| 摘要 |
PROBLEM TO BE SOLVED: To provide a spacer made of a resin releasing a bullet immediately after shooting while holding the bullet sufficiently without causing melt and deformation in a shooting device and wearing the sliding part with the bullet in the device at the time of shooting the bullets with different diameters by the shooting device having a specific caliber. SOLUTION: This spacer comprises a molded resin having an opening part (a) allowing a metal bullet to be inserted from one direction, a divided (b) extending from the opening part to the outer periphery, and a blocking part (c) located on the side opposite to the opening part, and the comprising resin is 66-nylon containing polyethylene of 5 weight % to 15 weight %.
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