How long will my handloads last, if stored in a cool dry place? How long will my handloads last, if stored in a cool dry place? September 4, 2019 Michelle Gallagher When stored in such an environment, cartridges kept in sealed containers will last the best part of a lifetime. 0 Newer How do I know when my barrel is clean? View all posts Older Can I use cast bullet loads for jacketed bullets?