The Lee powder thru expander die does a poor job of expanding(flaring) the neck, probably needed even with jacketed bullets-bullets go crooked and bulge one side of neck. The lyman M-die(the one for 32acp will work) opens neck straight to exact friction fit with good, uniform flare so bullets seat straight. Then careful mild crimping shouldn't be a problem(mild because few bullets have a cannelure or crimp groove).