I have seen threads on other forums about making bullet jackets out of once fired cases. The equipment needed was always too expensive for me to just experiment. But I read about someone making 357 bullet jackets out of .380 cases. I have wanted to make some major caliber fast bullets. The first thing I did was to anneal the cases. I heated them to red hot. Then dropped them into a plastic jug of water. I dried them off and lubed them real good. I used my RCBS lube-a-matic II to size the cases down to .358. Then I used a lee push through sizer on my press to get down to .356. Then I gently used an 8mm mauser sizing die with the decapper removed. I gently pushed the cases up into the die to reach the neck part of the die. It put the round nose on the end of the brass. Then I took a lead 150 grain 8mm bullet and stuck it in the case. I heated it with a torch to melt the lead into the case. I just let the left over lead run over the top. Then I used a pointed tip on my lube-matic again to squeeze the final tip on the bullet. This is a pic of a couple finished bullets. They home made rounds weigh 175 grains. The round in the middle it a factory 140 grain bullet for comparison.