I am not sure if Winchester even makes the load now.
I found them at Cabela's several years ago and bought 5 boxes. A life-time supply.
My 78 year old uncle used a .22LR o er .410 back in his raccoon hunting days.
I passed on several of those and really wanted the 22LR over 20 but when I found this with the peep, even in 22 mag o er 20, I bought it.
I had previously owned a 223 over 12 but it was so heavy...