I also use Winchester bulk, 46 grain hollow points meant for 22 Hornet.
It's quite bizarre when you strike a gopher well centred.
I describe it as such, it's like a giant picks up critter and promptly turns it inside out, like into some bloody sock, and sets critter down!
Got to be something to do with total bullet jacket upset, but it is not a two to three foot 'space shuttle' launch, like normal 50 grain soft nose spire-points, at less than 100 yards or so.
And the 46 grain double hollowpoint Calhoons, if you can find them, as he is in Montana now, definitely puts them into orbit!
Must be seen to appreciate it.....