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Offline Fishnclifff

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New Powder
« on: June 19, 2013, 09:40:28 PM »
Anyone have experience with Winchester 760 powder?

Thinking of loading 30.06 and 30-30 with it.
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Offline dontgetcrabs

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Re: New Powder
« Reply #1 on: June 20, 2013, 09:59:37 PM »
I have used it a lot in 22-250, very high speed and good accuracy, but also quite temp sensitive.
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Offline Fishnclifff

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Re: New Powder
« Reply #2 on: June 21, 2013, 06:27:45 PM »
Thanx.
Were you refering to storage?

I can fix that if you were.
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Offline dontgetcrabs

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Re: New Powder
« Reply #3 on: June 21, 2013, 07:58:57 PM »
Not storage, outside shooting temp. I found there was a big pressure spread from winter shooting to summer shooting. 
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Offline Heredoggydoggy

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Re: New Powder
« Reply #4 on: June 21, 2013, 08:16:21 PM »
Some powders are more temperature stable than others.  I've found that the Ramshot powders are quite tolerant of temperature extremes, and the newly re-introduced IMR powder, due to the demand of many benchrest shooters, 8208XBR is very temperature stable.  I use it almost exclusively in my 20 LBC, (6.5 Grendel necked down to .204), and the .17's.  Don't know how it would work in larger calibers--I don't shoot them.  :dunno:
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Offline shrek

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Re: New Powder
« Reply #5 on: June 21, 2013, 08:17:46 PM »
Been using 760 for over 20 years now, whats new?
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Offline shrek

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Re: New Powder
« Reply #6 on: June 21, 2013, 08:24:40 PM »
Must be 780?
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Offline Fishnclifff

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Re: New Powder
« Reply #7 on: June 22, 2013, 09:30:46 AM »
Quote from: shrek on June 21, 2013, 08:17:46 PM
Been using 760 for over 20 years now, whats new?

It will be a new powder for me. Nuthin else is available.
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Offline Fishnclifff

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Re: New Powder
« Reply #8 on: June 23, 2013, 10:27:46 PM »
Got the new powder today. Loaded up some test rounds.
Previous reloads stuck in the chamber after firing or wouldn't chamber at all. So I picked up an OAL gage after reading other posts.
Load data says C.O.L. 3.25. OAL gage reads 3.33..
Loaded 4 rnd at 3.31,4@3.25, 4@3.26, 4@3.27, and 4@3.28.
My brother and I have the same guns, Rem. 710, 30-06.
We both agree the 3.31 length shot more accurate in both guns.

Why would the load data be so far shorter?

All the rnds chambered and extracted perfect.

I have noticed that I have a bunch of brass that won't feed completely in my sizing die. They go about 2/3 in and stick. Others go full length.

Any help is appreciated.
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Offline carpsniperg2

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Re: New Powder
« Reply #9 on: June 23, 2013, 10:51:09 PM »
I have used it before but like said it does seem to be temp sensitive.
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Offline Fishnclifff

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Re: New Powder
« Reply #10 on: June 23, 2013, 10:58:34 PM »
Definitely a hotter load than H4895.
I loaded 150 gr PSP bullets for the tests. pushed by  54 gr- the recommended start load.
It felt like I was shooting my 180 gr factory rnds.
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