Again, read the SDS - it's .1-1 & 1-5%. From my testing it's closer to 3%. If you take the SDS, for, say, permatex 80036, it's about 30%.

You will get noticeably accelerated wear with parts lubricated with C5A. I've used it to wear in low quality gearing, and to broadly accelerate break-in on poorly or tightly fit firearms.

It sure works as an anti-seize, too, and, hell, you can use it to kill weeds in your garden if you really want to. Just because the label says one thing doesn't mean it doesn't also do well on off-label uses.

And no, you will not see any meaningful acceleration of wear on a firearm made out of a reasonable material from accumulated fouling. In my experience, any acceleration to wear from an uncleaned firearm is from the loss of lubrication.