Fire forming brass

[Redhawk1]

I am going to try to reload with brass that I shot out of my Shiloh for paper patch bullets. I ran my brass through a universal decapping die so not to change the brass, cleaned it and then tumbled. I put a paper patched bullet in it and it went in with little effort. I will run the loaded round through my sizing die with the decapping pin removed to put a little pressure on the bullet to keep the bullet from falling out. Is anyone else doing this?

[John Boy]

Is anyone else doing this?

Redhawk, many others including myself reload BPCR rounds in this manner.  I maintain 0.002 neck tension

[GregP42]

Sounds like you been looking over my shoulder when I do my 45-70s. It works out real well that way.

Greg

[Lead pot]

Yes it will work fine for the PP but I would nor recommend it for the GG bullet unless you take care not to push it in to a point were you swage the bullet side wall down to far, I dont like to do this.
For the PP load I patch too .002 under bore and that makes a problem with a regular sizing die especially with my .50-90. RCBS just does not make a proper sizing die to hold a .510 diameter bullet or even at .512 I sent the dies back and they always were good and replaced it but they wont make one of proper diameter. The Lyman does work.
But what I do for loading PP For my .40-70 ss I use the Hornady .405 brass because of the thicker walled cases they taper down and when there trimmed to 2.5" the case walls are ideal for the .398 diameter PP bullet but there to tight for a .408-410 diameter GG bullet, it swags them down to .406 at the bullet base.
The ..45-2.1 or the .45-2.4 I will use the .45 basic brass and trim it down and it will hold the .448-9 diameter bullet with out having to run them into a taper crimp or a sizing die.
But again the size die or a .452 pistol die will work like a taper crimp die, but take care setting them up so you dont swage the bullet.
One thing you could do is send CH-4D a drawing of your chamber reamer like I did for my .44-90 sbn and they will make a die that fits your chamber.
Kurt

[Lead pot]

I Forgot to mention one thing I do for a case wall that wont hold a PP bullet.
I will run a empty case through a taper crimp and and swag it down or a seating die of another caliber that just pushes in the side walls then I use an expander plug I make .0015 under the the bullet diameter and roll just a slight flair to except the bullet and seat the bullet.

Kurt

[Redhawk1]

WOW I was surprised to see this one come up. I wrote that almost 4 years ago. So I guess I was the only one doing that for 4 years. 
I am still doing that today. It has worked great for me.