doublegunshop.com - home Forums General Discussion DoubleGun BBS @ doublegunshop.com Need to full length resize UMC 10 g brass hulls

The good news is... I found and bought 52 10 gauge brass hulls at a price I could afford.

The bad news is... they are expanded out about .010 on the mouth end and a couple thousandths on the base end. They will only enter the chambers of my Remington 1889 about half depth.

Is there any affordable 10 gauge full length sizing dies out there?

Is there any other was to size these hulls down?

CH4D makes 10 G shotgun dies, not cheap and large thread won't fit ordinary presses. Might check Rocky Mountain Cartridge & see if his hand set will serve.

Large cases size best in a Arbor press, like machine shops use for bearing work. Cheap from Harbor Freight. CH4D will do about anything you want, bet he will make 10 g without threads for arbor presses.

Mouth not so hard to size base another matter depending on your hulls. Sizing hollow is much easier than solid brass around a shells base. I shoot a .25 Krag with a tight chamber. Turn a bit off the base in front of the rim with the lathe because the size die won't do the job

Tin of Imperial Size wax is about essential too.

Boats

You CAN use a MEC or Texas 10 gauge sizing ring and column and vice and a hammer and drive out punch (wood or aluminum with hole bored out for primer bump)

I use Imperial Sizing wax on the hulls and use the vise to seat them into the sizing die, then use the punch/hammer to drive them out. Please insure the die body is long enough so you do not collapse the mouth of the hull when you seat it in the die body.

Works well and is inexpensive.

Oh, yes also have a 12 ton shop press but do not need it



Mike

Thanks,

I have a MEC 600 10 gauge press. It only has the sizing ring and won't size the body of the hull.

The hulls are UMC and are what I'd call balloon head. The walls are a little thicker near the rim but not by much. The base thickness is thin - I'm measure between .035-.050 thick. The LP peimer pocket extends into the bottem a good bit.

Ballon head ought to be easier then solid brass at the base. Several ways to skin a cat. If I had that many to size and no dies would chuck up some Aluminum in the lathe. Open it up to correct size then lathe off not turning push the cases into the hole with the tail stock knock them out through the headstock. Lubed good with imperial and not much to size it does not take much push.

Having said that I size my paper 10 G in a P-W 375. Die sizes the entire hull and no doubt would size brass too, if lubed. Press itself is not real strong and can be broken so it depends on how hard you need to press. A P-W 10 G die is not real expensive and can be used out of the press. Drill press arbor will press pretty good, if it's a big drill press. So it depends on what you have to work with.

Cheapest way from scratch probably a Ponsness Warren 10 G die and cheap arbor press.

All speculation take it as such.

Boats

Forgot to add, Mikes advice on reliving the knock out rod so,you don't disturb the primer pocket is good. I make knock out rods out of Delrin with one end counter drilled to avoid messing up the inside of the hull. Keep them in 4 Gauges to push hulls out of PW dies.

Boats

If I was determined for nostalgia's sake to shoot brass hulls I think I'd just by some new ones.
On cases that old the brass is going to be brittle and most likely split after a few shootings.

I agree with the PW 375 die and delrin or nylon punch. I wouldn't buy new brass unless I had to.

OK, just to insure we are on the same page.
Your 600 press does not allow the brass to be sized and then ejected?

Or are you saying after sizing in station #1 the brass still won't fit?

The sizing die and tube will unscrew from the press
and you can use it or one like it to size the brass with a vice for power.

https://www.youtube.com/watch?v=VI47bl2h0cU

Got to thinking about the old saying, "You can't eat an elephant in one bite.".

I have the MEC 600 10 gauge press. I can use the sizing die to size to the base. I've just done it with one hull. But that leaves the hull with no taper. It's still too big up front.

But the sizing ring from my 12 gauge MEC will fit the 10 gauge die. It's too small but I do have a small lathe that I can use to open it up to sizs the open end. May make two. Just thinking. My local MEC dealers don't list the sizing ring only but may have some as spare parts.

It probably wouldn't hurt to anneal the brass but it's way to hot to think about firing up the lead pot.