Well you are in for an interesting ride that really isn't going to tell you a darned thing! You will get many "opinions" and I may as well lead the pack.
That said, many , many people tumble loaded ammunition to remove sizing lube, only needs about 15 minutes in clean walnut hull media. and is perfectly safe. It will not harm the powder and the risk of a primer ignition is remote and largely inconsequential if it happens. Your choice, your decision but in my experience of 50 years of reloading, perfectly safe.

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Old paratrooper in NC