Get a pin that ready for the dumpter (fire, etc)
and cut it in half length-wise and made cut-out target using thin card stock.
You goal it to place a shot within the vertical lines and in the lower section of the pin before the outline curves up, start at the base of the pin and up thru the top.
Any hits inside that area will be NORMALLY a straight push away from you of the table, those outside will be your fall flat spinners and need extra hits to clear the table.
Use a duplicate of carry ammo for handling the recoil. ENJOY!