I was messing with some brass today, and I ran a piece of 30-06 brass through a .270 sizing die. The result seemed to be a decent looking .270 case, but the neck was considerably shorter than the suggested trim to legth. My question is, would it be okay to resize brass like this, and to shoot it from a .270? Is there a way to lengthen the cases? Will these be accurate if I shoot them? I'm sure someone has done this before.