CZinSC Posted July 19, 2010 Share Posted July 19, 2010 I'm having some difficulty adjusting the OAL on the 550. It takes me a long time, and a lot of trial and error, and then I just when I think I have it set, I'm still wrong. What I am doing now is, take an unprimed case, bell it without powder, then advance to the seating die. Do this a couple of times with the locking ring loose, dial it in to the right length, and then when it's perfect, lower the handle all the way down, so that the bullet is in the seating die, preventing it from turning when I lock down the ring. Run another test round, again, perfect length. Then I start loading. With loaded round, I'm getting a length .003 longer. What is causing this? Is it the primer, or is it because I now have shells in all the stations, its just enough to not get the same length? What is the best way to dial in the OAL you are looking for? Link to comment Share on other sites More sharing options...
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!Register a new account
Already have an account? Sign in here.Sign In Now