I have a Beeman pellet seating tool. $20 bucks or so from Pyramid. But you can order plastic swizzle sticks with a ball-end for about $3.95 for a package of 10. They work great. Quickest way to check pellet skirts? Lay the pellet sideways on a flat, hard smooth surface (a small picture frame with glass works great) and roll the pellet. Blowing gently is usually all it takes to roll the pellet. Any wobble and the pellet is out of round. Also, it it rolls straight, the skirt is too narrow, if it rolls in an arc, the skirt is wider than the head of the pellet. The most accurate pellets are usually those with a skirt somewhat larger than the head of the pellet that roll with no perceptible wobble. If you really want to get "jiggy" with your pellet selection, then you can weigh individual pellets and shoot your groups only with pellets of exactly the same weight within 0.05 grains, and seat the pellets to exactly the same position in the breech with your pellet seat tool.