I would like to trade a DC Lyman 311672 160 grain SIL-GC for a DC Lyman 311291 170 RN-GC. I like to experiment with different bullet molds in the .30 caliber and I'd like to try a slightly heavier bullet. The 311672 casts out at .311~.312 with linotype and has the new thicker style sprue plate. I took good care of it and its is rust free.