Originally Posted by RED MIST
When you form brass for the 260 Remington using 243 lapua brass, do you need to turn the necks? I have heard that you can get a doughnut if you do not.
Also having a hard time finding load data for 260 using reloader 17.
You don't have to turn the necks on 243 because it is smaller than the 260 (6.5).
It is always a good idea to just clean up the necks just to true them ,but the lapua brass is
almost perfect so it doesn't need it.
I use 308 Lapua brass for my 7/08 and and turn just enough to clean it up and make it
uniform before sizing it to 7/08.(When sizing down neck wall thickness may thicken.But sizing up you will have no problem.
J E CUSTOM