Benji 392 and Ruger Air Hawk .177 first shots

I recently purchased a Ruger Air Hawk in .177(RWS 34 clone) for an open sighted garage gun. I stripped it down and deburred and polished it and gave a quick lube tune. I fired maybe 50 or so pellets before today. I just recieved the 392 and today was the first shots I have put thru it on paper. Both guns have the factory open sights and were shot at 15 yards off hand with a gentle variable breeze. I did give both bores the JB and Kroil treatment and then dry patched till spotless.

I am using boxed crosman premier 7.9's in the Ruger and though I did chrony this gun, I can't remember for sure what the results were. I do believe that 850-880fps is ballpark.
I got her sighted in and then shot a couple of 3 shot groups. I have not shot standard open sights for a very long time and was having trouble staying on my mark, so I settled in on 3 shot groups.





I am using JSB Jumbo RS 13.4gr'sout of the 392. Once again, 15 yards and all shots at 8 pumps. These are the first shots out of this gun, and I marked the trail of shots to get it centered and then its first 3 shot group.