Thread: Is this Powder or ??

Fired about 40 rounds through the 22WMR Brno 611 a week ago
Noticed it was a little sticky when cleaned barrel after that sighting (when my SUP was causing bullet mayhem hence so many shots)

Now I was putting the sling back on and could see all this Pollen looking crap looking into the Trigger guard area
If it is powder
Why Yellow and why so much
Or is it bad oil ??

Tasted it :-)
Has no burn/acid like or oil like taste - nothing actually
And no - not left it under an Old Man Pine for the week :-)

Not going to be easy to clean it all out either
Any suggestions on something to flush it with (me thinking Meths
Or needs a full strip down (wont be by me but)