Gas Checked Lead Bullets ?

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Gas Checked Lead Bullets ?

Postby randyf » Tue May 11, 2010 10:24 am

I just saw these at Midway:

http://www.midwayusa.com/viewProduct/?p ... ber=919778

A 265gr gas check cast bullet.........anyone tried something like this?

Any trouble with leading?
How's the accuracy?

I would like to run them 1700 - 1900 fps........is that too fast for a cast with a gas check?
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Re: Gas Checked Lead Bullets ?

Postby Siringo » Tue May 11, 2010 12:04 pm

I have used these with so-so results. These can be pushed to the velocities you want or even faster, but the problem lays in the gasket. It is shorter that the width of the gas port. I theorize (not totally sure) but gas gets around the check in a split second and dislodges it. I have pictures posted in another thread on cast bullets of the bullet bases.

If someone made a gas check 1/8 inch high -- then we would be good to go.
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Re: Gas Checked Lead Bullets ?

Postby BD1 » Wed May 12, 2010 10:43 am

I'm currently waiting on production of a gas check maker from pat marlin that should allow me to make checks .10 tall.
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Re: Gas Checked Lead Bullets ?

Postby Siringo » Wed May 12, 2010 3:06 pm

That would work. I sure want to be able to use some of the WFN bullets
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Re: Gas Checked Lead Bullets ?

Postby Hoot » Wed May 12, 2010 4:54 pm

Excuse my ignorance of the casting process, but has anyone tried tinning the lead side of the checks before casting them, or at least moistening the lead side with a tiny amount of flux? Just wondering...

Hoot
In Theory, there is no difference between theory and practice. In Practice, there is.
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Re: Gas Checked Lead Bullets ?

Postby pitted bore » Wed May 12, 2010 10:18 pm

Hoot-
Gas checks are applied to the bullet after casting. Usually this happens during the sizing and lubricating procedure.

Here's a HELPFUL LINK to a Hornady web page.
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