I cast it up some Lee 200 grain .358 boolits two years ago and sized in a lee .358 sizer. When I measured my bullets after sizing the same day they did measure .358. Well it’s been two years and I pulled the same boolits out and measured them it seems most are .359” to .3595” and a few are .360 to .361! The alloy is used was 50/50 mix of ACCOWW and pure lead flooring with 2% pewter added. The BH was 10.5. I’m guessing to keep consistency I need to resize all these before loading them up. Any idea why they grew so much and at inconsistent sizes? I thought lead actually shrunk in size after so much time?