This year I went to the Hornady SST in 20 gauge for deer.
I use to use Winchester BRI in 12 gauge.
I have to say -WOW. First time I ever shot a deer and saw such a visible effect. Deer ran 20 yards and crumples.
I have been hunting deer for over thirty years and got to say this ammo has impressed me on Whitetail deer.
My state requires me to use a pistol or shotgun, no rifle and for the first time ever I do not miss the rifle .