Aquí se hizo un estudio sobre bolas Excel bio donde se vio que son más gruesas de lo habitual:
Average Weight: 0.1879g
Standard Deviation in Weight: 0.0179g
Average Diameter:
5.86mmStandard Deviation in Diameter:
0.015mmAverage Muzzle Velocity: 439.23 fps
Standard Deviation in Muzzle Velocity: 1.818 fps
Standard Deviation in Roundness Test:
2.17cmSurface: smooth with visible injection nipple
Color: black
Bag Count: 1700
Imagino que este tipo de bolas pueden dar problemas en cañones de 6.00.
http://www.airsoftmechanics.com/home/content/view/14/26/1/3/Las bioval:
rand: Bioval/Biotech BB 0.20g Brown
Average Weight: 0.2100g
Standard Deviation in Weight: 0.0107g
Average Diameter:
5.96mmStandard Deviation in Diameter:
0.020mmAverage Muzzle Velocity: 436.51 fps
Standard Deviation in Muzzle Velocity: 3.341 fps
Standard Deviation in Roundness Test:
2.86cmSurface: smooth with visible injection nipple and barely visible casting ridge
Color: beige/brown
http://www.airsoftmechanics.com/home/content/view/14/26/1/5/Ultimate BB 0.20g
Average Weight: 0.1938g
Standard Deviation in Weight: 0.0175g
Average Diameter:
5.97mmStandard Deviation in Diameter:
0.007mmAverage Muzzle Velocity: 453.11 fps
Standard Deviation in Muzzle Velocity: 2.646 fps
Standard Deviation in Roundness Test:
3.96cmSurface: semi rough with minor visible blemishes
Color: off white with dark specks
En esfericidad ganaron las bioval por bastante:
http://www.airsoftmechanics.com/home/content/view/14/26/1/7/