Noticed after running a fair amount of this through various HKs, I am getting pretty extreme leading. Bullet is FMJ, but obviously has an exposed lead base. After as little as 200 rds, I am getting visible chuncks of lead deposited in the barrel. Ammo is also extremely dirty and leaves unburnt powder residue behind. Functions fine and accuracy is mostly there. Never experienced this much leading with any other factory FMJ. Perhaps a softer lead alloy is being used? Oddly the SB9B (124) didn't catch my eye with this issue. I recall it being extremely clean. Anyone else experience this?