N160 Temperature Sensitivity

[distantfoe]

Just starting to get things together to start working up a load for a 6x47 lapua. I've collected that H4350 seems to be the powder of choice with this cartridge yet when comparing the barrel life expectantcy to other powders, link below, I'm starting to think about N160. The only thing that concerns me here is that I've never heard of what N160 does with temperature fluctuations. Taking all general situations into consideration, primers, fireformed brass, load density, etc, does any one have experience with this powder under varying temperatures?

http://www.websitetoolbox.com/tool/view/mb/file?username=6mmbr&id=82966

 

[sierra22]

Appr. 1% velocity change per 10 Celsius was a very rough indicator I got from Lapua once.n Cannot vouch for it.

 

[ConnorExum]

Just starting to get things together to start working up a load for a 6x47 lapua. I've collected that H4350 seems to be the powder of choice with this cartridge yet when comparing the barrel life expectantcy to other powders, link below, I'm starting to think about N160. The only thing that concerns me here is that I've never heard of what N160 does with temperature fluctuations. Taking all general situations into consideration, primers, fireformed brass, load density, etc, does any one have experience with this powder under varying temperatures?

http://www.websitetoolbox.com/tool/view/mb/file?username=6mmbr&id=82966

I think you would first have to know the pressure that the chamber is operating at thus the rate of normal expansiion at a specific tempature and then how the increase in tempature from your starting point give the size of the cartridge. I think it is hard question because what is your baseline going to be? And then you have to work out all the specific from that understanding... Where's a chemical engineer when you need one right?

 

[distantfoe]

Appreciate the imput Haven't heard a lot about N160, just wanted to make sure N160 wasn't noted for huge fluctuations due to temp.