Thread: Fireforming with porridge and soap

Originally Posted by rupert

The premise seems sound. I used a simpler loading set up for fireforming annealed 303 cases to 7x57R: 18 grains of Green Dot powder (a medium speed shotgun powder I had spare), a random LRP, and filled the rest of the case with toilet paper. Cases came out nearly fully formed. I started off the process with 10 grains of Green Dot and worked upwards to 20 grains. 18 grains produced as much forming as 20 grains, so I used 18 grains. I have no experience of Trail Boss.

And how would you apply this process to fire a 6.5/284 case necked up to 7mm ready to go into a 284W chamber?