Based on the Olin nail gun case the "RIMFIRE"17 WSM puts a 20gr bullet @ 3000 fps, 25 gr @ 2600 fps. With a NEW case head dia., Cost $17.50 per 50. Will this case survive ? your thoughts....... Mine are that at this price point (ammo) it would be more economical and tunable to load the 17 Hornet or 17 Fireball than purchase 1 time Rimfire rounds. Best of luck though to Win/Olin.