I ‘ve bought BB hard cast handgun loads and 45-70 for bear defense. Not many of these will be shot so I didn’t feel the need to work up the loads myself. Barnes already sells the 168 ttsx 30-06 load for much less than BB. It’s not quite as fast but that’s mostly splitting hairs. Lots of other very good 30-06 loads are (normally) available. Most at much lower prices as well. Truthfully, about any 180 grain load would should work fine.