Hi All,
I am getting ready to develop a load for my new hunting rifle. I just got 100 pieces of new Lapua brass (my first Lapua brass). Will my OCW test results with the new brass (prepped with Sinclair expander mandrel/die) be the same as when I load up the once-fired brass (after Lee collet neck sizing)? How much might I expect group sizes to shrink when I use fire-formed vs new Lapua brass? If this has been answered before, please excuse my weak google-fu. As always, thanks,
Adam
I am getting ready to develop a load for my new hunting rifle. I just got 100 pieces of new Lapua brass (my first Lapua brass). Will my OCW test results with the new brass (prepped with Sinclair expander mandrel/die) be the same as when I load up the once-fired brass (after Lee collet neck sizing)? How much might I expect group sizes to shrink when I use fire-formed vs new Lapua brass? If this has been answered before, please excuse my weak google-fu. As always, thanks,
Adam