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Old August 3, 2009, 12:52 PM   #1
325wsm
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powder ?

I have been using IMR 4350 for reloading and up until now it hasn't been a problem for me to locate it at my local supply store. Could someone tell me which powders are similar if not the same as IMR 4350, so that I can keep an eye out for them. Or if there even is such a thing. Thanks!!
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Old August 3, 2009, 01:18 PM   #2
plainsman456
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Ok here goes;AR2209,H-414,H-4350,W760,TU7000,N204,AA4350,N150andN550.Hopes this helps.Good Luck
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Old August 3, 2009, 01:26 PM   #3
325wsm
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Yes, I does help. Could I ask what they have in common, is it the burn rate? Or what makes them similar. Thanks again
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Old August 3, 2009, 01:37 PM   #4
Shoney
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Even thouogh the burn rates are similar, they can react quite differently in some cartridges. It would be more helpful to know:
weapon you are shooting
what it is chambered for
brass
primer
bullet make and weight
weight of the IMR 4350 charge you are using

Knowing these details may help determine the most suitable substitute. The again each rifle has it's own likes and dislikes.
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Old August 3, 2009, 01:40 PM   #5
Sport45
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Quote:
Or what makes them similar
They all have about the same burn rate as seen in charts like this one. Data is NOT interchangeable for these powders.
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Old August 3, 2009, 02:48 PM   #6
Shoney
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This site:
http://www.gsgroup.co.za/burnrates.html
is about the best I've seen for relative burn rates and it has a prety complete listing of powders.

Since it is a South African site, many of the powders are not available to all reloaders.
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Old August 3, 2009, 04:07 PM   #7
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I have shot a lot of IMR 4350 in various cartridges. Over the chronograph, Accurate Arms 4350 provides identical velocities for the same charge in 6.5 Swede, 30-06, 243, probably some others.

H4350 has required a half grain more powder in the 30-06.

There are two rifle powders with which you will get excellent results in a heck of a lot of cartridges: IMR 4895 and IMR 4350.
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