I have my doubts as to it being a PURE Blacktail. A Biologist cannot determine if it has Mule deer in its blood by simply looking at it, they would have to look at its DNA. It could have Mule deer several generations back. Since Mule deer physical characteristics are primarily dominant traits, even a little big of Mulie blood can produce big antlers and body size but still have the black tail. It may be a Blacktail though. I couldn't tell you from that picture.

Either way, NICE KILL!

And to those who don't believe that Blacktails get that big, you are VERY wrong. See my thread in the Bowhunting section here about the Giant 4pt 250lb+ blacktail I took out of the rainforest here on the Olympic Peninsula in Washington. Blacktails in Washington regularly get over 150lbs and are not uncommon to get up to 175lbs or more. California, Southern Oregon, and Alaska produce much smaller blacktails, with a big California Blacktail buck being 150lbs.