Im after a heavy bag that doesnt really move when i punch it.

[Douglas]

Yeah I agree Chris.

There is a fitness gym I go to and they've got a bag for kick boxing up. The thing is about 2 feet in diameter and must be 200lbs+

I use that in my last two weeks of training, just gunning into it an forcing it to swing, this really primes my "aggresive" punching for competition.

I fiond the "pear shaped bag" or tear drop bags, develop a habit of holding the hands a bit wqide and hooking more than is desirable. I just find that from training on it persona;lly, no observation or anything.

So I guess there is a bag over 120 lbs.

[donnydarkoIRL]

Yeah man...
In my gym we've got a few custom ones bout 200lbs or so....
Then we've got heaps of light ones and a few tear drops of differing weights.

Its all in the filling though as they're all a similar size.