a pistol of small caliber的用法和样例：
- He snot a pistol of me. I jumped back in time to avoid being shot.
- A trajectory correction scheme of small caliber projectile was brought forward.
- The owner took a pistol out of his pocket and pointed it at the thief.
- As to theproblem of small caliber artillery penetrating steel target,the experiments and finite element analysis are done,and the results are compared.
- He whipped up a pistol and shot at the black bear.