Notice

Welcome to our beautiful and beloved club. Please help us keep it that way by picking up after yourself and taking your trash home with you.

You carried it in, so you carry it out.

The good folks who volunteer their time to mow should not have to stop and pick up debris that could damage the mower or otherwise be thrown by the mower.

Eye&Skin

Flying fragments and shot are a danger to eyes and skin.

All shooters and spectators shall wear protection for eyes and ears.

Long sleeves, full length pants and face covering are recommended as well.

 

WHY? Want to know more? The following links to sources of info on eye and skin safety.


 

By firing pellets at pig eyes, the authors of one study determined that corneal perforation and globe rupture occurs 50% of the time at a velocity of 246 ft/s to 249 ft/s (75 m/s to 76 m/s) using a 0.18-inch (4.50 mm), 0.013 ounce (0.36 g) BB.1,17 Dimaio established skin penetration of human lower extremities results at 331 ft/s (101 m/s) for a 0.18-inch (4.57 mm), 0.01-ounce (0.54-g) pellet and 245 ft/s (75 m/s) for a 0.038-ounce (1.07 g), 0.22-inch (5.59 mm) pellet.28 Other reports place bone penetration around 350 ft/s (107 m/s).1 However, the damage depends on the kinetic energy and, therefore, the weight as well.

The lighter the projectile, the greater the velocity needed for penetration. Skin thickness and subcutaneous tissue will also affect the degree of penetration. Children tend to have thinner skin than adults and, therefore, a lower velocity will be needed to break the skin.1

Click here for source –>  https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6682219/

Power factor  = projectile speed in feet per second x projectile weight in grains.

5.6875 grains x 246 feet per second = power factor 1399 to perforate a pig eye 50% of the time.

4.375 grains x 331 feet per second = power factor 1448 to penetrate skin of human lower extremeties.

16.625 grains x 245 feet per second = power factor 4073 to penetrate skin of human lower extremeties.


 

What Happens If A BB Hits you?

The BB only needs to be traveling at 150 FPS for it to penetrate your skin. We’ve already ascertained that most BB guns can shoot at higher speeds than this. So, it can certainly penetrate your skin from a close range.

Click here for source –>    https://airgunhouse.com/how-dangerous-are-bb-guns/


  Airsoft speed vs. pain

(note: this source does not indicate projectile weight)

FPS Pain
100-200 fps Like a poke
200-250 fps A little
250-300 fps Welt in close distance
300-350 fps Hurt badly in 50 feet
350-400 fps Very Painful in 50 feet
450-500 fps Severe pain in 50 feet
500+ fps Penetrates skin in 50 feet

Click here for source –> https://airsofthow.com/how-much-does-airsoft-hurt/


Airsoft penetration test.

Click here for video –>  https://www.youtube.com/watch?v=40w4CQRpVlk

0.20g, 390 fps penetrated the least.

0.30g, 312 fps, penetrated more.

0.40g, 266 fps, penetrated the most.

 


https://en.wikipedia.org/wiki/Shot_(pellet)

Size Type Mass (gr) Diameter (in) Diameter (mm)
#7 Bird 1.50 grains 0.1 2.54
#7½ Bird/Clay 1.29 grains 0.095 2.41
#8 Bird/Clay 1.09 grains 0.09 2.29
#8½ Bird/Clay 0.97 grains 0.085 2.16
#9 Bird/Clay 0.75 grains 0.08 2.03

 


https://rangeservices.nra.org/media/4074/shotshell-ballistics.pdf

#9 lead shot can travel 193 to 196 yards when fired at elevating angle of 18 to 30 degrees with an impact velocity of 65 to 70 feet per second.

#8 lead shot can travel 211 to 214 yards when fired at elevating angle of 18 to 30 degrees with an impact velocity of 69 to 74 feet per second.

#7-1/2 lead shot can travel 220 to 223 yards when fired at elevating angle of 18 to 28 degrees with an impact velocity of 70 to 75 feet per second.

Power factor  = projectile speed in feet per second x projectile weight in grains.

#9 shot power factor at end of travel = 48.75 to 52.5

#7-1/2 shot power factor at end of travel = 90.3 to 96.75