300 AAC Blackout / HC / CFE BLK

[Wes Sage]

DO NOT substitute Lead and Jacketed data for one another.
Lead seals the bore tighter, and because of its 'Sticky" nature, generates pressures higher and faster than Jacketed bullets
Look for published data, or multiple sources and then work up loads that are safe for YOUR weapon

[Jay Andrew]

DO NOT substitute Lead and Jacketed data for one another.
Lead seals the bore tighter, and because of its 'Sticky" nature, generates pressures higher and faster than Jacketed bullets
Look for published data, or multiple sources and then work up loads that are safe for YOUR weapon

Wes, I have never heard that before.

Any data or reports you’ve come across show that?

Substituting jacketed data for lead is pretty common in the casting world.


Reloading...it’s like knitting for men.

[Wes Sage]

Yep, all my reload manuals.
Lead loads are normally LOWER for the same velocity.
Jacketed take more powder, as jacketed bullets do not seal the bore, are slicker, and allow for blow by, and a drop in chamber pressures.

Wes, I have never heard that before.

Any data or reports you’ve come across show that?

Substituting jacketed data for lead is pretty common in the casting world.


Reloading...it’s like knitting for men.

[lklawson]

Look for published data, or multiple sources and then work up loads that are safe for YOUR weapon

I am looking for published sources, or at least a safe starting point. The problem is that I haven't been able to find published data for CFE BLK powder and Lead Hard Cast bullets. It would sure be helpful if you had published data you could point me to. I'll buy a book if it has the data.

Hodgdon recommended the Lyman 50th. for cast data but Lyman specifically told me that the book doesn't include data for CFE BLK and that I should contact Hodgdon (enter infinite loop here).

Thanks.

Peace favor your sword,
Kirk

[Wes Sage]

That is the issue with reloading sometimes. There is 0 data for what you want to do.
In that case there are only 2 options:
Get a different powder and bullet combination that is listed OR 9If you are a long time reloader) work up loads on your own with lots of combined data and research to support the theories you have for loading that combo.
I have had to do it quite a few times, and have come up with some pretty awesome loads, and others just failed miserably

I am looking for published sources, or at least a safe starting point. The problem is that I haven't been able to find published data for CFE BLK powder and Lead Hard Cast bullets. It would sure be helpful if you had published data you could point me to. I'll buy a book if it has the data.

Hodgdon recommended the Lyman 50th. for cast data but Lyman specifically told me that the book doesn't include data for CFE BLK and that I should contact Hodgdon (enter infinite loop here).

Thanks.

Peace favor your sword,
Kirk