That’s because it’s bloodshot. You need to trim farther away from the bullet damage. Been there once and learned.We made it back home. I spent the afternoon butchering the animal. I was able to salvage all four quarters, trim meat and some loose flanks for birria. My wife and I seared a slice of the backstraps. Had an odd metallic taste like gunpowder almost. We seasoned it with salt and pepper and olive oil but wasn’t too satisfied with the taste. I haven’t packed anything yet, might consider a salt brine before it is frozen.