H4350 or IMR4350 for 260 Rem

[oldfatguy]

H4350 seems to be a favorite here for 260 loads. In the reloading manuals IMR4350 is favored. So is there any real difference other then the slightly different burn rates? Getting either is a bit of a challenge these days so two choices might help.

OFG

 

[armorpl8chikn]

They are NOT the same powder by a long shot. I too have to hunt for H4350 data. Go with H4350. Try Hogdons website. Lots of data there for most calibers.

 

[ChrisGarrett]

Can't speak to IMR 4350, but I've loaded up a lot of 260 Rem with H-4350 and AA-4350 and both of those powders are pretty close in character.

Chris

 

[bward]

H4350 is much less temp sensitive. Stick with it.

 

[capnswervon]

I was told by a gun shop owner on Tuesday that now that the same company owns and produces both brands that they a 100% interchangeable. Right down to the comment that they stop the run half way through and just put in a different label pack and continue on. I did not "buy" it or buy it but it made me think. On Hodgdons website, they do not list much load data for the IMR 4350. Anyone else hear this recently?

The Capn'

 

[Joop]

I was told by a gun shop owner on Tuesday that now that the same company owns and produces both brands that they a 100% interchangeable. Right down to the comment that they stop the run half way through and just put in a different label pack and continue on. I did not "buy" it or buy it but it made me think. On Hodgdons website, they do not list much load data for the IMR 4350. Anyone else hear this recently?

The Capn'

Absolute Bullshit! You can look at the two, side by side and a three year old could tell you that they are different powders. Wow!

 

[Temp9]

Absolute Bullshit! You can look at the two, side by side and a three year old could tell you that they are different powders. Wow!

This. H4350 has excellent temp stability, but IMR4350 has piss poor temp stability (relatively speaking). AA4350 is somewhere between them. They're all different and by no means directly interchangeable.

 

[FLIGHT762]

Absolute Bullshit! You can look at the two, side by side and a three year old could tell you that they are different powders. Wow!

Correct, IMR powder is manufactured in CANADA. H-4350 os manufactured in AUSTRALIA by ADI (Australian Defense Industries) Two completely DIFFERENT powders manufactured in DIFFERENT manufacturing facilities that have close to the same burning rate. That gunshop owner is wrong and should be kicked in the nards for spreading bullshit!

The only correct thing is the IMR brand, Winchester brand and Hodgdon brands of powders are all SOLD/MARKETED/ PACKAGED by Hodgdon.

 

[Hawk45]

This. H4350 has excellent temp stability, but IMR4350 has piss poor temp stability.

IMR is WAY more temp sensitive. http://www.hodgdon.com/smokeless/extreme/page2.php#top

That being said, as long as you load when there are hotter conditions and test for changes in velocity as temps cool, you can make range cards for the different temps that should be pretty close.

 

[lead ƒarmer]

IMR is WAY more temp sensitive. http://www.hodgdon.com/smokeless/extreme/page2.php#top

That being said, as long as you load when there are hotter conditions and test for changes in velocity as temps cool, you can make range cards for the different temps that should be pretty close.

I have never seen those graphs before, thanks for posting

Sent from my POS phone using Tapatalk 2

 

[keith h]

H4350 is the best for the 260!!

 

[leadbullet]

H4350 is the best for the 260!!

can't improve on the truth

 

[scudzuki]

I have never seen those graphs before, thanks for posting

Sent from my POS phone using Tapatalk 2

Which is why I bought some AA4350 when I could not find H4350.

Joe

 

[Capt Academy]

I use H-4350 mostly in my 260 and it shoots great! However, I also use H-4831sc and it also works very well. If fact, I just use some in my 6 Creedmoor and shot well in a tactical match with it today. It's not as fast as H-4350, but it will get the job done with a few more grains.

 

[long range newbie]

my 260 doesn't really like h4350 it seems to shoot better with rl-19

 

[Heman]

Try N150 or N160 you'll be happier and get better barrel life as they are cooler burning, also more consistent as VV makes their own nitrocellulose whereas the other manufactures buy theirs.