buying a heavy bag ?

[greynotsoold]

I have a 120 lbs. water bag that is hanging from a chain very similar to the one that IamInuit has (except not with a c-clamp).

One thing I don't like about it is that I don't have to hit it very hard for it to start shaking (chain and all) and because of that, it gives me the false impression that I'm punching it hard when I'm really not. Is it because it's hung from a long chain (it's hung from the ceiling in the barn) that makes it do this?

I've only hit a water bag twice, and it was heavy on sore hands. That long chain will do it, make it shake like that. At least I think so, because I was in a gym in Texas and one in Riverside and they both had long chains hanging their bags and they shook funny.