Imr 4227 vs h4227 ?????

[Parman]

I have a question. Can anyone tell me the difference in IMR 4227 and Hodgdon H4227 powder or are they the same for reloading purposes?

I have some IMR 4227 for reloading and as I look at some of the loads for S&W 500 it says to use the H4227 as one of my options.

I have several other powder options for my 500 but just courious about the IMR 4227 vs H4227.

 

[buck460XVR]

THE new IMR4227 is the old H4227 renamed. The old IMR4227 is now discontinued. So there is only one now being currently produced. Old H4227 and newer IMR4227 data is what you want.



IMR4227 is my go to powder in my .460.

 

[Catpop]

To add to MY confusion haha, how do you tell the new IMR 4227 from the old IMR 4227 if two cans are sitting side by side on the counter?
Tx, catpop

 

[627PCFan]

One will be manufactured in Canada

 

[USSR]

The old IMR4227 was made in Canada; the new IMR4227 is made in Australia.

Don

 

[7mmb]

Some new IMR4227 I recently purchased is labelled as made in Canada. I bought a pound of IMR4227 labeled made in Australia in 2012. Hodgdon must have brought the Canadian production facility back online making 4227 after the latest shortage. The last glut of 4227 was made in Canada.

Hodgdon's reloading data center still shows the same exact numbers for H4227 and IMR4227 in their 357 Magnum rifle loads.

 

[Parman]

All three pounds I have are made in Canada on the labels.

 

[Jim Watson]

Hodgdon doesn't bring facilities back online, they don't own the powder mills.
I suspect that either they just quit ordering 4227 from IMR/Canada or that IMR/Canada did not want to go to the trouble of making it in the volume that Hodgon could handle.

 

[Sunray]

"...The old IMR4227 is now discontinued..." Funny how Hodgdon doesn't list H4227 on their site, but IMR's site lists 4227.
Expro Technologies Inc.(powder maker in Valleyfield, Quebec.) may be gone.

 

[Jim Watson]

If Expro is gone, who is making the rest of the lineup in Canada?
The plant is now owned by General Dynamics, or was the last time I looked. As is St Marks Powder, ex Olin/Winchester in Florida.

Hogdon is playing fast and loose with branding, but there are relatively few actual powder manufacturers.

 

[buck460XVR]

"...The old IMR4227 is now discontinued..." Funny how Hodgdon doesn't list H4227 on their site, but IMR's site lists 4227.
Expro Technologies Inc.(powder maker in Valleyfield, Quebec.) may be gone.

Maybe my first post was confusing to you. The old IMR4227 is no longer made. The new IMR4227 on the shelves is the just the old H4227 rebranded and the powder branded as H4227 no longer distributed. IOWs, you can still get IMR4227, but it is just the old H4227 formula, and that formula or any other, is no longer distributed under the H4227 brand.

A decade or so ago, after noticing similar load recipes for IMR4227 and H4227, I contacted Hodgdon and asked if IMR4227 and H4227 were indeed the same powder and thus, one could interchange load data. Hodgdon at that time answered back that they were not the same powder and load data could not be interchanged. There a few years back I submitted the same question to Hodgdon and got a reply similar to what I stated in my first post. I believe Hodgdon did this to try and avoid the confusion between two very similar powders with very similar names that were never meant to be a direct substitute for each other like H110/W296. Doing so tho, they just created more confusion.

 

[USSR]

Hodgdon bought the IMR rights and name, not the plant. As previously stated, the current IMR4227 is the old H4227 relabeled. Hodgdon did this because IMR4227 sold much more powder than H4227 ever did. It is now made in Australia, not Canada. If you recently bought some IMR4227 that says made in Canada, then it is old stock.

Don

 

[7mmb]

Old stock? In this current powder market where every pound sells as soon as it hits the shelves? Doubt it.

 

[HOWARD J]

I have the old H4227 & imr4227
also the new imr4227
I been using all of them using data in the latest reloading books for imr4227.
Don't feel any difference in shooting them

 

[USSR]

Old stock? In this current powder market where every pound sells as soon as it hits the shelves? Doubt it.

Well, current IMR4227 sure isn't coming out of Canada.

Don

 

[7mmb]

All I know is my current IMR4227, with a late 2014 date code, is labelled made in Canada. A pound of IMR4227 I bought in 2012 was labelled made in Australia. The Canadian stuff works as well as the Australian stuff and I'm gonna load it up and shoot it

 

[BBDartCA]

The original H4227 was made by Nobel in Scotland.

 

[USSR]

All I know is my current IMR4227, with a late 2014 date code, is labelled made in Canada. A pound of IMR4227 I bought in 2012 was labelled made in Australia.

That's really odd. I bought 8# last year and the label states "Manufactured in Australia, Packaged in USA".

Don