Don't waste your time (or powder) with Lever and 55gr bullets. There's a reason the recomendations are for 75gr bullets. It's too slow and bulky for 55s.

Also, if I understood your post right - don't guess at powder charge weights based on other powders nearby in burn rate. That can be a dangerous practice.
Safe enough in this case, since you can't get enough Lever in the case to cause dangerous pressure with 55s, but in some other combinations it could be bad news.

Last edited by Yondering; 02/03/20.