I've tried moly before and have decided that I really don't like it. I suggest you try breaking your barrel in properly by cleaning after ever shot for twenty rounds then every three shots until you hit fifty. If it still doesn't group then it may be time for a firelapping as a last resort before rebarreling. I've never seen or heard of anything that would shoot better with moly than without. Moly is just one of the latest and greatest fads that will go away soon.