Back in '97 when Clays was new and original, I thought it might be worth considering for 45ACP loads. Boy was I wrong! The stuff meters like crap and I suffered a squib load during a match at a Jackson Hole Gun Club as a result. It is just too coarse for throwers of pistol caliber, one would be better off leaving it to shotgun reloaders where powder throwers have much more volume and therefore a lot more forgiveness. If it goes pop, you stop!