cdagnese:  You have your Lee-Enfield nomenclature wrong.  I believe you are referring to the Short Magazine Lee-Enfield Mark III (later called the Number 1 Rifle, Mark III) and the Number 4 Rifle, Mark I.  You are correct in pointing out some inherent 'engineering' weaknesses of the Lee-Enfield design.  The U.S. Krag also has some 'flaws':  single locking lug and inherently fragile stock.  I would agree with your view that most Krags seem to be a tad more accurate than Lee-Enfield rifles.  (I personally have found my Krags to be gentler on brass).  But, there are some Lee-Enfield Rifles that are fine performers and the Brits were certainly able to tune them up for fine match performance.  In all fairness, accuracy expectations should be about the same for a L-E or Krag.  (My Remington 1903-A3 beats them both)!  If these guys were really comparing Apples and Apples, they would have used earlier Lee-Enfield infantry or cavalry models that did not have 'charger-loading' capability.  After 10 rounds, the Krag would have had the loading advantage.