The 219 Zipper is almost identical to the 22 HP in appearance, but is designed for standard 0.224 bullets.
As long as you throat your 22 Savage HP for 224 dia. bullets and use a proper sizing die to get the necessary neck pressure on the 224 bullet it should work fine. That being said the Zipper is a more logical answer because everything will fit from the get go without the cost of custom dies and reamers.
Good Luck on your project Should be interesting which ever way you go, Keep us informed
I think the 219 Zipper wins! it does have almost the identical case capacity as the 22 Sav HP, and yes, rather than mucking about with the neck issues, would be better.
I have two choices for the 219 Zipper:
and
Going with the Improved would help with case life I am sure.
I could buy 219 Zipper brass for $1.85 a piece, and spend $128 on FL Sizer and a Seater dies.
I can make my own from 30-30 Win for 30c a piece.
Buying 3 forming dies, plus a FL sizer and Seater, to make my own brass from 30-30 Win, costs $350 or less.
Making my own brass would save $1.55 a piece. The difference in hardware cost between buying and making is $220.
At a savings of $1.55 a piece to make my own, payback for the additional forming harware investment is 142 cases! So making the extra investment in the forming hardware is a no-brainer bargain to me. Then fire-form them into 219 Zipper Improved.