Need help, Anyone have the Hornady reloading book?

[h20fowl]

Looking for the max load data for 300 WSM, Hornady 180gr SST, W760. also what primer would you recommend regular or magnum?

 

[HOWARD J]

56.1-67.5 max-WIN 760 POWDER for Win Short Magnum 180sst
Prime: Win WLRM FOR 180sst

 

[h20fowl]

Thanks Howard that's what I was looking for.

 

[NCsmitty]

h20fowl, you need to verify that load, as www.hodgdon.com lists 59gr as a start load for Win760, and a maximum of 62.5gr with a 180 gr bullet in the 300 WSM.
That's a rather large discrepancy.


NCsmitty

 

[h20fowl]

NCsmitty,

I thought that 67.5 was a bit much. Before i posted this question I had checked Hodgens site. here is the max loads that i have collected...

Hodgens/Winchester 62.5gr
Sierra 65.0
Speer 65.0
lyman 63.2
Hornady 67.5 ??? kinda sticks out don't ya think??

So what source is a guy to trust??
Of course following safety procedures and work my way up. Here is the kicker. if I started at a 10% reduction with 67.5 being MAX I would start at 60.75gr.

This is what i am thinking of doing let me know what you guys think.
60.75 = -10%
62.1 = -8%
63.45 = -6%
64.12 = -5%
64.8 = -4%
65.47 = -3%
66.15 = -2%
66.82 = -1%
67.5 = 100%

The first few are jumps of 2% just to check for pressure signs. It has been evident to me that the 300 WSM does not like down loading.

Should i even bother working up to the 67.5 or use one of the others as max?

 

[HOWARD J]

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From the book................................

 

[h20fowl]

Thank you Howard for posting that! Your thoroughness is appreciated.

I guess this can easily lead in to the discussion of overly conservative load data due to company's legal departments!

 

[rg1]

From Winchesters 2003 Reloading Guide for 300 WSM
--All Win components
All loads are maximum and you should start 10% lower and work up
150 gr BST (CT) Ballistic Silvertip Win 760--71.0---3250fps--60000 psi
165 FS 9CT) Failsafe----------- Win 760--68.5---3130-----63300
168 BST (CT)------------------- Win 760--69.8---3090----60300
180 SP------------------------- Win 760--66.9---2960----60500
180 FS (CT) Failsafe------------ Win 760--68.0---2940----60200
Reduce 10% and work up!
CT-Combined Technology

 

[h20fowl]

rg1,

Thank you for the info. I have a friend an old timer who taught me how to reload and he has many reloading books from far back as the 50's. From what i have seen many of the new manuals are conservative with max loads.

 

[hometheaterman]

If it's that much higher than any other published data though, I think I'd be hesitant to try it even though that is what the manual says.

 

[JimKirk]

Reloading books are GUIDES, not the Bible. What may shoot "hot" in your rifle may in fact be "mild" to "warm" in mine. That is the reason each of us should work up loads rather than just taking the reloading books as fact. If you want to see some facts, get your chronograph out and compare the velocity that your "book" says and compare it to what you are really getting out of your rifle. Then you will be able to see the Light as far as guides go.

Use the "books" as GUIDES and work your loads up accordingly, learn the pressure signs and all will work well.

Jimmy K

 

[NCsmitty]

As JimKirk mentioned, A work up is necessary to find the parameters of that powder combination, in your rifle.

I would also point out that the load page that Howard J displayed, shows quite a difference between H414 and Win760 loads, although www.hodgdon.com shows that they are identical powders from ADI, the Australian powder company.

So work up your loads, and always be watching for signs such as a sticky bolt lift. Most often your mid range charges will give you the best accuracy.



NCsmitty