A good read on temperature and pressure
- Thread starter 1899
- Start date
- Location
- West Quebec
It sure is an interesting read ..will have to reread just to get a sense of what effect it will have on my shooting..
Given the way hunting goes - if your shooting is mostly hunting - then probably very little. Interesting none-the-less, especially when you consider the effect of temperature of the barrel vs. changes in powder charge.
Our American 7.62 sniper ammunition was loaded with RL15 and worked in the US, BUT when in Iraq and Afghanistan the RL15 was temp sensitive and the powder was changed to the single base powder IMR-4064.
So what works in Canada might not work in Arizona USA in July.
Here in your Canadian forum I keep reading posts on how magnum primers are not needed, BUT the military tests the ammo in extreme heat and cold and the ammo must stay within acceptable pressure and velocity standards within these temps.
So what works in Canada might not work in Arizona USA in July.
Here in your Canadian forum I keep reading posts on how magnum primers are not needed, BUT the military tests the ammo in extreme heat and cold and the ammo must stay within acceptable pressure and velocity standards within these temps.
- Location
- West Quebec
Mostly bench but unless I'm hammering them down range at a great clip I would think it does not have a big effect.
It would have been interesting to see some test results for accuracy or point of impact in the different temperatures. My method is way more simplistic then the study attached to this thread. I have found that even with factory loads, some cartridges shoot better when it's cold (below freezing) and some shoot better in warmer temperatures. I use each cartridge when the weather is colder or warmer.
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