What bushing size for no turn 223Rem Lapua brass

[Bulseyetom]

I am buying a 223 remington and I was wondering if somebody that is using Lapua brass could measure and see what the loaded neck diameter is so I can order a bushing to get started. Thanks. Tom

 

[SS427]

With no turn Lapua brass I use a .249 bushing. All of my brass came out of the brown box. Blue box might be different. I could probably get away with using a .248 bushing but not larger.

Edit - I have a .248 bushing in my die now for Lapua brass. Sorry. Started with a .249 and wasn't getting the neck tension I wanted so exhanged it for the .248. If I had a .247 I would try it because I'm using N133 in my favorite .223 these days.

 

[rocketron]

loaded neck dia. on my blue box is .250 you'll be good with a .248 .249 bushing

 

[GAnderson]

Same as above on the blue box Lapua 223...., .250 loaded round, .248 bushing.

Gene

 

[Jet]

Mine are same as above. Blue box, no turn outside diameter is .250 for a loaded round.

Jet

 

[Bulseyetom]

Thanks. I will order a 247 and 248 as I have 9 pounds of N133. Tom

 

[lpreddick]

i just finished loading and first time firing some lapua 223 match brass(blue box) and noted the following: new brass necked with a .248 bushing and bullets seated quite hard, right much resistance. loaded neck diameter meas .250. they shot fine. prepped these cases, including nylon brushing inside neck, neck bushing at .248 and bullet seated easily. granted the residue inside the neck does act as a lubricant(i don't use an ultrasonic cleaner) loaded neck diameter meas at .2495. since i seat .020 into the lands i suspect sometimes a bullet will get pushd into the neck if neck tension is not adequate. i see less of this if loaded neck dia is .002 greater than sized, so i use a .247 bushing on fired brass and groups stay tight, mvs are close and es are low. i am suspecting there is a tiney bit of neck thinning with firing. am i seeing what i think is happening?