I would load them with trailboss for dialing in the sights. Figure out where the bullet base will be in the case, fill with TB to that level, weigh that charge and start with 70% of that weight. You can work up to filling clear to the base of the bullet but Do Not compress trailboss.
Where in the panhandle are you? We may be neighbors😁

the consolidation of the states into one vast republic, sure to be aggressive abroad and despotic at home, will be the certain precursor of that ruin which has overwhelmed all those that have preceded. Robert E Lee
~Molɔ̀ːn Labé Skýla~