[Alternative to standard 630]

Thanks all! Ceramic supply Chicago is my usual supplier who is out of stock. I did contact them about a possible substitute and they recommended 240 or 182 with no guarantees, of course. I’m going to try 240g and hope for the best!! Thanks everyone. 

[Alternative to standard 630]

I realize this problem is a result of my port planning, but…I am trying to fulfill a wholesale order and need standard white stoneware 630, but the supply store I typically use is out of stock. I have a deadline and need the clay asap. To fulfill the rest of order and make it consistent with prior glaze results I need that clay or something very similar. Does anyone have a recommendation for a very similar clay that may have similar glaze results? Or does anyone in Chicago area have just 25lbs of 630 to sell to me?