I formed the 5 cases shown above, by shortening 303 brass, and triple annealing the body and neck area to make them dead soft. I then coated them with Corbin bullet swage lube, and gently tapped them into the rifle's chamber to reduce them to a press-fit size of the chamber. Finally I sanded each case by spinning them in the lathe, until they were reduced to the point where they would easily slip in-and-out of the rifle's chamber. I loaded these 5 cartridges with 13g 4227 and a 90g 32 cal. bullet. Expected velocity is 1700 fps. Test target to follow. I just ordered a set of 8x38R Tesching dies from C&H. I hope these will work.