IMR 4227 vs. H4227

[kingemandigger]

Im gonna be reloading for the 45 colt and am really interested in IMR 4227. seems like a good powder. However, Hodgon's reloading book only mentions H4227. Just wondering if the two are currently the same or different.

[Griff]

Go to Hodgdon's On-line data.

[Buck Elliott]

IIRC, Hodgdon (which owns the IMR trademark) phased out the IMR version, because there was no difference between them.

[harry]

IIRC, Hodgdon (which owns the IMR trademark) phased out the IMR version, because there was no difference between them.

So why do the load books show IMR4227 as hotter that the H4227?
45 colt
250 gr XTP
H4227 max load = 25.7
IMR4227 max load = 24.2
All 5 of my load books show about the same.

[Hayseed]

IMR powders tend to run hotter over the spectum.

You never want to be working up a load with one and switch to the other in mid stream .

Burn rates also differ within same man. in different lots .

[El Chivo]

I heard they were phasing out all the IMR's where there were duplicate numbers, and keeping the H's.

However some people are still finding the discontinued ones.

I believe the H's were re-done to be "extreme" powders, not affected by heat or cold.

[Buck Elliott]

Ok.. Ready to get completely confused..?

Hodgdon's Mike Daly wrote, that Hodgdon's was discontinuing H-4227, replacing it with what was IMR-4227, which would be retagged as H-4227..

H-4198 was modified at about the same time to be one of Hodgdon's "Extreme" powders..


Both the above powders were to be manufactured in Australia...

[El Chivo]

Both the above powders were to be manufactured in Australia...

does that mean the bullets will come out spinning in the opposite direction?

[6pt-sika]

It's my understanding from our distributers that they stopped making H4227 and you can still get IMR4227 .

[6pt-sika]

Hogdon owns the Winchester name as far as gun powders concerned now .

I was told many years ago by a factory rep that H110 and W296 came outta the same machine etc . he told me the only thing they did when they changed from one to the other was change the containers !

And now since they're in the same shaped containers all they have to change is the frickin label !

[6pt-sika]

I don't much care what they do as long as they have something with the following on the labels !

IMR4064
IMR4350
IMR4831
IMR4007
IMR8208
IMR4198
IMR3031

H322
H335
H4198
Varget
H4831SC
Benchmark
H4350

W748
W296

[piller]

Contact Hodgdon and ask about the powder by the lot number. They have always given me the answer within a reasonable time. I was informed that all new 4227 in the plastic bottles should be used according to the current data. I can find it online at Hodgdon't website. There was a difference at one time. I guess in the interest of making a more profitable company, one version was dropped.

[gundownunder]

Hodgdon's Mike Daly wrote, that Hodgdon's was discontinuing H-4227, replacing it with what was IMR-4227, which would be retagged as H-4227..

H-4198 was modified at about the same time to be one of Hodgdon's "Extreme" powders..


Both the above powders were to be manufactured in Australia...

If they are going to make it here it would be made by ADI. The ADI equivalent to 4227 is AR2205.
I'm using it at the moment for my 357 silhouette loads, but am not really happy with it due to how much crud it leaves in the barrel. The only reason I'm still using it is because it gives consistent loads, is not temperature sensitive, and I can't get LilGun over here to improve velocity further.

[kingemandigger]

Have you had any forceing cone erosion using lil'gun (great powder, but burns really hot). I've been wary about using it because of horrer stories heard via other posts, reports, etc.