Being introduced in the “new” M70 in 1964 didnt help. And Remington bringing out the 22-250 shortly thereafter didn’t help much, either.
Bingo.
Winchester resurrected the .219 Zipper Improved, gave it a stronger case & "semi-rim" and called it the .225. Browning factory chambered their Sako action rifles for the wildcat .22-250 at the same time and Remington legitimized the .22-250 with factory rifles and ammo. IF Remington sunk that much money in R&D they were foolish, good .22-250 loading data had been around for decades ....
