Until now I have only used Hornady Dies seating dies. These have a collar that drops down over the bullet to keep it straight as its seated. I use it for both my 7x65R and 7x57. I have started reloading the 223 using lee dies. Using flat based bullets 50gn bullets and they are tipping sideways as the ram is raised - not far of, but enough that the tip is marked as they enter the die and then straightened. Clearly there is a technique that I don't yet have when using these dies.