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. Author manuscript; available in PMC: 2015 Oct 23.
Published in final edited form as: Int J Audiol. 2013 Feb;52(0 1):S9–19. doi: 10.3109/14992027.2012.745650

Table 3.

Maximum permissible unprotected exposures near the sound source for .22 and .32 caliber pistols.

Pistol Maximum permissible unprotected exposures (MPE) at different measurement positions
5 cm from shooter’s ear Chamber: 10 cm to side Muzzle: 10 cm to side Muzzle +1.5m
Kimar .22 starter pistol 5 0 0 34
K-22 revolver w/blanks 295 34 3 23
K-22 revolver w/CCI LR 30 0 1 30
K-22 revolver w/shorts 67 1 2 37
.32 starter pistol 15 0 0 23
.32 revolver w/blanks 63 6 1 10
.32 revolver w/W325 34 3 0 18