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30/30 Winchester question
Discussion regarding the reloading of ammunition and tuning of loads for accuracy
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Grant
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Joined: Aug 28, 2006
Posts: 325
Location: Grande Prairie, Alberta

PostPosted: Wed Sep 13, 2006 7:20 pm    Post subject: 30/30 Winchester question Reply with quote

I just picked up a model 94 as a camp gun and a cheep fun shooter. I'm looking at the reloading info in the Lyman book and the Lee book and I'm getting some conflicting info.

Lyman says:
150 grain jacketed
IMR4064 starting load 29 gr 2168 fps 27000 cup
max load 32 gr 2313 fps 39,400 cup

Lee says:
150 grain Jacketed
IMR4064 starting load 33.8 gr no speed or cup
max load 37.5 gr 2350 fps 37800 cup

Now, common sense tells me to error on the side of caution and go with the Lyman info, but I thought maybe someone else might be able to shed some light on this.
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Handloader
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Joined: Aug 22, 2005
Posts: 1032
Location: Phoenix, Arizona

PostPosted: Wed Sep 13, 2006 8:29 pm    Post subject: Re: 30/30 Winchester question Reply with quote

Testing methods vary as well as firearms being used. Yours is but one example of many that illustrate the need to expand the number of loading manuals you have. In fact, a good case can be made to acquire all the manuals available and compare data before loading. Your conclusion to be conservative in the starting loads has merit.
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Grant
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Posts: 325
Location: Grande Prairie, Alberta

PostPosted: Wed Sep 13, 2006 9:31 pm    Post subject: Re: 30/30 Winchester question Reply with quote

It's true about the differences between reloading manuals, but this one really stands out. One book saying it's ok to start with a load that is substantially higher than another says is max. Probably not a big deal with a 30/30, but could be scary if you were loading for a 375 H&H with a discrepancy that large.
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skb2706
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Joined: Apr 10, 2006
Posts: 269

PostPosted: Thu Sep 14, 2006 6:29 am    Post subject: Re: 30/30 Winchester question Reply with quote

I wouldn't consider anything from a Lee loading manual as valid information. His data is concucted using his 'theories' and speculation as opposed to measuring equipment and fact. Reference other loading manuals, any free info. from the net, lean to the conservative side and use the Lee loading manual for a leg prop on a crooked tripod.
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shootist
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Joined: Dec 30, 2005
Posts: 73
Location: Lackawaxen,PA

PostPosted: Thu Sep 14, 2006 7:22 am    Post subject: Re: 30/30 Winchester question Reply with quote

Hi Grant....usually the differences in manuals occur when an older cartridge,such as the .30/30 is compared. Some manuals carry data based on which GUN the cartridge is used. For example, the .30/30 can be used in an original black powder cartridge based rifle, a handgun, or a modern rifle with strong bolt action. In addition, some manuals carry back the copper crusher method of measuring pressure....some use piezo sensor data. Basically, you have to know the strength of your weapon, then load accordingly.
These are the reasons why we have a reference library of manuals that span the age of our pieces...10/4?


Regards,
SHOOTIST
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Grant
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Joined: Aug 28, 2006