running them through my RCBS 284 Win sizing die. Worked great no problems what so ever. Good Luck