Did I hear my name?
Insanity, it's nice to see that you got to fling some pellets down range, and nice tests!
This will really help you figure out what pellets your gun likes and dislikes..
I've been doing the same thing over the past few months with a few different rifles..
I'm not familiar with your exact model rifle, but I checked it out, reviewed the specs,
and it reminds me of a Tech Force springer that I used to have [and really enjoy]
It was also a break barrel and shot around 1,000-ish fps.
Here's a tip.. higher speed is not always a good thing for accuracy and/or grouping..
Since these rifles are 'set to a specific power', a nice way to slow down the pellets
is to use heavier grains/weights.
I noticed a HUGE difference when going with heavier pellets..
I had a high fps setup, and with the lighter 14, 16, grain pellets,
after 10 shots at a single bullseye, the target would look like I hit it with a shotgun w/ bird-shot..
No consistency or predictability - pellets poi was where ever they ended up..
I was at my wits end.. Then tried pellets in the 18 and 21 grain range..
The patterns tightened right up! No more wild strays, more consistent / predictable, etc..
My Nova Freedom shoots well with JSP 18.13 grain pellets on High [900fps]
On the flip side, when it is on the Low power [700fps, it Loves Crosman 14g Hollow Points]
My Puncher Breaker - Same deal. It isn't pellet picky at all, but will just stack the Crosman HPs
over and over and over again until' I end up with a giant globs of lead.. haha
Same with the Hatsan Gladius, etc..
I've been shooting Crossman Premiers and JSB for years..
Now, I'm trying to H&N pellets, and IMO, they are nicer and shoot much better for me..
So give that a whirl... Use some heavier pellets - 18 grain to say 21 grain like I'm doing,
and see if your groups tighten up. I really think that they should, and you'll be surprised.
**The running squirrel shot** That was done with the Nova Freedom at just under full pressure
so probably about 180 bar, it was set on High - 900 ish fps, and I was using JSB 18.13 grain
Now that it's winter, and I'm stuck shooting in the house,
I try to set all rifles to the lowest power settings and go with the Crosman Premiers..
500 count tins at WallyWorld for like $7.00, so I grab a tin or two every time I'm there..
Cheap and Extremely accurate 90% of the time..
The other 10% would be trying to use them in a rifle that just shoots too fast..
Same deal - it sprays the things all over the place, so I'm stuck using heavier/more expensive rounds.
I hope that helps a bit!
Keep at it, Have fun, And best of luck!
Sam -