I had a Cooper Classic 57M in 17 HMR and it would easily shoot 5 shot 1/2" groups @ 100 yds on a calm day, a friend has a Cooper 57M Varminter in 17 HMR and his shoots the same. A sample of two but both are great.
The only reason I still do not have mine is because I am underwhelmed with the 17 HMR.
p.s. - I was just looking a Cabelas flyer that has boxes of 50 17 HMR ammo for $9.99
drover
Cliff's in Boise has a used Cooper 22-250 - test target is just one tiny little hole. Beautiful rifle in one of the best ever varmint calibers. (Just in case you have $1750 burning a hole in your pocket)