25% of 3 to 4 year olds
70% of 5 to 6 year olds
90% of 7 to 8 year olds
have the strength to pull 10 lb trigger - esp. if using two fingers.
I do recall some folks arguing that trigger pull can avoid a kid ND. I knew that was tested and ran across it today.
Archives of Pediatrics and Adolescent Medicine, 1995, 149, 1318 -22.
Naureckas, et al.
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