H4350 and IMR 4350 the same?

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13 August 2005, 06:12

Blob1

H4350 and IMR 4350 the same?

I know that different powder manufacters with the same numbers are different in many ways. I heard the Hogeson bought out the powder department fron Dupont and that H4350 and Imr-4350 was the same. Any truth to this?

13 August 2005, 06:42

cal30 1906

Hodgdon did buy the rights to sell IMR powders.
The powder is still different, They made no changes to it that I have heard.

The IMR powder is sold in the Hodgdon
plastic wide mouth bottles.
But they still have the IMR label.
You can still substitute the Hodgdon powder for a load that calls for IMR4350...But if you substitute the IMR4350 for a load that calls for the Hodgdon 4350 you will probably get
higher preasures at the upper loads.

They are still differnt burn rates.
The Imr is faster.

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13 August 2005, 07:47

Cheechako

And the AA4350 is just a tad faster than IMR.

Ray

14 August 2005, 02:19

Blob1

I knew they had been different and it didn't make sense for a powder company to make two of the same with names. So that clears that up! Thanks

14 August 2005, 04:41

fredj338

I have found H4350 a bit slower than IMR4350. H4350 is a good choice for your .260 w/ bullets 120-140gr.

14 August 2005, 04:46

Blob1

Yeah Fred I have a big bunch loaded up with 120 grain bullets and H4350. Will be Monday before I can try them out.