Mike,

I have been looking through Mallory's Krag Rifle reference book and on page 145 there is a picture of a Krag rifle attached to an ammunition testing machine at the Frankford Arsenal. The rifle is secured with a metal brace along the stock behind the trigger guard as well as at the point of the rear barrel band.

If you look at your carbine stock, there is an impression and slightly lightened color stock extending from right behind the trigger guard to right past the two filled holes.

My (pure) guess would be that those two holes are filled holes that may have been used to affix the carbine that this stock originally was used for (maybe your carbine) in a similar type machine for testing or fixed shooting purposes. There were some devices used for target shooting in a fixed rest .

Sound plausible?

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