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 Post subject: 180gr Speer GS length
PostPosted: Sun Apr 12, 2020 12:01 pm 
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Joined: Sun Aug 20, 2006 11:16 am
Posts: 674
Location: Alaska
I need to run thru the calculator to see if it will Stabilize in a 1:12 twist
180gr Speer Grandslam Length .308 Dia ?

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 Post subject: Re: 180gr Speer GS length
PostPosted: Sun Apr 12, 2020 6:51 pm 
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Joined: Thu Mar 01, 2007 4:10 pm
Posts: 5891
Location: British Columbia
Wish I could help, thought I still had some but came up empty. I have a 180 gr Mag Tip which measures 1.28" and I remember the Grand Slam being only a tiny bit longer, at least the old 2 core version was.

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 Post subject: Re: 180gr Speer GS length
PostPosted: Sun Apr 12, 2020 8:14 pm 

Joined: Wed Nov 08, 2006 2:49 pm
Posts: 32928
Location: Northern British Columbia
I'm no help for this. I see Mag-Tip, Hot Cor, spitzer, but no Grand Slam. Used to use them quite a bit, but haven't used them in a long time, now.

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 Post subject: Re: 180gr Speer GS length
PostPosted: Sun Apr 12, 2020 9:05 pm 

Joined: Sun Apr 04, 2010 9:59 pm
Posts: 4413
Midway says they are 1.16 in long.

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 Post subject: Re: 180gr Speer GS length
PostPosted: Mon Apr 13, 2020 2:35 pm 
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Joined: Mon Jul 27, 2015 9:32 am
Posts: 228
Location: US South
JBM also lists 1.16".

http://www.jbmballistics.com/ballistics ... gths.shtml

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