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Re: We Finally Got Our Emco 325 II In Production!
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Posts: 66766 | Location: Dubai, UAE | Registered: 08 January 1998Reply With Quote
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Nice bullet's saeed i really like the .585 bullet

Bone braker....
 
Posts: 1557 | Location: Home of the original swage | Registered: 29 February 2004Reply With Quote
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WE made a few 585 caliber bullets today, and I was so amazed at the accuracy of this machine.

We finalized the bullets at 750 grains, and I made one box full - that is 112 fit into the platic boxes we have.

The weight variation was an incredible 0.1 of a grain!!??

We then found some that varied by about 5 grains, so we tried to find what the problem was.

It turned out pretty obvious. That particular copper rod had tiny cracks in the center of it!!

I will take some photos and post them here tomorrow.
 
Posts: 66766 | Location: Dubai, UAE | Registered: 08 January 1998Reply With Quote
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Saeed ..Sound's like you need a new supplyer for your copper rod ..Yik's

Is there a foundery in the UAE that make's rod stock from copper or is it all import..

It really depend's on how the rod stock is cooled once it's been formed that determeans it strenght and structure.
water bath's will couse the rod to form crake's on the inside of the stock air drying is the best way to go.

That's just my two cent's i have only done a bit of it myself mostly bronze casting and rod forming/ also some copper rod stock ....


Pottsy
 
Posts: 1557 | Location: Home of the original swage | Registered: 29 February 2004Reply With Quote
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Saeed,
When you purchase bar, you must specify that you do not want cold rolled bar. Our supplier delivered a batch of cold rolled bar to us once and the first section we used, the bullets all had cracks lengthwise down the body.
 
Posts: 2848 | Registered: 12 August 2002Reply With Quote
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Saeed --- Gerard is 100% on the money
 
Posts: 1557 | Location: Home of the original swage | Registered: 29 February 2004Reply With Quote
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quote:
Originally posted by Gerard:
Saeed,<br />When you purchase bar, you must specify that you do not want cold rolled bar. Our supplier delivered a batch of cold rolled bar to us once and the first section we used, the bullets all had cracks lengthwise down the body.


Gerard my friend, I am afraid we do not have much of a choice here. WE just have to buy whatever is svailable.

This is generally copper rod that is meant for earthing jobs.


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Posts: 66766 | Location: Dubai, UAE | Registered: 08 January 1998Reply With Quote
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