Any depression in a time of rain. I have done it many times in exercises. Clearly a lot of people here have not spent any time in the Military and are commenting on things they simply don't know about. I think the OP's basic thoughts are correct. Military firearms in general have gotten better and more reliable over time. A lot more time is spent in testing modern military firearms in adverse conditions than ever was in the old days. OK the example test was very simplistic but it is pretty hard to cover all the testing done on modern firearms and the basic point is still valid.
Not sure how this thread descended into a discussion of the M16/AR15 and why it had troubles early on. The simple truth is whatever caused the trouble has been corrected and it has turned into a very good firearm. The only real issue remaining are the cartridges it uses and even that has been improved a lot. Personally if I was going into combat I would rather have a modern M16 series rifle than a Garand or M14. I have a collection of WW2 firearms that I really like but I wouldn't want to go into combat with them.
You said it far too politely ...




















































