I'm renovating my home built in 1981. Today I removed some plaster to reveal 3 rounds of Eley hollow point .22LR ammo sitting on the noggins. They've been sitting in non insulated walls all that time with freezing temperatures in the winter and baking through the summers.
What do you think the will do when fired? I'll let you know in a week or so. It will be interesting to see what 34 years of bad storage will do. It's a pity the builder didn't leave a full box to test.