Winchester Partition Gold replacement

I used to fire Winchestter Partition Gold 12 guage 1850fps 3″ 395grain. It has become hard to find however. I’m looking for an alternative.

I use hornady SST slugs and have had good luck with them. Finding 12g slugs has been easy but 20g is another story. Those have been tough to come by regularly. I use them in multiple different guns and they seem to group well enough for deer hunting so no need to have different slugs for every gun which makes things easier.