IMR 4895 or Hodgdon 4895?

rcmodel · Jul 31, 2013

That is not what the ADI table says at all.

What is says is:

NOTE: These tables are only approximate, showing equivalent values within about 5%.

And there are many 'equivalent' powders shown on that chart I would highly question anyway.

rc

sfchemist · Jul 31, 2013

rcmodel said:
That is not what the ADI table says at all.

What is says is:

And there are many 'equivalent' powders shown on that chart I would highly question anyway.

rc

The ADI chart says exactly that. The Chart description reads: "ADI Powder Equivalents."

Like all powder manufacturers there is always a qualifier listed---which is why I provided a link so readers could read the entire listing to form their own opinions.

USSR · Jul 31, 2013

According to ADI Powders they are the same:
http://www.adi-powders.com.au/handlo...quivalents.asp

That is nothing more than a burn rate chart. It does not indicate that anything is made by the same manufacturer or is of the same composition, and only indicates what powders may be suitable for similar use.

Don

sfchemist · Jul 31, 2013

USSR said:
That is nothing more than a burn rate chart. It does not indicate that anything is made by the same manufacturer or is of the same composition, and only indicates what powders may be suitable for similar use.

Don

It may in fact be a burn rate chart...but every single burn rate chart I have seen is labeled as such. This chart doesn't even use the word Burn Rate anywhere.

It is my understanding that ADI makes/made H4895 and IMR4895 so I thought they would sort of know if they were the same or not. My containers of H4895 say "Made in Australia*Packaged in USA" but I couldn't find ADI mentioned on the label.

morcey2 · Jul 31, 2013

sfchemist said:
It may in fact be a burn rate chart...but every single burn rate chart I have seen is labeled as such. This chart doesn't even use the word Burn Rate anywhere.

It is my understanding that ADI makes/made H4895 and IMR4895 so I thought they would sort of know if they were the same or not. My containers of H4895 say "Made in Australia*Packaged in USA" but I couldn't find ADI mentioned on the label.

According to that logic, Varget, IMR-4064, and AA2520 are the same powder, even though AA2520 is a double-base ball powder and the other two are single-base extruded powders.

And 2520 is made in Belgium. :scrutiny:

Matt

ArchAngelCD · Jul 31, 2013

caster said:
H4895 and IMR4895 are now identical per Dave at Hodgdon.

Before Hodgdon bought out IMR, IMR 4895 was a DuPont product, made in Canada. Since Hodgdon bought out IMR, you will notice Hodgdon has discontinued H4895 and now sells only IMR4895.

What is currently sold as IMR4895 is actually made by ADI in Australia, imported by St Marks in Florida, same as H4895 has always been.

Hodgdon marketing gurus decided the brand name IMR4895 was more in demand, and some have always considered H4895 a knockoff so the marketing name H4895 was eliminated from the marketing lineup, repackaged in (purple label) IMR4895 packaging and the rest is history.

Before anyone jumps in and disputes this, keep in mind DuPont (Canadian) manufactured IMR4895 is NOT the same as ADI manufactured (Australian) H4895. IMR4895 manufactured in Australia (by ADI) is. Call Hodgdon, ask for the lab and verify for yourself.

Check the origin of your powder by checking the label on the container, and as always work up ANY load instead of blindly using data from any unverified source.

Are you sure you're not thinking of 4227?

sfchemist · Jul 31, 2013

Matt, yes you are correct. But the OP was discussing 4895 so my responses addressed that issue only. My comments are observations only and were not meant to be critical of anyone's opinion.
Wayne

243winxb · Jul 31, 2013

Just read the MSDS. http://www.hodgdon.com/msds.html :banghead:

Clark · Jul 31, 2013

Hodgdon claims more temperature stability for H4895 vs IMR4895.
http://www.hodgdon.com/smokeless/extreme/page2.php#top

Kombayotch [moderator at Canadian gun nutz where you need to join to see] has verified some of Hodgdon's claims for temperature stability of extreme powders [and poor temp stability of other powders] by taking an oven and a freezer to the range. He has plotted those data.
While not a complete verification, it comprises a great set of spot checks.

I was sitting on much of my original purchase of 32 pounds of of IMR4895 when I switched to H4895 last year.

Jim Watson · Jul 31, 2013

Yup.
Examination of the chart will indicate the likely true doubles.

For example, AR2206H really IS H4895. It is slow lot AR2206 made for Hodgdon.

I would be willing to bet that all the Hodgdon flake or extruded equivalents of AR powders are really the same thing, just under the respective brand names.

You have to be careful, though, there are some Spherical equivalents tabulated that are pretty approximate. AR2206 certainly is not BlC2.

caster · Jul 31, 2013

blarby said:
Apparently, Dave at hodgdon has a different tune today :

"There is no truth to any rumor that H4895 is going to be discontinued. We continue to market both H4895 and IMR 4895 and they are not the same powder.

Dave Campbell
Customer Service
Hodgdon Powder Co.
6430 Vista Drive
Shawnee, KS 66218
913-362-9455 Ext. 117
[email protected]"

Well that amazes me to no end. I called Hodgdon last October before all the panic set in because all I could find local was IMR4895, COO listed as Australia. Every other jug I had of IMR4895 was in the old IMR packaging and listed Canada as COO. I called to see what data to use for Australia IMR4895 thinking if it isn't the same stuff, my loads may need a full work up again.

I've been using H4895 data and the (Australia) IMR4895 works great.

Thanks for checking again. I know what I was told and still have the details of our conversation written in my load journal. Maybe I was completely mistaken, but I take pretty good notes and I was absolutely focused on our conversation.

it's always good to get info from the source.

Edited to add: My apologies to anyone who was confused by my previous post, obviously my information was outdated or just wrong and a big thanks to blarby for getting the right info from Hodgdon today.

Sunray · Aug 1, 2013

"... IMR4895 considered an 'extreme' powder..." Nope. It's the powder that was used during W.W. II. IMR and H 4895 are so close it really doesn't matter which one you use. Velocities are a wee bit higher with the IMR. The data is absolutely not interchangeable.
IMR4064 gives more consistent accuracy than either.

joed · Aug 1, 2013

In these times I'd take whatever I could find. Prefer IMR only because when I started loading Hodgdon did not have a version. Around here IMR is easier to find too.

Comrade Mike · Aug 1, 2013

I developed loads for both (same with both 4350's) in case I can ever find one and not the other. They perform pretty similarly for me.

IMR 4895 or Hodgdon 4895?

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