Okay i want to carry on with the pellets, at least for one more session.
So today after cleaning my rifle, i turned the REG down to get a bit slower speeds, and as luck would have it that was about 1/4 revolution on the Huma regulator and then it bottomed out.
This mean as far as i can see by my sekmet gauge that the minimum regulator pressure for the Huma regulator are 52 BAR, but paired with a 700 mm long barrel that still get lighter things going.
Shooting across my living room i got the following ( APROX ) speeds for the selection of light stuff i am currently bringing to the range.
10.5 grain crosman domed ultra magnum pellets : 940 fps ( down 30 fps from last session )
10.4 grain JTS dead center pellets : 950 FPS
13.43 grain JSB monster redesigns : 815 fps ( i assume way too slow, but i will try none the less )
13 grain Zan slugs : 835 fps ( never shot these this slow )
10.03 grain JSB KO / MK3 slugs : 935 fps ( i have not tried these in any rifle before so exiting )
10.34 grain JSB Heavy pellets : 925 fps
I do notice the 10.3 Heavy pellets are slower than heavier 10.4 dead centers and 10.5 ultra magnums, i can only assume it is a diameter thing.
I am actually also backed off quite a bit on the hammer on the Two, well at least that is my feeling it have no numerical indicators so i would have to take off folding stock and put a caliber on the adjusting nut and measure, but i am not that anal / not anal with that.
Moderated the Two shooting like this, sound like a blowpipe.
If i was not shooting tethered i am sure i would see my shot count go up drastically