A differant look at barrel life.

For chrome or nitrate 5.56 barrel. :thinking: :thinking:

Assume muzzle velocity in round numbers is 3000 fps. Since you started a 0 fps, your average, assuming constant acceleration, was 1,500 fps. For a 16" bbl or 1.33 ft, that gives a barrel residence time of 1.33/1500 = .0009 sec. Call it 1 millisecond.

20,000 rounds = 20 seconds of barrel life.

Some folk have way too much time on their hands. :Rolling: :Rolling:

 

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