Rifle Number 1:
.177 Beeman R-9 "Goldfinger" with Bushnell Banner 4-12 A.O. scope in medium Beeman @pc mounts.
This rifle will shoot 5 CPL's, Copperheads, Exacts, or Beeman FTS pellets inside a 1" circle at 50 yards.
Rifle Number 2:
.20 Beeman R-9, de-burred and lube-tuned by yours truly, with a Wal Mart Bushnell Sportsman 4-12 A.O. scope in 2pc medium SportsMatch ring mounts.
It will also put 5 pellets inside a 1" circle at 50 yards when using Beeman FTS pellets.
The .20 is just slightly tighter grouping, overall, than the .177 is. I'm sure that caliber has nothing to do with it and that a different pair of these rifles might have the .177 trumping the .20 in the precision department.
-JP