I think the .17HMR would be a better choice all around, I have both and the 17HMR is better by far. The .22 bullet travels about 900'-1300' FPS and the .17HMR travels at 2200'- 2500 FEET PER SECOND.
NO! This will damage your rifle. ABSOLUTELY NOT!!!!This might also damage the shooter...A 17HMR's bullet is .172 diameter a .22 Mag is .224,and the difference in cases means theres gonna be some rupturing,damaging the gun and the shooter....DONT DO IT!!!!
17 caliber rimfire
You have asked a question that can't be answered. There is no such thing as an "average" bullet. Define what you mean by "average bullet" and maybe someone can help you.
Shoot in a heavy fog
There are dozens of models of rifles and a few revolvers that fire the .17 HMR cartridge. Rifles in that caliber are made by Remington, Winchester, Marlin, Mossberg, Savage, Taurus and others.
No not that I am aware of.
becuse they are in heavy metal band
Slug could be a snail like animal. It could also mean one heavy bullet.
200+ ft. lbs at the muzzle
For a 9x19 Parabellum, usually 95 to 150 grains.