Today I decided to pull bullets on loads of various ages! I pulled 8x57 loaded in 86, 22-250 from 78, 30-06 mil from 52, 243 from 99, 308 from 2014, and 338 from 2011. I pulled three of each caliber! The cases all looked great on the inside, with no signs of bonding! All were loads from my bench with the exception of the 30-06. I do tumble before loading but I don't do anything to the neck for hunting loads. Just size trim to length, deburr, and load! Maybe the necks are contaminated enough that bonding is not a problem! So what did I accomplish today, nothing except entertainment! To those with bonding issues, what was used to clean the necks? The bonding sounds like some sort of electrolysis! Am I off base here? This thread has really intrigued me because I had never heard of this weld bonding before this thread! I've been reloading since 1962 and it's never come up, in my circle of reloading friends! Of course none of my group are ammo scholars, just gun nuts!