[Shooting FMJ | Will it remove lead fouling?]

I've had Blue Bullets scrub my barrel very clean after I got leading with SNS bullets, but I haven't tried them to clean up heavy lead. 

Blue bullets scrape out the lead pretty well out of my pistols as well.

[Shooting FMJ | Will it remove lead fouling?]

For the most part yes it will. You might notice some deep in the grooves between the rifling that even shooting a fair amount of FMJ will probably never get out though.

[Holosun 510C]

On 6/25/2019 at 4:27 PM, Norther said:

I noticed this right away, first day out. Annoyingly obvious. I haven’t noticed it with any of my other dots. Reserving judgement though, still pretty happy with it. 

I have two and they are both doing it, it's really distracting.  I think I'm going to sell mine and buy a vortex huey or just get an eotech 512.  

[Coated bullets]

It's likely not Titegroup causing the smoke.  I loaded up all kinds of different bullets with TG and only the hi-tek coated lead bullets smoke.  The FMJs, plated, and blue bullets (SNS coating I believe?) do not smoke through my PCC or pistols.