First shot making 30BR brass, have a look.

[TommyD11730]

It's nearly impossible to get a good photo, but I tried.

Peterson 6BR necked up on a PMA Mandral. Cases trimmed to 1.50".

Neck turned to .00935- .00945"s. My concern was not cutting into the neck / case junction. My old eyes with the aid of a magnifying glass would swear the outside donut that formed well above it.

So what do you think? Trimmed too far down? Not far enough?

Thanks guys!

 

[DJSBRS]

If you use the correct angle cutter, it should just stop at the top of should slightly. A 30º will take the relief angle cut at the neck shoulder junction to reduce the donut build up after several firings. I would have turned it down a little further.

DJ
DJ's Brass Service

 

[lancexxx]

I agree, A little deeper on the shoulder

 

[TommyD11730]

If you use the correct angle cutter, it should just stop at the top of should slightly. A 30º will take the relief angle cut at the neck shoulder junction to reduce the donut build up after several firings. I would have turned it down a little further.

DJ
DJ's Brass Service

Thanks. I have a 33 degree. I'll do just that, turn it down some.

 

[TommyD11730]

I agree, A little deeper on the shoulder

I'll try and adjust the mandral say 10 tho increments on the K & M cutter.

 

[TommyD11730]

I moved the mandrel down .020. I did not change the depth of the cut. This is my result.

A .307 gauge pin slides in and out of the neck with minimal friction.
I would like to anneal them then neck size. Problem is only neck sizer is a Lee 308 collet. Can I use that die if I'm careful?
(One problem I see is the decapping pin is too big. Must be 4 LRP)

 

[Larry Koch]

.330 nk? Seat a bullet and measure diameter. I like .327. Or .3265 range.

 

[AlNyhus]

Your final result looks pretty nice....well done.

Now is a good time to seat a bullet and check the OTB (over the bullet) dimension. If you're happy with that and you're going to stress relieve them, do that next and then just run them into your f.l. bushing die before firing.

Good shootin' -Al

 

[FNSafari]

Case length, consult your reamer print and trim .005 short IMO

 

[TommyD11730]

.330 nk? Seat a bullet and measure diameter. I like .327. Or .3265 range.

Thanks, I have some berger 115s on the way. I'll do just that.

 

[TommyD11730]

Your final result looks pretty nice....well done.

Now is a good time to seat a bullet and check the OTB (over the bullet) dimension. If you're happy with that and you're going to stress relieve them, do that next and then just run them into your f.l. bushing die before firing.

Good shootin' -Al

I currently do not own any 30BR dies. I had hoped I could send fired brass to Harrels to have a die made.
However to do that I would have to neck size the brass at a minimum.

So, I don't have equipment, or a system. Definitely could use some suggestions.
Thanks!

 

[DJSBRS]

Send them to me and I'll get them ready for you to load and send them back to you. No charge.

DJ
DJ's Brass Service

 

[AlNyhus]

Send them to me and I'll get them ready for you to load and send them back to you. No charge.

DJ
DJ's Brass Service

Now there's a nice offer!

 

[TommyD11730]

Send them to me and I'll get them ready for you to load and send them back to you. No charge.

DJ
DJ's Brass Service

That's incredibly generous! I'm going to send you a PM.

 

[boltfluter]

Send them to me and I'll get them ready for you to load and send them back to you. No charge.

DJ
DJ's Brass Service

DJ is a true gentleman in every sense of the word.
Paul

 

[snert]

Wow, double wow. That is a very kind offer to help another guy who is getting started.

 

[jackieschmidt]

I do not cut into the shoulder. Mine look like your first set of pictures.

Cutting into the shoulder will not prevent the “dreaded“ do-nut from forming. But I could care less about a do-nut in a 30BR because the bullets I shoot never get anywhere near where it forms.

 

[LCazador]

ditto what Jackie says ^^^

 

[Thud]

DJ is the Best

 

[Bill Norris]

I do not cut into the shoulder. Mine look like your first set of pictures.

Cutting into the shoulder will not prevent the “dreaded“ do-nut from forming. But I could care less about a do-nut in a 30BR because the bullets I shoot never get anywhere near where it forms.

^^^^^^^ This 100%.