Dave,
When I made that statement about the Super Streak 1500 being a Gamo 1250 knockoff, I was just passing along what Rich Imhoff "Rich of Mich" told me earlier today. Dave, some of these guys have been doing this for decades so, I listen, when they are willing to share any information.
By the way I chronographed my SS a couple of days ago, now that it has been at least partly broken in. I had to get some light pellets also. Crosman 14.5gr Field Targets 890fps, Beeman Lazer 14.0gr 970fps, Beeman Silver Eagles 12.0gr 1080fps and Gamo Rapters 12.3gr 1050fps.
When I am checking velocities I always shoot at targets to get an idea of the accuracy at the same time. The Lazers were the best of the light led pellets with what I would call, reasonable
field accuracy.
My little collection is: Beeman Webley C1, HW80 imported from Canada with Turbo Spring also from Canada, Beeman Diana Model 10 Match airpistol, Crosman Skannaker Match airpistol my first rechargable CO2 gun, Gamo Big Cat 1200 which got me back into airguns,Benjamin SS1500,Benjamin Discovery my first high pressure PCP. Next possibly a Gamo Hunter Extreme.
Merry Christmas