The bullets are Beartooth wfn gas checked. Have been told it is the same bullet that double tap loads and longshot is the powder that is used. Double tap will not confirm or deny.
That's much better info.
In my experience, AA9 is your best bet for accuracy and velocity with that bullet design. What I'm using is not that exact bullet, but very similar; 13.4gr of AA9 gives me 1350 fps from a 6" G20L (aftermarket long slide from back before the G40 came out).
I don't have a comparable Longshot load, sorry.
