Re: SIERRA M.K. OR SCIROCCO
I've been a nosler BT fan since the old solid base. I've shot numerous large deer with them and had excellent results. A couple of years ago I tried the 180 Noslers in my .338 WM. The go nearly 3300 FPS at the muzzle. I shot a monster quartering away at about a 125 yards and all it did was knock about a fist sized hole in the on side hide and a chucnk of lung about the size of a golf ball. It didn't penetrate any further than that. This probably happened because it hit a rib bone at that bad angle. There was about an 18" spray of hide and blood on the face of the round bale he was next to. He only ran about 100 yards so I guess I can't complain, but I still thought that the scirocco would be the ultimate bullet for hunting big game. Basically a Ballistic Tip with a bonded core.
Because they don't make them in .338 yet, I worked up some loads in 7mm Rem Mag. They only make 150 grains so that's what I used. I killed another large deer at ~600 yards and the bullet went through both shoulders and pounded the rive bank on the other side. He snowploughed about 30 yards and died. I have the hole thing on Video and it looks really cool seeing the bullet connect and the dirt fly up on the other side. To say the least, I was very impressed. A Ballistic Tip probably would have killed him just as dead, but the confidence of knowing the bullet will hold together is enough to keep me using the Swifts. I can't wait for them in 6mm and .338.