1234,
Made a trial test using the Hornady 20 gr. v-max, cci 400 primer CFE Black and Hodgon data. Velocity was right up where Hodgon showed it in their data. Won't comment to accuracy as I was shooting a very poor shooting CZ 527 and it lived up to it's prior performance.
Also tried same powder in my 221 Fireball with 40 gr. Nos. B.T. Rem. case Fed. 205M primer. Velocity with top load was slightly over 3500.
The top Hodgon load gave a sticky bolt lift in my rifle. Half a grain lower produced excellent accuracy and still good velocity.
Have not had the time to try it in my other 17 Hornet but hope to soon.