Yeah, I have one for my 458 socom and 338 spectre. Luckily when I was sizing these rounds I had the rifle with me. We loaded one round and tried it in the gun. Didn't work so we didn't load any more. I did find a site that has a collet die for removing the bulge in the case but it's $100 and my friend only hunts with this rifle and sights it in once or twice a year. It took him 3 years to go through 40 rounds