I would see if anyone local to you owns a couple of the rifles in contention here and try to spend an afternoon sampling them side by side. I betcha you opt for the Krag. The '03 will be a close second, the 03A3 an also-ran. 03A3's may (or may not) have acceptable accuracy, but they are so crudely made as to abrogate that trait. ("Clear that stuff off your bench, kid, and get started on the next batch. Don'tcha know there's a war on?") I can't imagine anyone the likes of Owen, Griffin, et al devoting the extra pile of time it takes to make a silk purse out of the sow's ear crude 03A3. The same holds true today.
Since shooting it is your goal, opt for bore quality in whatever you get. Exterior deficiencies can be dealt with.
