I was just thinking the same thing the other day. My neighbor went out and purchased a .17 HMR and outfitted it with every accessory known to man. When he brought it over to show me we went to CCI's website to compare the ballistics of it to it’s parent cartridge the .22 mag, and found that the .17 has a slightly flatter trajectory, but .22 mag has the down range energy. I had been considering the .17 HMR for my next rim fire until I read the numbers. It will be a .22 mag for me.