I acquired a 50 Beowulf upper today from an extremely generous member and would like to experiment with some improvised low power hand loads. I don't have any dies and probably won't be able to get my hands any for a little while. The member also gave me a box of ammo that has some loaded rounds and a few fired cases. I was able to insert a fired case back into the chamber of the barrel and get the bcg back into full battery. Any tips on getting neck tension? I want to use some of my muzzle loading projectiles for these low power loads and maybe try a couple of shot loads too.