256 Win Mag

El Paso Joe · July 18, 2006, 12:18 AM

Years ago when I bought the TC with the 256 bbl I never thought they would quit making the rounds. When they did I just decided to bite the bullet (no pun intended) and make cases from 357 Mag and load my own.

Well, I am doing just that - Redding No 1 and No 2 sizers and FL dies from Herters ('member them? Went belly up some decades back...). There is a cautionary note on case neck thickness - if it is too thick it will jam in the chamber and not release the bullet and build dangerously high pressures.

So what I am doing is after FL resizing, I ream the neck with a 25 cal reamer that fits my RCBS trimmer. What is the neck thickness supposed to be? I can't find that info anywhere. Anyone else done this?

WIL TERRY · July 18, 2006, 10:39 AM

.014"

July 18, 2006, 12:18 AM	#1
El Paso Joe Senior Member Join Date: July 4, 2006 Location: Spokane Valley Posts: 340	256 Win Mag Years ago when I bought the TC with the 256 bbl I never thought they would quit making the rounds. When they did I just decided to bite the bullet (no pun intended) and make cases from 357 Mag and load my own. Well, I am doing just that - Redding No 1 and No 2 sizers and FL dies from Herters ('member them? Went belly up some decades back...). There is a cautionary note on case neck thickness - if it is too thick it will jam in the chamber and not release the bullet and build dangerously high pressures. So what I am doing is after FL resizing, I ream the neck with a 25 cal reamer that fits my RCBS trimmer. What is the neck thickness supposed to be? I can't find that info anywhere. Anyone else done this?

July 18, 2006, 10:39 AM	#2
WIL TERRY Senior Member Join Date: July 6, 2000 Location: BLACK HILLS Posts: 1,322	Neck Thickness: .014"