FX Streamline pellet clipping?

Funshine: I am using JSB 18s, AOA cleans the barrel before shipping, I cleaned the barrel also but I place my targets on a wood poster so I can not tell if pellets are damaged. 



Gaberossi: I have taken the moderator apart and haven’t found anything. 



Tkerrigan: I am shooting the gun in medium and low power. I don’t believe it’s oil, the rifle is about 2 weeks old and there was no Smokey smell until I added the moderator to the end. 

Thank you for the responses, I am puzzled to what it could be.. 
 
Well, JSB's should not be the issue. When I received my Streamline from AOA, I cleaned it and it was dirty according to the first cloth that I pulled through with some Ballistol. My FX was no different. I can tell you that sometimes if some lubricant/oil or grease get with the pellet you'll have smell/smoke. I had that effect with my Springers. Maybe, you just need to fire more pellets through it and see if it continues to do that. Try shooting a few pellets without the Moderator. Is it the FX Moderator? Good Luck.