I see that SAMMI legitimized the 21 SHARP. It fires a 25 gr bullet at 1725 fps. The drawing shows a bullet diameter of .2105. Does this do anything the .17 HMR doesn't? Some hyper velocity .22 LR can do that. I can't see what the need for this new cartridge is.
https://saami.org/wp-content/uploads...2023-06-14.pdf