Well dern fellows, I have spent a bunch of money on tooling for barrel work. Has it paid off? I think it has been barely worth while. My findings have been as follows

On cheap guns= Big difference!

On mid range priced guns= yes worth the cost, some times, maybe?

On high end guns= keep your money in your pocket, they know what makes the barrel work!

If the bores are chromed lined= not with my tools!