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AusGlock you are missing my point, it would be nice to have a calculated weight confirmed, and not approximates.
+- 2grs would indeed be acceptable.

First off, that Tom does not calculate exact weight on hardball alloy is not ment as a negative comment. It is just the facts coming from himself, as he has said that his CAD software does not render...

Uhm no. From my understanding his software calculated WW alloy but not hardball alloy. He said that WW alloy is approx. 1,5% heavier than
hardball. So no, not a joke.

Thanks for the tip. I have sent him a mail.

Hey!

Who machines molds for the BC MK II machine? I know of NV Ballistics, Accurate Molds and MP Molds.
MP Molds are out of the question since response there by mail is a tragedy. Accurate Molds...

I use the precision cast bullet software from Mr. Tom Myers

http://tmtpages.com/draw/draw.htm

I will have to tinker alot more with design and length. I would want a short bullet as possible so...

You`re indeed right. No fun in that!

I already have software for calculating and designing bullets. What I am uncertain of, is the amount of bearing surface needed to make the bullet precise enough. To make it chamber with reasonable...

Just to clarify, it is a 147grs 9mm Round nose. im designing. If I compare to existing designs, probably only a couple would actually work properly in a short throated barrel.

Hello there fellow casters.

I am trying to design a 147grs bullet that will chamber in CZ pistol chambers or other "short throated / no freebore chambers"

Now, to do this I need a reasonable...

I think you are right.

I have shot bullets only .0005 over bore dim. With no leading. The Clue is as with all lead bullets match your pressure to BHN to obtain bullet "deformation" and good obturation. 6ml coating pr 2kg...

3 should do the job and then some. Many do only 2 :)

Uhm... Is that 2 coats? Looks to me it is one coat, or too little Hi-tek used to get good coverage. My experience is that colour itself does not matter for performance. But do some testing with your...

Wow, that looks like something that comes out the nose, or something with a terrible disease lol!
Keep on trying. Hi-Tek is easy once you have found out what workes with your system and your bullets...

Is the brown copper color still availeble? The sites I have seen they are not an option.
Does anyone have a picture of that color? Finished coated bullets?

Does someone know what colour this is? Looks awesome.

167191

Does anybody have a picture of the red copper color?

Gentlemen, does anybody here has some pictures of the red copper colour? How does that one compare to bronze 500 in hardness?

I understand. It might work for you with low BHN. It might not. It worked fairly well for me with low BHN in moderat load. But the higher BHN worked better for me as there were no lead residue in the...

The measurments should be from a micrometer and not a dig. caliper. The caliper has measuring tolerances that could make or break the result. Micrometer that is proper calibrated has not. I myself...

Maybe a stupid question, but often is the answer no.

Have you slugged the barrel so you know what dim. to size to for good function for lead bullets?

I have seen signs of leading at the muzzle end (not severe) if the bullets were a tad to small for the bore. Have you shot lead bullets through those 2 guns before?
I have also seen tiny tiny TINY...

Humidity might be a problem, but that is not something I have battled with. Cold weather is. The ozzies should know alot on that subject I would guess.

My bullets are tumbled to it feels a tad...

20-30 sec sounds like a looong time. My acetone is usually flashed off just under 10 sec. For the coating to cover the bullets good enough in that amount of time, one has to tumble quite aggressively...