Look at a burn rate chart for the stuff on either side of 335, then find corresponding loads in load manuals. Then find a sale on one of the powders that will work. Test it, and if it works well for you, buy a BUNCH of it. I am working my way through 'several' jugs of surplus 2230C (apparently no longer available) with great success (and greatly reduced cost). Surplus powders can be a great savings.