I was asked to comment. It's important to note that when the Links say "civil war" they mean the English one, not our American civil war. So despite yours being found near some US civil war .69-caliber 3-groove Minie bullets, these presumably lead or lead-alloy mini-cups with two loops on the bottom's outside are not from the 1700s or 1800s. I'm about as sure of that as I can be, speaking as a 40+-year digger and dealer of relics from Rev War, 1812-War, and civil war sites here in Virginia.
I've also got to say, I doubt they are powder-measures. As the photo shows, their diameter is smaller than a US quarter-dollar coin. That means the loops on the bottom are quite tiny... and a lead loop so small and thin is fragile. It wouldn't stand up to much "rough service." Also, finding seven of them at one spot tends to support the doubt. A powder measure is something important enough in a gun's usefulness to not casually be discarded, especially not a group of them.
Lastly, the first ID-Link is the Colchester (British) Treasure Hunters website. If I recall correctly, our esteemed fellow What Is It? forum relic ID helper Crusader (in Britain) has said that the Colchester TH site's relic identifications are often untrustworthy.
Of course, I could be incorrect. But there seems to be sufficient reason for doubt about these little lead cups being a gunpowder-measure. I'd like to see some solid proof (not just a claim) for that identification. I wonder if they are shown at the UKDFDB (United Kingdom Detector Finds Database). Seems like they ought to be at the UKDFDB, if they are a powder-measure.