I’ve probably swallowed more lead via bird shot than I will ever from shooting a bear. Digestion absorption of lead is a whole other thread, but its exponentially more harm full to breath brake dust, then the minute amount of lead you “might” absorb during the limited time it is in your digestive system.
May be you if you mix it with gum… you know since then it will stay in you gut for a month… or what ever the old wise tail was.
I degress but most ideal shot placement on bear leads away from the limited amount of meat on shoulders anyway. With that said front half of a partition acts like a cup and core bullet and send shards also, you might want to just move completely to mono if that’s your ultimate worry