I noticed a box of bullets from Nosler in a magazine picture that was labeled SHOTS. They were 22 cal. 52 gr. HPBT. Are these custom competition bullets? Would they be a good varmint bullet? Are they available and if so where? The only reference to them I found on the web said that they were for kangaroo shooting, seriously. I thought that I might like to try some in my 225 Win.