This is an awesome thread as I have both rifles in the "flesh".

I have not chronographed the 9.5 loads yet - just fired 3 shots at 25 meters to see if the open sights were usable with the bullets.

I find the recoil of the lighter 9.5X57MS a lot less than the heavier 9.3X62. I have a feeling that the 2250 fps claimed for the 270gr bullet in the 9.5X57MS is ambitious. The cartridge is a low pressure round & the 1910 MS rifle will not handle the same pressures as the Mauser 98.

I personally feel that the 9.3X62 is a lot more powerful on game out to 250 meters.

I hope to chronograph some 9.5X57MS loads in the next month or so & will let you know how I go.