Cinchy
Well-Known Member
I tumbled 50 rounds of 2 times fired Nosler brass, & as my habit I washed the dust off them in the sink with soap & water. Then I turned them upside down in a loading block to dry. They sat in the block for a couple weeks, & when I got ready to size them, I noticed they had some corrosion inside the case necks? I used a neck brush & cleaned them all up to remove it. Then I lubed with 1 shot & started sizing like usual, but felt nothing out of the ordinary? After running thru most of the cases I happened to notice a crack in the neck of 1 of them? I started inspecting them & probably 75% of them has similar cracks! I`m thinking I didn't get all the soap rinsed out of them and they sat in the moisture too long drying out, & perhaps residue from soap caused them to corrode ? It was as if the necks were made brittle by corrosion? I have always cleaned like this but usually work the brass the next day after they dry. It was Dawn dish soap I used to wash them by the way, any thoughts or ideas?