Copper versus lead versus lead free pellets in 22

Lead. Friend or Foe? Can copper pellets ever substitute lead pellets, or do we need to look at lead free pellets. I had the chance to test all three, Part I will be all about the 30m results, I look at optimal speed and the different groupings and observations. In Part II I will be stretching the legs out to 60m.

Latest tests:
H&N 25gr slugs optimal speed https://youtu.be/Aje6O-Vqbtk
H&N 27gr slugs optimal Speed https://youtu.be/VJqB0exFQq0
H&N 30gr slugs optimal speed https://youtu.be/6yUP7-G2Ons
Hunting pellets .22 at 60m test https://youtu.be/hnHHUNhuJh4
High Power pellet test .22 60m https://youtu.be/GUIwmFUpk7w
Light weight slug .22 https://youtu.be/7NXbMOCwp1g
Pest Control: Hunting pellet or normal pellet https://youtu.be/8s7Fm4K7P5U
.22 Hunting pellets optimal speed https://youtu.be/MCZjYM5Yolo
.22 Ultimate speed for accuracy https://youtu.be/M7TN0jcXdSU
JSB and AA test and conclusion 50m https://youtu.be/IJALAw6ApDA
H&N 50m accuracy tests sub 12ft.lb https://youtu.be/k1-5AjA3klY