.38-50 Hepburn

[beltfed]

Kurt,
What is the weight range of the Winchester vs the Captec brass.
Also, what is case neck thickness and Concentricity /Uniformity of the two brands?
Perhaps the Win would behave better if it were case neck turned just enough for good
concentricity?
Arnie

[Kurt]

There is a little difference with the inside capacity between the two but very little.
I can get 63.2 grains of the new lot of 1.5 swiss Lot# 07/04/21 it's a little lighter than the last lot I used and in the Bcc brass (Captech) I get 63.4 grains flush, but this could be that I screeded a few granolas off differently. It only takes 1 or 2 to make a tenth grain.
I took measurements between the two.
The Win cases the neck wall at 4 places runs .009" to .0105" this is kinda hard to get a precise measurement because on how I hold the caliper, it takes a ball mike to do this right.
The Bcc brass was .0085-.009"
Measuring the inside diameter of the fired case in my chamber of .402" diameter the win case was .381 consistent 360º and the BCC was .382" 360º but again what was the spring back between the two..............

[beltfed]

Granted it does not seem like much, but
I would sure be inclined to outside neck turn the WW brass to match the 0.0085-0.009 of the Captec brass.
Really only turning off the "high" areas above 0.009

[Tgc]

Gentleman, which case neck turning tool do you recommend for the 38 through 50 calibers? Tim.

[beltfed]

I have had good performance from my Lyman Universal trimmer with the case neck turning attachment.
Used it in more recent times for 32-40 Rem Hep, 38-72Win and 38-50 Rem Hep brass to "uniform" the case neck circumferential uniformity
beltfed/arnie

[Kurt]

Tim,

I have used the Forrester trimmer and still do.

Arnie I agree with you. You saw what I had at Merrill with tight and loose bullets.
Bullet release is a big factor for vertical.

I'm working on this project as soon as it cools off in the shop a little so I can ream the inside of the case mouth.

[beltfed]

Kurt,
Neat fixture for inside neck reaming.
But, it is generally considered more accurate/concentric to outside neck turn
over a pilot so that the gap between the pilot and the cutting tool is fixed very well.
and everything is aligned
I will take a PIC of my outside neck turning system on the Lyman trimmer.

Arnie

[ian45662]

I am using this. The cAse goes into one side and the reamer goes into the other. The side the case goes into was reamed out with a
Chamber reamer and the other side was opened up enough to allow a .3765 reamer to pass through it and into the case

[ian45662]

When uploading the picture from my phone I somehow included a picture of our doggie helping me make ammo.

[Distant Thunder]

Ian,

My dog is about as helpful when it comes to loading ammo! Now chasing squirrels, well then he's a lot more active!