30-284?

[L.Sherm]

For you neck up wildcatters, how do you manage neck length in this scenario?

Don't worry about it untill there to long, just scrub the carbon ring like normal

 

[L.Sherm]

On the neck variations dont worry about untill there shot once.

 

[Tac-O]

On the neck variations dont worry about untill there shot once.

It is on once and twice fired brass that I noticed. I figured I wouldn't worry about neck turning if the difference is 1 thou or less but in some cases it's 2 thou

 

[L.Sherm]

What brand of brass?

 

[Tac-O]

What brand of brass?

Peterson. All my measurements virgin are awesome. Usually only 0.0005 thickness variation and maybe 30% about 0.001

 

[L.Sherm]

I dont get anything like that necking up 28 to 30 on my ADG 28 Nosler brass like .0005

 

[L.Sherm]

If its good before should be good after, are you lubing your necks

 

[Tac-O]

If its good before should be good after, are you lubing your necks

Yup. Imperial dry lube prior to expanding.

I've got some more virgin brass so I'll have to take some more measurements throughout and pay closer attention

 

[Tac-O]

And I meant.... I don't want to buy neck turning tools and start doing it right now... But yea I'm going to at some point

 

[nksmfamjp]

And I meant.... I don't want to buy neck turning tools and start doing it right now... But yea I'm going to at some point

What is your fired neck diameter vs your loaded round diameter?

 

[Tac-O]

What is your fired neck diameter vs your loaded round diameter?

Loaded is usually 0.3375 and fired is 0.341-0.342 depending on anneal

 

[Tac-O]

What do you guys think about running a 6.5 rpm case into a 30-284 after necking up? You think it would be possible to set the shoulder all the way back in one go?

 

[Tac-O]

One other question. I talked to someone at Manson a couple weeks ago about a reamer and the prints they sent me that they had on file.

Most 30-284 reamer prints I've seen have the head diameter that is 0.200 from the base being 0.501. My dies size my fired brass down to 0.4995-0.500 at that point. To avoid an eventual clicker problem like what the 300 prc has going on, do you think I ought to have this dimension enlarged to 0.502 or 0.503 to avoid it? I plan on taking this brass to as many firings as possible, so I think it's possible I'll eventually have brass that's too hard in that area to size it below 0.501. virgin measures 0.499.

 

[FEENIX]

4D rentals has one with a 0.340 neck and .090 freebore. This one would barely work for no neck turn if you have Peterson 284 brass. Most of my loaded neck ODs are 0.370-0.375. but, I don't know if 0.090 freebore would be enough for the heavy bullet application. And I don't know what kind of shape that reamer is in. I'm leary about rental reamers now that I got burned by a 40 year old reamer.

My gunsmith rented the .30 Gibbs reamer from 4D without any issues.