Ive got a 1954 model H&R 20 gauge single shot with a 30” full choke fixed barrel. 3” chamber. It was given to me by my grand daddy before he died and was his favorite gun. I love this gun and I want to kill a longbeard with it. I’m kind of nervous about shooting any type of turkey loads through because it’s so old and has a thin barrel. Y’all think it’ll handle a 2 3/4” load of Hevishot #7s? Don’t really want to try TSS through it.