So much for 4350 temp sensitivity

[Deleted member 10043]

http://www.modernmuzzleloader.com/forum/viewtopic.php?t=6712

His data is good based on weighted averages. He doesn't say what the temp was but he posted in late July in Alabama so it was hot. I've been using AA4350 lately due to ample supply. You would think AA and IMR would swing higher in MV due to the heat. Personally, I'm not experiencing any material temp sensitivity differences between AA, IMR, and Hogdon. The burn rate between AA and IMR are close enough but Hogdon is always just a little less powder needed. They don't call it 4350 for nothing.

 

[spife7980]

I dont see anything about temperature sensitivity in the link. Just that H4350 gave higher velocities than the other 4350s in his test cases.

 

[Deleted member 10043]

Dat right. I be figurin' da slower two would be faster in dat heat. It don't seem like it is but It do.

 

[Deleted member 113831]

http://www.modernmuzzleloader.com/forum/viewtopic.php?t=6712

His data is good based on weighted averages. He doesn't say what the temp was but he posted in late July in Alabama so it was hot. I've been using AA4350 lately due to ample supply. You would think AA and IMR would swing higher in MV due to the heat. Personally, I'm not experiencing any material temp sensitivity differences between AA, IMR, and Hogdon. The burn rate between AA and IMR are close enough but Hogdon is always just a little less powder needed. They don't call it 4350 for nothing.

I have found that the powders all kind of even out as far as temp sensitivity for a given load when the temp gets above 80 degrees. I have always treated H4350 as being faster than IMR4350.

But AA4350....that's a real mess. Back before Western Powders bought the AA line of powders, it was made by diverse plants. At different points it was made in the Czech Republic by Lovex, in Israel by IMI... and if I remember correctly, it was even made in China for a bit.

Since 2009 when Western bought it, it has been made in Canada at the IMR plant by General Dynamics. And it is way slower than the other 4350's. It is actually much closer to 4831 in burn rate. I am currently using 58.8 grains in a 30-06 under a 190 SMK and am about a full grain from pressuring out. My go to 4831 load is 59 grains.

 

[Deleted member 10043]

That's what I'm talking about how do they get away with using 4350 on the label like they do. There has to be some logical common denominator.

 

[Deleted member 113831]

That's what I'm talking about how do they get away with using 4350 on the label like they do. There has to be some logical common denominator.

That would be convenient wouldn't it?

 

[Deleted member 10043]

It secret shit.