I was tuning around on 10 meters AM about an hour ago and heard Tim WA1HLR in QSO with Chuck K1KW on 29031 kHz as I recall. Chuck is about 250 miles away and Tim is about 400 miles away.
Tim was just barely readable and Chuck was stronger and R5. The interesting thing was that I could hear Chuck with quite an echo. I assume this was reception of short path and long path both. Chuck was switching between low angle and higher angle radiation patterns. The echo was apparent only on the low angle radiation.
I was listening to the same QSO. You were most likely hearing Chuck backscatter from 2 directions.
This does not happen too often.
Long path would be quite a feat.
Tim used to be easy copy on 10 backscatter when he had the 4-1000 rig. I can always tell it's him now but cannot make out the words.
There's no propagation scenario where I cannot hear Chuck.