[RC one]

Again gun “C” was by far the best, achieving more than 2,500 rounds. The M4A1 failed after 500 — a gap that can make a significant difference in battle.....

The Army’s statement in June 2013 justifying the cancellation said: “No competitor demonstrated a significant improvement in weapon reliability — measured by mean rounds fired between weapon stoppage.

But, but, But... direct gas impingement is perfectly reliable.

[Ken522]

I wonder which rifle performed better? Any clues?

[GeronL]

3,000 against 500 is not a significant improvement?