I got a 1 pound can of Universal clays a while back. This is my first foray into clays powder; i usually shoot 231. I see a lot of reference to 'Clays' in the reloading area. Does this terminology refer to Clays or Universal Clays or International Clays? Which of the 3 is the most popular for 45 with lead bullets (200 or 230 grain)? The Hodgdon site only has data for jacketed; what is the rule of thumb when comparing bullet weight of jacketed to the same in lead regarding charges? Thanks.