300 Weatherby Mag

[truchot1]

I thought I would load up some rounds for my brother-in-law and had no idea what I would run into.

First I was getting dimples on the shoulder when sizing. I have read about this but never had it happen before and load thousands ever year. I was able to size the rest without this issue but wonder how much sizing it is really doing. Certainly not to standard belted magnum norms (which is okay as I want to head space off of shoulder).

The second thing I have run into was the neck starting to push into the cavity when seating the bullet. Same thing, I have never had this happen. I have opened the necks up a little with a sizing ball and Redding is sending me a seater die insert for VLD to make sure I can seat without crimping.

I have never had so many frustrations loading. Anyone out there ever hand load these? Any special tricks?

Thanks for any input or suggestions.

Greg

 

[JRS]

The "dimples" on the shoulders are caused from using too much lube. I haven't a clue as to what you are doing to the neck. Have you thoroughly cleaned the dies?

 

[2506]

If you are pushing the neck back into the shoulder you have your seating die screwed down too close to the shell holder and the built in roll crimping part of your seating die is hitting the case mouth and crimping the neck before the bullet is fully seated. Back that seating die out 3 or 4 turns and readjust your seating stem. Dimples are caused by too much case lube.

 

[logger3006]

Seating the bullet should never push the neck into the shoulder.
Unless.... They were overheated during annealing.
It has to be what 2506 said, turn your die out and readjust.

And yes the the dents are from to much lube. I use Unique case lube from Hornady, and never touch the shoulders. Just the body and the outside of the neck with a scrape from my fingertip inside the neck, its from the very little lube that's left after lubing the body.

 

[truchot1]

Too much lube is what I thought too. So after the first one, I completely cleaned the die and use some Imperial very sparingly. Same result. Completely cleaned the die again and used Hornady case lube, again very sparingly. Same result. The next day started over with Imperial again with no issues. Until the bullet seating issue. I wonder if the case design is more temperamental?

 

[JRS]

Too much lube is what I thought too. So after the first one, I completely cleaned the die and use some Imperial very sparingly. Same result. Completely cleaned the die again and used Hornady case lube, again very sparingly. Same result. The next day started over with Imperial again with no issues. Until the bullet seating issue. I wonder if the case design is more temperamental?

Case design has nothing to do with it. You were using too much lube.

 

[CJ6]

Re-read your loading manuals section on DIE set-ups and case lubing.

 

[truchot1]

Wow! Considering the thousands of rounds I load every year with absolutely no issues, I kind of thought maybe I stumbled on something a little odd. Guess it is just me.

Thanks.