I have heard about different small calibers thru the years like 22 hornet and a couple others and they are popular for about 5 or 10 years than kinda disappear.I think one was a 17fireball or something. I am 67 years old and read quite a few gun magazines over the years and saw a few one shot wonder calibers.I just bought a ruger american in 22mag,and am super impressed with accuracy.Love that rifle for sneaking around farm ditches and hvy woods , put a burris drop tine scope on it and so far very happy with it.BUUT I kinda been nosing around 17HMR info.and thinking about getting one.I am happy about its speed record but wondering about punch on a coyote.Some people say its a coyote killer at 200 yards, I dont know wether to believe them or not, its a tiny pill.Do you think this round will stay around a long time or fizzle out ? If any of you guys hunt yotes with this round , give me your opinion on it please.AND NO, I am NOT selling my ruger american in 22mag.