I don't know how many are familiar with the above-mentioned Sisk bullets, but Ralph Sisk made these by hand in his shop in Iowa Park, TX.

I have picked up several boxes of old Sisk .22 bullets over the years, may still have some. My experience with using them in a .223 was that they didn't outshoot anyone else's bullets. Iowa Park TX is a smallish residential suburb north of Wichita Falls TX, northwest of Dallas near the Red River. I used to know the Mayor of Iowa Park.