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MGP

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Reply with quote  #1 
Has anyone used this yet 6.8 Straight wall cases.
I’m going to see if I can make my new 358 MGPX round
With this brass will be a simple neck down and should not have to fire form
Just not sure about annealing them I’ve never annealed the body of a case
But I’m not sure if I will have to or not the brass will not be worked much at all
Going from straight wall to 358 cal.
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Rifter

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Reply with quote  #2 
You don't anneal the body.  Only the neck and shoulder portion.  That equates to maybe the top quarter to third of the case from case mouth down.
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MGP

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Reply with quote  #3 
Quote:
Originally Posted by Rifter
You don't anneal the body.  Only the neck and shoulder portion.  That equates to maybe the top quarter to third of the case from case mouth down.
I didn’t think so but I was just going by what Starline was saying. I’m going to try Forming without annealing and then annealing the neck , shoulder after Forming and see how that works. Will be nice if this brass works out The 22 Nosler case is a pain in the ass to form.

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BIGGDAWG

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Reply with quote  #4 
from what i have seen with the 223 basic brass you are best to anneal before you start. it is not a big deal to anneal. 
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MGP

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Reply with quote  #5 
Quote:
Originally Posted by BIGGDAWG
from what i have seen with the 223 basic brass you are best to anneal before you start. it is not a big deal to anneal. 
I have an annealing Machine I was just confused on the annealing The body statement that Starline states. So just anneal as I normally would ?
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BIGGDAWG

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Reply with quote  #6 
Quote:
Originally Posted by MGP
I have an annealing Machine I was just confused on the annealing The body statement that Starline states. So just anneal as I normally would ?

i would anneal down to about .2 or so below the new shoulder, if it was me

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MGP

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Reply with quote  #7 
One pass through the 358MGP Die without annealing with ease I’m goimg to
Anneal a few and see if there is any change. With this brass
The new 358 MGP-X will be very possible. No need for any form dies. I just have to check
Case capacity after I fire some and trim to size. It’s too bad Starline wouldn’t give me
The time of day in the past or this would have been the first and original 358 MGP. The brass
Started out at 1.720” Stretched to 1.735” after running it through the 358 MGP Die so they just
Have to be trimmed to 1.700”- 1.705”.
This Round should kick the 358 MGP’s Butt pretty good. I’ll keep everyone posted.

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jpeg 4B4C6E07-A32C-440F-A8DF-BE0833C8D9E8.jpeg (1.81 MB, 16 views)
jpeg 198C26D1-B310-4D67-9E16-708C67A91B1D.jpeg (1.66 MB, 15 views)

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Willsworld

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Reply with quote  #8 
Quote:
Originally Posted by MGP
One pass through the 358MGP Die without annealing with ease I’m goimg to Anneal a few and see if there is any change. With this brass The new 358 MGP-X will be very possible. No need for any form dies. I just have to check Case capacity after I fire some and trim to size. It’s too bad Starline wouldn’t give me The time of day in the past or this would have been the first and original 358 MGP. The brass Started out at 1.720” Stretched to 1.735” after running it through the 358 MGP Die so they just Have to be trimmed to 1.700”- 1.705”. This Round should kick the 358 MGP’s Butt pretty good. I’ll keep everyone posted.

Thank you for sharing all your hard work and results. Your project is very similar to one I have been contemplating. Your design hits the nail on the head. I'm going to hold off on mine.
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MGP

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Reply with quote  #9 
Just wanted to let anyone that was holding out for this new round The 358 MGP-X is dead.  The original 358 MGP still stands on top and is still available
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MDWS

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Reply with quote  #10 
Quote:
Originally Posted by MGP
Just wanted to let anyone that was holding out for this new round The 358 MGP-X is dead the original 358 MGP still stands on top and is still available 

We have a 35 GPC in the lineup that we were hesitant to release with the MGP out there.  But, we will post it up soon and if you would like to be involved please give us a shout as we don't want your work to be unrecognized.

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MGP

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Reply with quote  #11 
Quote:
Originally Posted by MDWS
We have a 35 GPC in the lineup that we were hesitant to release with the MGP out there.  But, we will post it up soon and if you would like to be involved please give us a shout as we don't want your work to be unrecognized.

Mark tried the PM you but it won’t go through something about your email not verified
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MDWS

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Reply with quote  #12 
Quote:
Originally Posted by MGP
Mark tried the PM you but it won’t go through something about your email not verified

Emailing you now.

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