Western Airguns Sidewinder twist rate

[MACTEN]

I've had the barrel out (easy of course) But didn't try to do a twist rate while cleaning it (.25)
Does anyone know the twist rate on these? Is so please share.
If not I'll pull it off and give the rate later this weekend.

 

[MACTEN]

I decided to just do it since it's a quick job. 1-23.5" is what I got.. Pretty slow twist rate. NSA 38.5 .254's shoot pretty good for me at 80 yards but I didn't have any other slugs that worked well that day. JSB 33.95 were great.