I have read on a couple other sites that Winchester has came out with a NEW! Rimfire round to be released on 1/1/13. At first there was no info,but as it leeks through it is called .17Winchester Super Mag.
I read its 500 fps faster than any other 17 RF round and is available in 20gn/25gn Hp/Vmax and 3 different Manufacturers are making actions for it. don't know more then that right now.
I wonder if Remington will make a Sportster barrel in that caliber??
