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 Winchester 780 Supreme
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IraqVet2003
Advanced Member



USA
1399 Posts

Posted - Nov 17 2010 :  23:27:09  Show Profile Send IraqVet2003 a Private Message  Reply with Quote
Just wondering why this powder is so overlooked? I have used it with great success in the 270 and 25-06. It is a ball powder so it meters like water and doesnt seem to be to temp sensitive. It is also great in cases such as the 243, 300 WM, 7 mag, and others. Thanks Vet

ethmoid1999
Advanced Member



USA
3684 Posts

Posted - Nov 18 2010 :  07:14:35  Show Profile Send ethmoid1999 a Private Message  Reply with Quote
I have wanted to try it but have not had the time.
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68injunhed
Junior Member

USA
40 Posts

Posted - Nov 18 2010 :  18:12:06  Show Profile Send 68injunhed a Private Message  Reply with Quote
Love it in .243. Excellent accuracy and velocity with the 95gr. bullets.
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Bobo7mmmag
Advanced Member

2587 Posts

Posted - Nov 18 2010 :  20:51:27  Show Profile Send Bobo7mmmag a Private Message  Reply with Quote
Just finish my last can of Win "Magnum Rifle Powder" last winter. Worked excellent in .243 Win with Nosler 95 grain Ballistic Tips. Figure 780 Supreme should close to it.

Bobo
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fishstan2
Advanced Member



USA
2314 Posts

Posted - Nov 19 2010 :  10:57:45  Show Profile  Send fishstan2 a Yahoo! Message Send fishstan2 a Private Message  Reply with Quote
Vet, I have 3 bottles that I am planning on using in a 338-378 WBY, belive it or not it shows better velocity than Retumbo or RL-25 with a 200 grain bullet. We will see Stan

WILLIAMS, STANLEY W.
CSM JBLM
"I SAY SHOOTEM FROM LONG RANGE"

Edited by - fishstan2 on Nov 19 2010 10:59:27
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Paul B
Advanced Member

3341 Posts

Posted - Nov 19 2010 :  11:15:46  Show Profile Send Paul B a Private Message  Reply with Quote
I wouldn't get too all fired up about W780. bout the time you get a decent load worked up "BIG W" will discontinue it just like they did wirh W780BR, (a different powder) W785, WMR and WXR.
If you take notice, niether the Speer, Sierra or Lyman manuals ever showed any data for WMR, just as one example. If you can't find data, why buy it? AFAIK, only some of the Nosler and Hornady manuals ever had data for WMR, a powder that I liked enough to buy of a store's entire supply supply of 8 pound cans when I learned it was being discontinued. Winchester said it was especially made for teh .270 Win. and .300 Win. mag. and frankly, they weren't lying. It also worked quite well in the .243, 6MM Rem., 257 Robt.,and .280Rem. For some odd reason, it does not work worth spit in the 30-06. Even what load data I could find left more confusion than anything else.
If Winchester's history with their slowest burning ball powders holds true, W780 will be dropped in a couple of years. Oh well, I have enough WMR on hand that my .270 and .300 mag. will never go hungry from lack of powder. Bullets and primers maybe but not from powder.
Paul B.
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Hockeynick39
Advanced Member



USA
3778 Posts

Posted - Nov 19 2010 :  15:00:03  Show Profile  Send Hockeynick39 an AOL message Send Hockeynick39 a Private Message  Reply with Quote
Been enjoying the data on this powder. Was also getting ready to implement it with some .243 loads. Then I saw that Hodgdon will be releasing the Superformance and LeveRevolution powders in January. Both of these are ball type powders as well. The Superformance according to some burn rate charts is just ahead of the Winchester Supreme 780. The other thing to note is that the pressures of the Superformance are also lower than the Supreme 780. I may get a pound of both powders because one never knows what one's gun likes.
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Hockeynick39
Advanced Member



USA
3778 Posts

Posted - Nov 30 2010 :  13:53:21  Show Profile  Send Hockeynick39 an AOL message Send Hockeynick39 a Private Message  Reply with Quote
Picked up a pound of the Supreme 780! Only thing I need now is a good recipe for the .243 win. 100 gr SGKs and 75 gr Varminters. When January comes I will be making up loads with the Superformance powders with the same bullets for a comparison.
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IraqVet2003
Advanced Member



USA
1399 Posts

Posted - Nov 30 2010 :  14:27:57  Show Profile Send IraqVet2003 a Private Message  Reply with Quote
I just got done loading up starting loads for my custom 25-06 and shot 1 ragged hole 4 shot group with 54 gr of Win 780 Suppreme.


Edited by - IraqVet2003 on Nov 30 2010 20:01:46
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IraqVet2003
Advanced Member



USA
1399 Posts

Posted - Nov 30 2010 :  14:54:25  Show Profile Send IraqVet2003 a Private Message  Reply with Quote
Hockeynick39 for the 75 gr bullets Hodgdons reloading magazine doesnt list 780 but the 100 gr is 45.7 to start and 47.5 max. Hope this helps Vet
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Hockeynick39
Advanced Member



USA
3778 Posts

Posted - Nov 30 2010 :  19:38:32  Show Profile  Send Hockeynick39 an AOL message Send Hockeynick39 a Private Message  Reply with Quote
Thanks Vet. It does help some and I found out why the 75 grain isn't listed for this powder, or any of the lighter grained bullets for that matter. The powder is generally used for the heavier grain bullets. The Superformance powder will be out in January, this will be used for the lighter grained bullets.
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Bobo7mmmag
Advanced Member

2587 Posts

Posted - Nov 30 2010 :  21:43:54  Show Profile Send Bobo7mmmag a Private Message  Reply with Quote
Excellent work Vet.

Have fun,

Bobo
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