The easiest way to get this achievement is in Prospector Stakeout. You get combos for hitting “groups” of targets
without missing or getting hit. The five groups are: 1) the bottles over the mine entrance, 2) the targets above and in the outhouse, 3) the bottles above the sleeping prospector, 4) the three targets on the birds in the top right of the screen, 5) the targets on the metal contraption on the right. If you can hit all of these without missing or getting shot, you’ll unlock the achievement.