Personal longest was 389 on a Muley doe. Rem 700 7mm RM 140TTSX. Father in law used the same (my) rifle on a 150" WT at 418 this past fall after missing twice with his .300 Win.I told him which dot to use, bang...flop.
I feel confident with that gun/load to 500. It shoots accurate enough for farther out but I don't have the optics to support it. I'm ok with 500 yards.
