Hyper vel .224" wildcat
Tyler -
I have always held, that the 22-243 and similar high-capacity .224s are TOO big ( too inefficient ).
I looked at many possbile .224" hyper-velocity cases over the years.
Back in 1975, I designed my own .224" wildcat.
It was the .35Rem necked down to .224" cal, w/ a mild 26* shoulder angle.
I even wrote P.O. Ackley about my wildcat, and got a nice letter back in response. HE said that it should make " a good case ".
With a 24" 1-14 5-groove SS Hart barrel, I got 3,690fps from 55gr SX Hornady over 41.2gr WW760, or 42.6gr VV160 ( both over Fed LR Magnum Match
primer ).
Same case chambered in a 28" K & P 1-8 5-groove stainless got me 3,420fps ( accuracy load ) w/ a 75gr "A"-Max over 40.5gr AA3100 and Fed LR match primer.
This was an efficient case, matching 22-250AI velocities w/ less powder.
I shot the 1-14 twist barrel for over 25yr, before I ever had a bullet keyhole. That was over 3,400rnds through the barrel.
I'm convinced a larger capcioty .224" cal case woudlnot last as long, or be more accurate. Any higher velocites one might see over the 22-35 wildcat I designed would only come at the expense of burning excess powder qunatities; and ultimately would lower obtainable barrel life.
I have gone on to use of a new 6mm wildcat, of my oin design.
As a result, my 22-35 case forming and reload dies; and chamebr & re-size remaers are for sale. I also have the opld 1-14 take-off barrel, which is used to fire form cases ( saves life on the " good " barrel )
Best of luck in your endeavors.
Regards,
.357Mag