You mentioned you had just received some Ecotungsten (otherwise known as Nice Shot)to use in reloads. You can load it in place of lead but you must factor in that using Nice Shot in any lead load recipe will increase pressure by 1500 psi. This increase in pressure info is from the manufacturer.

There is one published short ten load using Nice Shot/Ecotungsten I have found, it is here:

http://randywakeman.com/Nice_Shot_Reloading_Data_10_Gauge.htm

Last winter I scoured the internet for hours looking for short ten reloading info, I also bought a bunch of old reloading manauls and put everything I could find into a single spreadsheet which also includes the loads from Sherman Bell. You can find that info here:

http://www.doublegunshop.com/forums/ubbthreads.php?ubb=showflat&Number=276661&page=1