Oddest thing happened with my most recent casting session. I have a Parker hale musketoon, a Lyman wad cutter 575-494 mold, and a huge supply of old lead water line ive been using for balls and bullets. I’ve shot 100+ of these wad cutters out of the musketoon. A few days ago I wanted to shoot it some and realized I was out of bullets. I fired up the melting pot and made about 25. Since I was in a hurry to shoot I dropped the cast bullets into a pot of water to cool them quickly. I then lubed them and tried to do some shooting. Oddly the water cooled bullets wouldn’t fit the bore of the musketoon. It’s like the water cooling made them a tad bit larger. All the other ones I’ve made prior that air dried were a nice tight thumb push fit. Same lead, same mold, same casting temp. Did I cause a chemical reaction by hastening the cooling process that caused the lead to expand, or water cooling it keep it from constricting by air drying?