Neck sizing 303

[WarPig1976]

Hey Parashooter, I just realized I learned the "O ring" trick from your post ".303 headspace 101" I found it googling when I first started reloading for my Enfield awhile back....
Thanks..!!! Jeff..

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[Parashooter]

Hey Parashooter, I just realized I learned the "O ring" trick from your post ".303 headspace 101". . .

You are again mistaken, WarPig. I have never advocated using costly O-rings when a simple piece of discarded fishing line will do the trick at no cost.

[Carlos16]

..... a simple piece of discarded fishing line will do the trick at no cost.

https://www.milsurps.com/images/impo...6/e5s8es-1.jpg

Years ago George Nonte wrote a book on Cartridge Case Conversions. He suggested using wire rings to hold headspace while fireforming. Recently I used the wire from grocery store twist ties to hold the case back while fireforming 8 x 56R Hung. cases to 8 x 58R Danish Krag in a Swedish rolling block. There are several ideas here. Find what you need for the job.