I'm going to guess that chain isn't going to last too long. I quit using swivels and those spring loaded clips because they wouldn't hold up. Frank's method of using the two cinder blocks is the way to go on these roll barrels.
Yeah I had to beef up the chains. too, still have a couple of weak ones but will change them out when I get time. My barrels are getting 2+ years old too and so will get brittle sitting in the sun, I have replacements...LOL