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Old January 10, 2013, 08:12 AM   #1
Bartholomew Roberts
Senior Member
Join Date: June 12, 2000
Location: Texas and Oklahoma area
Posts: 6,853
Excellent Report on AR15 wear & tear over 10k rounds

The authors of this report took 4 identical Bushmaster MOE rifles and fed them each a different brand of ammo for 10k rounds to note changes in wear and tear. The whole report is an excellent read; but some of the more interesting points to me were:

1. Russian ammo does cause additional wear - not so much from the steel cases but from the bimetal jackets. Barrels shot out roughly twice as fast and reliability worsened earlier.

2. An excellent example of how a midlength functions to take ammo that was marginal in a carbine and shoot it reliably from the midlength.

3. Those cheap components that look just like what comes in a Colt but cost half as much? They matter and affect reliability.

Great read and well worth your time.
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