NEI 335 gr .375 with copper tubing driving band.

[Yukoner]

Anyone else using one of these? I got mine almost thirty years ago.






Bullets come out of the mold at 332-333 gr using straight wheel weight metal.






Never had to worry about bullets for my 375/06, 375 H&H, or 375 Wby, as long as there was 3/8th tubing and wheel weights around.

Ted

[chsparkman]

Never seen that before. Very cool. Are they accurate?

[MaLar]

I remember reading about these. There was concern about the core slipping the jacket and leaving a tubing jacket in the bore. Do you core lock them some how? This would be some thing that could be done with a modern mold in a lathe.

LaMar

[missionary5155]

Greetings
I would also like to read how they shoot as I have a 375 Whelen and a H&H up north waiting on our return.
Mike in Peru

[onceabull]

Hadn't seen that one B4, but I have one(also an NEI ) two cav.with two diff.weights in .375..It's housed with another member here,and I don't recall the actual as cast weights...Saw Paco Kellys' writeup on these years ago,and finally one dropped in my lap..(for a substantial fee) Mine casts the copper jacket flush with the base of the boolits...Obviously a longer jacket then the OPs'.. Onceabull

[Yukoner]

Never seen that before. Very cool. Are they accurate?

They are accurate enough for hunting out to 300 yd.

Ted

[Yukoner]

I remember reading about these. There was concern about the core slipping the jacket and leaving a tubing jacket in the bore. Do you core lock them some how? This would be some thing that could be done with a modern mold in a lathe.

LaMar

Friend of mine said he sometimes tinned the inside of the tubing to bond them, however never had one come apart in any of my barrels, and the tubing was not tinned.

Ted

[MaLar]

This gets me thinking about opening a Lee mold to take 5/16" jackets. Hmmmm?

[C. Latch]

How does that work? Do you swage the tubing over the bullets, or do you put the tubing sections into the mold then fill them with lead?

Neat, either way.

[Yukoner]

You heat the tubing while holding it with small needle nose pliers, place it in the hot mold, close, pour, and what you see in the picture comes out.

Ted

[Yukoner]

This gets me thinking about opening a Lee mold to take 5/16" jackets. Hmmmm?

Now, why wouldn't that work? A lifetime supply of bullets for 30-312 cartridges!

Ted