In past I didn,t have " stuck case remover" or die,s .
So I drilled out flash hole to sidesof case and cut the brass down to the neck with a small wood chisel.
Wood chisels are made of softer steel than the sizeing die so it did not do any damage.
I checked , not a mark.
You will have resharpen chisel , the edge will break off.
Don,t try to reload winchester 270 brass .
The factory crimp makes them get stuck.
Fed and rem never a problem.