OP........I have done lots of inside and outside neck reaming through my wildcatting days. I have found for removing donuts that the best thing is to full length size without expanding ball and inside neck ream with a reamer sized to .001" over the measured inside neck dia. This does not cut your existing neck out of round and removes the excess brass at the donut. I then mandrel expand the neck to the correct size for desired neck tension, load and fire. I have found this to be superior to pushing the donut out and outside turning as the brass memory tends to still leave excess brass inside and a smaller donut still exists when the bullet is seated. Inside reamer sizing is critical though, no more than 1/2 to 1 thou over neck inside dia.
Donuts - how to get rid of!?!???
- Thread starter chrismc
- Start date
freezer filler
CGN Ultra frequent flyer
- Location
- Windsor, Ontario
If u leave them unattended, they will disappear!
X2 Please Jerry
Mystic Precision
CGN Ultra frequent flyer
- Location
- Summerland, BC
I use the Lee collet neck die, Redding body die, Forster seater to make my match ammo.
Outside neck turn with a Forster set up. 12V driver saves my paws.
Trim with a 3- in 1 Forster set up.
Anneal on a Bench Source annealer
A neck die on its own can't do all that is needed to maintain and ensure consistency in your brass. All steps matter....
Jerry
Outside neck turn with a Forster set up. 12V driver saves my paws.
Trim with a 3- in 1 Forster set up.
Anneal on a Bench Source annealer
A neck die on its own can't do all that is needed to maintain and ensure consistency in your brass. All steps matter....
Jerry
