by Gwion » 21 Jan 2015, 7:26 pm
Hey Boothy. It must be frustrating as hell. Pretty new to reloading myself; just a year into it. You may (probably) have covered this already but are the cases all trimmed to length?
Beyond that, so many different comments and advices from different angles, i know it gets confusing. Do your self a favour and buy/get a reloading manual or two. Nick Harvey's book is well recommended and has great info but if you can't get your hands on one easily, search the web you can download ADI, Hornady etc etc, free. They may not be the most current version but the basics are the basics. I have downloaded a few, plus have NH book and the one that came with my kit (RCBS). Read one, then read the other, then read an other, then re-read them all. They all cover similar stuff but some have things that aren't covered by others and some are written differently and may put things in a way that makes more sense to you.
If you still can't fix the issue and there is no club or veteran loader to help you out, buy a new die (or borrow one as you mention above). Manufacturing & quality control being what it is, some times a dud gets through and there may be an issue with the die. Not sure how this will be the case, as some of your cases are ok so i'm thinking there is inconsistency in your process somewhere.
Anyway. I can't help anymore than that, so good luck and hope you get it sorted soon!
Cheers and stay safe!