Next he put the ramrod back in its place against the gun barrel.
next
(次に)
[副]
immediately after the time being considered
back
(元の場所)
[副]
to or toward the place or time from which a person or thing came
次に、槊杖を銃身に沿って元の場所に戻した。
Then taking a box of caps from his pocket, he raised the hammer of the gun and slipped one of the little bright caps over the hollow pin that was under the hammer.
pocket
(ポケット)
[名]
a small bag sewn into or on clothing so as to form part of it, used for carrying small articles
raise
(上げる)
[動]
to move something to a higher position
hammer
(撃鉄)
[名]
a tool with a heavy metal head mounted at right angles at the end of a handle, used to break things apart or to drive nails into wood
slip
(滑り込ませる)
[動]
move or cause to move smoothly and quickly with little effort
hollow
(中空)
[形]
having a hole or empty space inside
pin
(ピン)
[名]
a thin, sharp piece of metal with a pointed end and a round head, used especially for fastening pieces of cloth together
それから、ポケットから雷管の箱を取り出し、銃の撃鉄を上げて、撃鉄の下にある中空のピンに小さな明るい雷管の1つを滑り込ませた。