This video demonstrates the differences in the deflection when 3lbs of force is applied to either the handguard or the barrel while the upper receiver is fixed in the 2300lb milling machine with a dial indicator on the table to measure the actual deflection. The barrel in the test is an M4 contour CMMG 22lr barrel. The handguard in the test is a Nordic Components small diameter freefloat handguard.
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Is this Randall? Do you have a recommendation for which handguard deflects the least?
That is equal to 3.89 inches at 600 yards (NATO 5.56mm effective range).
arctan(0.004 inches/22 inches)=0.00018 radians
(0.00018 radians)(600 yards)(3 ft/yard)*(12 inches/ft) = 3.89 inches
What are we supposed to conclude from this?
would you say it's unwise to use BUIS on a freefloat handguard if it's able to deflect?