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Nickle plated cases and magteck bullets...

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Posted: Thu Apr 21st, 2005 01:02 AM

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Raymond
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I just started reloading not to long ago. I loaded my first batch of 10mm ammo and it came out perfect, ( or as close to it as possable. ) The groups were alot tighter, and had no problems. I am using UMC nickle plated brass and rainear bullets. I just loaded some more of the same brass with magteck bullets, fallowed the same steps as the other times. But this time my bullets are sinking into the brass when barley pushed. I noticed it when using calipers. What happened?

Any help would be helpful.

Thanks.

Raymond

Posted: Thu Apr 21st, 2005 03:15 PM

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Gunrunner
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Hi Raymond. I've done a little loading for the 10mm a while back and don't recall having a problem like the one you describe. If you have any of the raineer bullets left I'd take those calipers and measure their diameter. Then check the diameter of the magtech bullets. You might have got a batch that are a bit undersized.

If the bullets are identical size then the problem is the brass. Nickel plated brass will usually show splits at the mouth much sooner than regular brass cases, after being run through the dies a few times. (I've had some start to go bad after a few firings, and some last a long time.)

What powder, charge weight, and bullet weight are you using?

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Posted: Thu Apr 21st, 2005 10:48 PM

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Raymond
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Thanks for getting back to me Gunrunner. I am using 9.4gr of accurate #5 with a 155gr magteck. The cases have only been fired once from factory rounds.

I went and measured the two bullets. The raineer's are .400 on the money. The magtecks on the other hand are .399. I ordered them from Midway and have had good luck with them(Midway) until the Magtecks. I have to pull all the rounds I loaded and use raineers or remingtons.

Thanks for your help.

Raymond.

Posted: Mon Apr 25th, 2005 07:02 PM

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BigBill
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I just ran into this problem with the new 44mg mag tech brass cases too.(soft cases) I had the bullets sinking into them after i funneled the case mouths like i always have done when reloading. I pulled the bullets and resized the cases with no funnel and assembled them with a heavy crimp and they are now ok the bullets don't push down anymore. I'm going to try mag tech bullets next with no funnel on the case too. I've reloaded my 444 marlin with Remington brass with mag tech bullets with no probems at all. BigBill

Last edited on Mon Apr 25th, 2005 07:04 PM by BigBill

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