I'm wondering what the best pellets to try in this gun are for target accuracy at 30 yards or less, not terminal ballistics on critters? Highest velocity doesn't matter, but I would like it to be decent so that I have less problems with drop compensation. Best diameter, brand, weight? One type Hatsan Vortex pellets are sometime very loose, one move forward enough to jam the cylinder. I had to push it back into the cylinder with the CF rod.