Thanks for the input, everyone! Well, as I'm getting to know these guns a bit, it appears that the only one that's not been sporterized is the Kragicon. It's also the best shape out of all of them. It sounds like I should use all of them!

I took the A3 out to a range this weekend and really, REALLY like the way it shoots. I was hitting the target out to 300 yds with the iron sights! (for me and my eyes, that was pretty exciting) I'm looking forward to getting more confident with my shots with that one. In fact, I think I'll spend some range time with all of them this summer and just see which one really speaks to me as a hunting rifle.

The Krag is the one that's putting me in a dilemma. On the one hand, I see it as an amazing piece of history and it's in really nice shape, so I'm thinking it would be good to preserve it. On the other hand, I don't see myself ever selling it, so I might as well use it. And it feels really good in my hands, so I'm itching to test it. Hmmm.... At least I don't have to decide right away.

Thanks again for all your opinions. You've all been very helpful.