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retumbo powder......pressure signs

 
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  #8  
Old 01-25-2007, 07:41 AM
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Join Date: Nov 2006
Posts: 180
Re: retumbo powder......pressure signs

I am interested in that quick load program Where do I get that? How much is it?
Thanks,
T
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  #9  
Old 01-25-2007, 08:09 AM
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Join Date: Dec 2006
Posts: 42
Re: retumbo powder......pressure signs

Your shooting a 7mm Rem Mag and not a Rum correct? That velocity seems pretty high for a 168 in a Rem Mag. Somteimes you can reach max velocity or pressure before book. That being said, the Hodgdon manual shows 73.5 for a 162 and 68 for a 175. If it's a Rum it should be wanting more like 95 grains or so...
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  #10  
Old 01-25-2007, 09:01 AM
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Join Date: Sep 2001
Location: medford wi usa
Posts: 273
Re: retumbo powder......pressure signs

Here's where you get it....

http://www.neconos.com/

It also comes with a great ballistic calculator. I used to think it was only slightly better than crossreferencing loading manuals. BUT...they keep upgrading the burn rates and have added tons of cartridges....to the point I think they are more accurate than alot of manuals.....escpecially the way all the bullet and powder people are taming down the charge wts because of "Lawyerism"!!
I now find it worth every penny and use it quite a bit.
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  #11  
Old 01-25-2007, 05:58 PM
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Join Date: Jan 2007
Posts: 114
Re: retumbo powder......pressure signs

correct, I am shooting a Rem mag. at 5125 ft. elevation

Thanks guys... loaded some at 71 down to 68 that I am gonna go try out.... I'll let ya know the results.

think I will toss the cases with the slight pressure marks.
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  #12  
Old 01-26-2007, 11:21 AM
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Join Date: Sep 2001
Location: medford wi usa
Posts: 273
Re: retumbo powder......pressure signs

I wouldn't toss em just because of the marks. I've seen factory weatherby that got the marks with factory loads and the cases lasted another 3-4 loadings. I'd resize them and see how easy the next batch of primers seats.
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  #13  
Old 01-26-2007, 11:56 AM
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Join Date: Jan 2007
Posts: 114
Re: retumbo powder......pressure signs

I'll try that..... thanks guys.... Yet to shoot the new loads.... Wind is crazy around here lately !!!
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  #14  
Old 01-26-2007, 01:30 PM
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Posts: 114
Re: retumbo powder......pressure signs

Hodgdon Powder Company
Cartridge Load Recipe Report - 1/26/2007 7mm Remington Magnum
Load Type: Rifle Powder: Retumbo

Cartridge Information
Case: Winchester Barrel Length: 24"
Twist: 1:9.5" Trim Length: 2.490"
Primer: WINCHESTER LR

7mm Remington Magnum
Cartridge Load Data Starting Loads

--------------------------------------------------------------------------------
Maximum Loads

--------------------------------------------------------------------------------

Bullet Weight (Gr.) Powder Bullet Diam. C.O.L. Grs. Vel. (ft/s) Pressure Grs. Vel. (ft/s) Pressure
140 GR. NOS PART Retumbo .284" 3.250" 71.0 2955 46,100 CUP 75.0C 3107 49,400 CUP
150 GR. NOS PART Retumbo .284" 3.270" 68.0 2818 43,300 CUP 72.5C 2998 50,300 CUP
160 GR. NOS PART Retumbo .284" 3.290" 65.0 2756 43,200 CUP 69.5C 2915 49,900 CUP
162 GR. HDY SPBT Retumbo .284" 3.290" 69.0 2787 43,900 CUP 73.5C 2963 50,500 CUP
170 GR. SIE RN Retumbo .284" 3.270" 71.0 2752 44,200 CUP 75.0C 2899 50,700 CUP
175 GR. NOS PART Retumbo .284" 3.290" 64.0 2650 45,400 CUP 68.0 2800 51,200 CUP
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