Shrek
WKR
You should be fine at that range. I would never recommend a mono metal bullet. A mono bullet will always have a lower retained energy for equal weight bullets and poor expansion at longer ranges. Anytime your bullet passes completely through an animal it has been less immediately leathal. It’s taking energy out the other side and relieving the hydraulic shock wave by cutting a hole for that energy to escape the body. It kills if it goes through vitals but unless you hit the central nervous system directly the animal is going to run some. A violently expanding bullet that penetrates the chest cavity but doesn’t exit the far side does devastating damage. The shockwave spreading from the bullet will expand in a wide cone as the bullet fragments and gives up its energy inside the vital organs. The shock wave causes a stunning effect to the central nervous system and the animal often drops instantly and by the time the nervous system starts to recover the massive blood loss and pressure drop keeps the animal down to complete death. I pick my shots and don’t expect nor want my bullet to pass through both shoulders. Even when you hit an animal back some in the liver or back of the lungs the hydraulic shock turns the organs to soup and the animal expires quickly. Almost every animal I have needed to track was a pass through. Retained weight is a marketing gimmick. Elk are not particularly tough bodied animals. They’re big is all. Unless you hit the shoulder ball you should penetrate fine. Always be ready to put another bullet in one if it’s still standing after the first shot. That goes for whatever you’re shooting an elk with , 243 or 500 nitro , if it’s still on it’s feet shoot it again !