The Germans adopted their M1888 Commission Rifle instead of Mauser's design
so we weren't the only ones to pass it up. The stripper clip was such a new idea that nobody really understood how to use. The Krag's design was in keeping with our tatctical thinking of the time-uses the rifle as a single shot with the magazine kept in reserve to repel a charge. Likewise the idea that the single locking lug would not have the strength to handle more powerful charges didn't occur to them.