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Old April 21, 2012, 09:42 PM   #1
mohr308
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Need load data for Hornady 180 gn SST

Im looking for the loading data for Hornadys .308 180 grain SST. I have already loaded 20 rounds using other data for similar rounds and powder, I am using IMR 4064

My current loads are:
40.1 gn with my col @ 2.899
41 gn with my col @ 2.800
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Old April 21, 2012, 10:25 PM   #2
Will Lee
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Quote:
Need load data for Hornady 180 gn SST
Im looking for the loading data for Hornadys .308 180 grain SST. I have already loaded 20 rounds using other data for similar rounds and powder, I am using IMR 4064
From the Hornady Manual

180g SST BC=.480 COL: 2.740
IMR4064
34.0 2000fps
35.8 2100fps
37.6 2200fps
39.5 2300fps
41.3 2400fps (MAX)
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Old April 21, 2012, 10:34 PM   #3
mohr308
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thanks, looks like i might be pulling some bullets
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Old April 21, 2012, 10:38 PM   #4
Will Lee
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Here is the complete page.

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Last edited by Unclenick; April 22, 2012 at 11:23 AM.
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Old April 21, 2012, 10:52 PM   #5
Will Lee
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Don't think you need to pull any bullets, your not over max and OAL can vary to achieve the best accuracy. Wish I would have put all this together in one post but setting here tonight having a couple of cocktails and oh well..
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Old April 21, 2012, 11:37 PM   #6
mohr308
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I adjusted my COL to my rifle. I made a dummy load that would self adjust as I chambered it, after 5 times and measurements I took the average. This way I was able to locate my rifling/ogive placement. The only thing Im afraid of, is with the bullet further forward, it may increase my pressure and create problems. Any thoughts?
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Last edited by mohr308; April 21, 2012 at 11:53 PM.
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Old April 22, 2012, 12:11 AM   #7
Will Lee
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I would start about .020 off the lands. Load development is a arduous task and you might find the best load anywhere between .010 to .060 of the lands. Also the max load data in any manual is conservative. I have several favorite loads that are anywhere from .3g to .6g over max. WHAT YOU MUST DO IS KEEP A CLOSE EYE ON THE PRIMERS FOR ANY SIGN OF EXCESSIVE PRESSURE. I capitalized this because it is so import for your safety. The first sign of over pressure will be cratering of the firing pin indentation or ejector marks on your case head.
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Old April 22, 2012, 12:15 AM   #8
mohr308
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i think i just might seat these current rounds to the specified depth (COL), see how they fire. I don't need any serious problems with to much pressure! My next rounds will have lower powder with the longer length. Thanks again!
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Old April 22, 2012, 12:39 AM   #9
Will Lee
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Anytime, glad to have been able to help you.
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