The down side is the length. It will require a hornet length action (The HMR uses a 22 rim fire Mag
And if you have a hornet length action you might as well go with the Hornet or the K Hornet.
The K hornet will push a 40 grain Bullet (Twice as much weight and a .200 bc) 3050 ft/sec+
and has less wind deflection and drop.
I love the 17 HMR and wonder why if they were going to 1 up the HMR they did not keep the COAL
the same, and just fatten the case for more case capacity to acheave the faster velocity.
I can push the 30 grain bullet 3346 ft/sec in my K hornet and get 2600 ft/sec from my custom 17
The 17 Hornet can push a 20 grain .177 cal bullet 3650 ft/sec and can be reloaded. this cartrige
will smoke the 17 WSM and the 17 K hornet can exceed 3800 ft/sec with the same bullet.
So I see no real advantage for the shooter and you have to buy all of the 17 WSM ammo. (Good
for the ammo maker ).
This is just my opinion as to the advantage/disadvantage of the cartrige.
J E CUSTOM
I was thinkin pretty much the same thing. I love my HMR & wouldn't mind having a 17Hornet either.... I have a feeling this particular cartridge may sink faster than the Titanic. No advantage anywhere, that I can see.
"I, however, view ethics as an individual decision. My ethics are mine - and I won't explain or justify them to anyone else. I seek nobody's approval, just that of my own conscience. "
Havent seen a 17 WSM rifle and I expect it will take some time befor we do. I read about the 17 Hornady Hornet about a year ago and am still looking for a CZ or Ruger rifle one of which I will get. At times I dont feel like reloading ammo so the 17 WSM cartridge looks good to me , that is if I can find an accurate rifle that shoots the round. Could be a fine 225- 250 yard prairie dog shooting rifle.