I don't think my weights are lead, they won't go in. I lubed them with One Shot to no avail. Any suggestions what else I could use?
.358 is the right size. .357 might
also be the right size. So use the .358's. Slugging the barrel and the chamber throats is what you do to diagnose a problem. You don't have a problem yet. You're borrowing trouble from tomorrow that may never happen.