Rcbs neck ream die reamer

[butchlambert]

I've bought several from Wilson in the past.
https://lewilson.com/inside-neck-reamer/
McMaster Carr has reamers in .0005 increments.
https://www.mcmaster.com/reamers

 

[dkhunt14]

Foster has reamers for its trimmer. Almost always, when you neck down, the brass gets .001 thicker. It probably needs turned or reamed for the chamber and be safe to shoot without building excess pressure from pinching the bullet. Matt

 

[ppaul]

I've read this with interest, but it sounds like a whole lot of bullshit when you can just buy some brass,load and shoot. I'm a guy with more time than money,but by the time you do everything proper, you'll be to old to shoot!LOL

 

[TrxR]

Couldnt you use the proper size expander mandrel the outside neck turn instead of reaming?