So I just went out to Dragonmead brewery and picked up a half barrel keg of Final Absolution. I haven't lifted up a half barrel by myself in a few years, but the weight of this keg seemed pretty light to me. I was able to load it into the back seat of my SUV by myself and carrying it to my kegerator seemed unusually easy. Has anyone every had this experience, or heard of kegs not being filled to capacity? This keg was more than $300 at the end of the day and I just want to make sure that I'm not getting ripped off here. Thanks in advance!