6PPC bushing

[swadiver]

I have a .268" neck 6PPC (chamber was made for no turn Norma 6PPC brass). i am using either N133 or LT-32. i have only bought one neck bushing so far, a nitride .263"

i know i can measure sized vs loaded round necks to get the actual tension, but with only digital calipers on hand, i don't trust this measurement. since nitride bushings are fairly expensive, wondering whether .263 bushing will give adequate tension when using N133 and 68 gr class of bullets or should i try something smaller.

all help appreciated

 

[Ccrider]

Part will depend on how much you turn off of the neck.

 

[INShooter]

It may not help financially but the only real way you will know is to test for yourself with your setup. If I had a .262 bushing I would lend it to for testing.

 

[swadiver]

Part will depend on how much you turn off of the neck.

no neck turning at this point. i am going to order a .262" bushing to test.

 

[Tim Singleton]

I hesitate to post this the Norma brass shooters won’t agree but anyway

the 262 bushing is a good choice for brass at .0115 to .0118. Any thiner I think you will need smaller bushing

the Norma brass is pretty good stuff.
It just seems to be a little softer. So for me it does not yield the grip on the bullet that Lapua will.
I have wasted a lot of powder and Bullets shooting them
This is a very minimal difference but it does show up with 133

Just my 2 cents

 

[Ccrider]

A 268 neck will require turning if you are fireforming with Lapua brass. If you are using Norma, you are ok. If I remember, correctly my loaded rounds with Norma ended up around .265-266.

N133 likes neck tension in my limited d experience. I would order regular bushings from Whidden first, and then would try from 261 - 264 and test to see what works best. The. I might order carbide bushings although I don’t think they add any advantage. I would rather have the ability to change via different size bushing than have one or two carbide bushings.

 

[Tim Singleton]

A 268 neck will require turning if you are fireforming with Lapua brass. If you are using Norma, you are ok. If I remember, correctly my loaded rounds with Norma ended up around .265-266.

N133 likes neck tension in my limited d experience. I would order regular bushings from Whidden first, and then would try from 261 - 264 and test to see what works best. The. I might order carbide bushings although I don’t think they add any advantage. I would rather have the ability to change via different size bushing than have one or two carbide bushings.

good advise.
I use mostly a 261 carbide. What happens with a steel or tin coated bushing when you go that small they aren’t slick enough and can/will start to shave brass off the necks
the carbide wont

 

[JMayo]

265 sure won't get it I found out ...

263 barely does. Hard snap when seating.
Not much in the case with 65 or 68, fb.
I've got to find a 262 I guess ...

Damnit man ..."stop spending money"
I tell myself

 

[bichettereds]

I would buy some micrometers. They’ll come in handy down the road so you can justify the purchase. Measure a loaded round (at the pressure ring if it’s a flat base bullet) and buy a bushing .002, .0025 and .003” smaller than that. That should put you in the range you need to be.

 

[Ccrider]

good advise.
I use mostly a 261 carbide. What happens with a steel or tin coated bushing when you go that small they aren’t slick enough and can/will start to shave brass off the necks
the carbide wont

What are you turning your necks to? What is your neck turning process?

 

[Tim Singleton]

What are you turning your necks to? What is your neck turning process?

.0115 with a .2436 bullet
i get my brass from Wes Johnson