I do not have all the weights, but I have the #6 iron head weights. The JPX921 Hot Metal Pro is 258.1g. The Titleist T200 is 259.5g. Since both models progress in length throughout the set by .5 inches, it is safe to assume the head weight progression is probably 7 grams between heads, give or take a weight tolerance of +- 2 grams or so.
Britt Lindsey