At least half of me agrees with you entirely.

The other half is playing 'devil's advocate', here.

Imagine an 'all American' fellow flush with 'new money' from the burgeoning NYSE of about 1922 who has become convinced that the Savage 99 is the cat's pajamas and that the new (introduced 1920) .300 Savage is the best thing to ever have happened to metallic cartridges.

Then imagine this same fellow goes on a hunt with a buddy who says something to the effect of "so, you like rotary magazines, do you?" and hands him a Mannlicher Schoenauer stutzen to try.

Now our intrepid Jazz - ager is convinced that the MS is what a firearm should be and would buy one in an instant if it weren't for the fact that they were only available in the MS proprietary chamberings of 6.5X54, 8X56, 9X56, and 9.5X57, all of which are 'funny foreign things' to him.

Flush with cash, our newbie purchases an MS and has a top notch gunmaker convert it to his coveted .300 Savage to make his life complete. He also has a stock made with a bit more beef in the wrist and perhaps a shorter length of pull, as he's a stocky fellow himself, and of light curly maple as the stutzen reminded him of an old family heirloom Kentucky Rifle. That would account for all but the (gag) waffle butt pad and white line spacers.

Just two years later, our .300 fan could have purchased an M1924 'Sequoia' straight off the shelf in the 'U.S. Cartridge of 1906' (.30-'06), or, within a few more years, a 'High Velocity' MS in one of several non “Mannlicher traditional” chamberings.

The only thing I find truly bothersome about this particular 'conversion' is that it was done (during the 'white line spacer era') on a M1910. One can only hope there was an actual need for it to have been rebarrelled and restocked.

If it were one of the untold quantities of converted Y1903 known to the world - oh well. As highly regarded as original military arms are today, surplus arms were once cheap and plentiful and this conversion is far more tasteful than many that are out there.

Bottom line - I wouldn't do that to an M1910 but it was someone else's rifle and whatever made their liver quiver... .