I have two .17 hornets, both CZ, one varmint and one American, and a .17 fireball on a Sako.

.17 hornet is a fun little hunting round, both mine are accurate, very cheap and easy to load, accurate to about 250m, and well matched to gopher's (squirrels) and rabbits, for small game,
I hand load for mine, 20gr, with 10-10.5 gr VV120, or 25gr HP with H335, rem 6.5 primers, The hornardy brass is giving good life, now at ten loads on sum, early brass wasn't good, but seams to be much improved now,
I shot several hundred, ground squirrels this year with mine, quite a thawk,

when you hit, and blows them apart,

its a lot less noisy than, a .223 or .204, as half the powder.
On a comparsion to the .17 fireball, the fireball has no real advantage, until the range gets past 200m, in my view, But as it will run the 25gr v-max at 3800 fps, has at least another 100m or range and much more energy,

I had two Remington fire balls and neither were anything special for accuracy, both of the CZ, .17 hornets are easy sub 1" at 100m, my varmint is giving me ten shot groups, at less that 1/2 with 20v-max, and 10.5 gr VV120.
I do not recommend the savage walking varmint for a rifle,

mine had lots of issues, poor feeding, scope mounts off center, fail to eject etc.
I think you will enjoy a .17 hornet, I am, fun little Cal, cheap to run, and considerable performance for a small package, My rim fires, haven't seen much use since I got mine.