6.53 Dutch converted Cases question

[bob q]

Chocolate Malto-meal is better , smells like brownies when fired .

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[toot]

when I fire form my brass I use UNIQUE, rice krispies, they do not create a heavy wad, and pack hard. they keep the powder against the primer and disintegrate when fired. then I push the case neck into a bar of ivory soap to seal it and fire it up into the air, that creates more pressure on every thing and WALLAH!! you have it.

[browningautorifle]

UNIQUE, rice krispies, a bar of ivory soap to seal it and fire it

That's good...

[Parashooter]

Also coarse sawdust, polyester fluff from a discarded pillow, worn-out tumbling media (corn or walnut). It really isn't necessary to waste food for this.

[harry mac]

I bought a 20 round bag of 6.53 rimmed Dutch ammo yesterday at a gun show. Everything looked good at the time, converted 303 cases. On bringing them home and comparing them to existing Dutch rounds the necks on these are set back a bit, maybe a 32nd of an inch. As it is a rimmed case and the rim creates the head space I assume this is not an issue and they will fire form to the correct dimension. Is this correct? Or do I need to pull bullets and fire form them without the additional pressure of the bullet?

Surely you don't mean to fire someone elses handloads? Do you know the guy who loaded them?

[ireload2]

I have reformed 4 or 5 different brands of once fired .303 Brass while developing my case forming process. The cases are close enough to the chamber size that I never considered a separate fire forming process. I just used my standard load and shot them up at the range. I have had one case burn though about 1/2" above the rim. It was a metal defect in the brass and it caused no problems.