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Joined: Apr 2012
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Campfire Regular
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OP
Campfire Regular
Joined: Apr 2012
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Is it double or single based ? It's a spherical powder. Composition on wikipedia says it's double based but since it's discontinued there's no SDS on Hogdons website.
40 to 70 percent nitrocellulose
10 to 60 percent nitroglycerin kinda confusing
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Joined: Nov 2013
Posts: 28,996 Likes: 28
Campfire Ranger
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Campfire Ranger
Joined: Nov 2013
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Dunno offhand, but it’s the schizzle for 160gr NPs in the .270. Have a bit in one bottle, and one unopened.
I’ll try to remember to check an old Hodgdon book tomorrow.
What fresh Hell is this?
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Joined: Sep 2004
Posts: 8,237 Likes: 3
Campfire Outfitter
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Campfire Outfitter
Joined: Sep 2004
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I’ll try to remember to check an old Hodgdon book tomorrow. You may be confusing Supreme 780 with H-870 (I've done it before)
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Joined: Apr 2012
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Campfire Regular
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OP
Campfire Regular
Joined: Apr 2012
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I’ll try to remember to check an old Hodgdon book tomorrow. You may be confusing Supreme 780 with H-870 (I've done it before) I don't think so....I mean would you still have an unopened container of 870 laying around ? 
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Joined: Sep 2009
Posts: 1,290
Campfire Regular
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Campfire Regular
Joined: Sep 2009
Posts: 1,290 |
I have some W780 here - it's a double based powder. It replaced Winchester WXR (RL22)
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Joined: Apr 2012
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Campfire Regular
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OP
Campfire Regular
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I have some W780 here - it's a double based powder. It replaced Winchester WXR (RL22) Just found out ball and spherical is double based
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Joined: Nov 2013
Posts: 28,996 Likes: 28
Campfire Ranger
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Campfire Ranger
Joined: Nov 2013
Posts: 28,996 Likes: 28 |
I’ll try to remember to check an old Hodgdon book tomorrow. You may be confusing Supreme 780 with H-870 (I've done it before) I absolutely am not.
What fresh Hell is this?
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Joined: Sep 2004
Posts: 8,237 Likes: 3
Campfire Outfitter
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Campfire Outfitter
Joined: Sep 2004
Posts: 8,237 Likes: 3 |
I’ll try to remember to check an old Hodgdon book tomorrow. You may be confusing Supreme 780 with H-870 (I've done it before) I absolutely am not. I'm curious as to what you found for Win Supreme 780 in your older Hodgdon Manual 
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Joined: Nov 2013
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Campfire Ranger
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Campfire Ranger
Joined: Nov 2013
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The 2014 book places it between MRP and Superformance on the burning speed chart, and describes it as a magnum spherical powder useful in the .243, .270, and .300 WinMag, and used in many Winchester factory loads.
I load 56gr with 160 NPs in the .270, which has dumped three, maybe four deer on their asses pretty convincingly for my son and me. Presumed velocity is between 2700-2800, accuracy good. I may have used some in the .243 as well. The listing shows it to give the highest velocity for that bullet, at the time of course. RL26 might be better, but I have one box of the partitions left, so that’s where my jug will be used when the loads on hand are exhausted.
What fresh Hell is this?
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Joined: Sep 2004
Posts: 8,237 Likes: 3
Campfire Outfitter
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Campfire Outfitter
Joined: Sep 2004
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I reckon "older" is a relative term. My older Hodgdon manual is circa 1987. Supreme 780 was even born yet  I must be old . . . .
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Joined: Nov 2015
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Campfire Ranger
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Campfire Ranger
Joined: Nov 2015
Posts: 19,277 Likes: 2 |
Back in the day I used a lot of Winchester 785. It worked very well in the 243 and even in the 270.
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Joined: Apr 2012
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Campfire Regular
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OP
Campfire Regular
Joined: Apr 2012
Posts: 1,383 Likes: 2 |
The 2014 books places it between MRP and Superformance on the burning speed chart, and describes it as a magnum spherical powder useful in the .243, .270, and .300 WinMag, and used in many Winchester factory loads.
I load 56gr with 160 NPs in the .270, which has dumped three, maybe four deer on their asses pretty convincingly for my son and me. Presumed velocity is between 2700-2800, accuracy good. I may have used some in the .243 as well. The listing shows it to give the highest velocity for that bullet, at the time of course. RL26 might be better, but I have one box of the partitions left, so that’s where my jug will be used when the loads on hand are exhausted. RL 26 might be better. RL25 did very well with my 300 Weatherby, so I’ll load my 300 up with 780 soon.
Last edited by anothergun; 10/12/23.
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