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Old September 22nd, 2013, 10:18 PM #1
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IMR 4350...

So trying to get a hunting load for my .243 and from what I've read varget isn't the powder of choice, but H4350 seems to do the trick. Anyone have a line on some? I can trade varget for a few lbs of it.

Last edited by Speed3; September 22nd, 2013 at 10:32 PM. Reason: Meant to type H4350
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Old September 23rd, 2013, 09:23 AM #2
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First IMR 4350 and H4350 are not the same powder. Similar use, but NOT the same.

H4350 has been harder to find than Varget recently. But a bunch hit the stores a few weeks ago. Keep looking.

Sorry, I don't use it. I probably would have picked some up just in case, but the credit cards were already smoking.
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Old September 23rd, 2013, 10:14 AM #3
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A while back, I picked up a pound of IMR 3031 and I THINK IMR 4350, when I was working up loads for my .45-70 Gummint.

I've not opened/used either, since I found what I was looking for, with Reloader 7.


I'll check tonight, to see IF that canister is IMR 4350, IF you want.
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With regard to shooting Black Powder:
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Originally Posted by K31 01/06/2015 @ 6:59 p.m.
There's nothing quite like standing on the firing line, stuffing your ramrod down a waiting black hole, slathering your balls with grease, and then having as many as eight nipples.

With regard to reloading:

Quote:
Originally Posted by Buff7mm 04/28/2016, 07:32 PM
Dealing with stuff that can cause catastrophic failure in your firearms, and injury or death to you and those in close proximity. I treat every step as if my life depends on it.
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Old September 23rd, 2013, 10:38 AM #4
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If you're loading 100 gr pills for your .243 the powder of choice is IMR 4350 as it was always accurate in our .243's. I sold our remaining stock of IMR 4350here as wished still had some would eagerly trade for Varget.
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Old September 23rd, 2013, 12:16 PM #5
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IMR4350 temp sensitive though? My understanding that H4350 is not as sensitive, like varget?
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Old September 23rd, 2013, 12:27 PM #6
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Last I checked Varget is neither position nor temperature sensitive, since it is a stick powder. It is a bit of a pain in progressive loaders.

It is usually the ball powders that are more temp sensitive, but not by much. H335 is very versatile, and hard to find.
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Old September 23rd, 2013, 04:40 PM #7
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I have used H-4350 in 243. It shot great but no where near as good as IMR-4831. H-380 also works well. Gonna be trial and error like anything else.
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Old September 23rd, 2013, 09:12 PM #8
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Stick (extruded) powders are typically single based and less temperature sensitive than double based powders. But even within stick powders, some are less temp sensitive than others. Varget is one of Hodgdon's Extreme powders, which are supposed to be less temp sensitive.

Most ball powders are double based, and tend to be more temp sensitive than the extruded powders.

Vihta Vouri powders can be triple based, which results in better very low temperature performance. Which you might expect with them coming from Finland.

Single/Double/Triple based is how many different explosive chemicals are in the mix. Single based are typically only nitrocellulose. Double base is nitrocellulose and nitroglycerin. Triple adds nitroguanadine.
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Old September 23rd, 2013, 09:42 PM #9
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I want something that is not tempature sensitive...so I can develope loads in July and hunt in November.

H4350 seems to be it. And yes 100gr SGKs, BR2s in lapua brass.
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Old September 25th, 2013, 05:58 AM #10
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Quote:
Originally Posted by Song Dog View Post
If you're loading 100 gr pills for your .243 the powder of choice is IMR 4350 as it was always accurate in our .243's. I sold our remaining stock of IMR 4350here as wished still had some would eagerly trade for Varget.
+1

IMR 3031 is great for lighter bullets. Superformance works well too.
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