I would like to suggest a trick I've used for years... shake (to mix well) Breakfree CLP & wipe down the gun, chamber & barrel before shooting (everything except the grips). Do not over do, wipe down with a dry patch after. You only want to leave a film. Any fouling, dirt or debris will be on top of the film & a lot will wipe off in the intial stage of cleaning.

I used to make & sell machine cast bullets. The wax lube is really very good. I've heard of some using the spray lube, right over the whole lubed bullet before reloading, of course. I've not tried it myself but if I was shooting a lot, it would be interesting to compare.

I shoot lead in my S&W 39/ 645 autos just fine.
Russ