non-sensitive, but how

[ARlife4me]

what makes powders this way and why don't they make all of them like this? is it an additive that makes them less sensitive to non or is it just.....................?

 

[243winxb]

less sensitive

Single base powder, for the most part, do not contain nitroglycerin, like many double based powders.

The higher percent of nitro in the powder, the faster the burn rate & more sensitive.

A double based powder may be the exact same composition, but different burn rates. The coating applied to the same powder, changes burn rate.

see post 13 here OR Here

Coated ball powders need a Magnum Primer.

Hope this helps. No sure of what your asking.

 

[243winxb]

Another example.

From Website-

Interesting fact: N135, N133 and N130 all have exactly the same grain dimensions, but due to the different surface coating the burning behavior of the powders varies.

A Safety Data Sheet can be Googled for each powder. (SDS)

 

[MagnumManiac]

what makes powders this way and why don't they make all of them like this? is it an additive that makes them less sensitive to non or is it just.....................?

In regard to the Extreme powder line, it is a chemical additive in the 'recipe' when the batch is made. It is not a coating, or an additive after the batch is made.
It is the make-up of the added ingredients.

Cheers.

 

[Core781]

Are you referring to sensitivity the powder has to environmental change?

 

[FEENIX]

what makes powders this way and why don't they make all of them like this? is it an additive that makes them less sensitive to non or is it just.....................?

They are now making temperature-stable double-based powders, i.e., Winchester Staball HD, Ramshot Grand, etc.

 

[FEENIX]

Another example.

From Website-

View attachment 622034A Safety Data Sheet can be Googled for each powder. (SDS)

I asked VV about the temp sensitivity of their powders, and below is what I received ...

 

[243winxb]

GOOGLE- Google answer.

 

[243winxb]

https://apps.dtic.mil/sti/citations/ADA572333
Powder Lot Variations: A Case Study with H4831 - Hodgdon Extreme.

10% difference?


The differents between lots may be more important? Needing to work up a new load when a different lot number is used?

 

[AussieWriter]

GOOGLE- Google answer.View attachment 622147

Not true.
Hodgdon re-labels Australian made powders called the "Extreme" range.
The label even says "Made in Australia" on the bottom strip of the label.