primer temp

[jlaz90]

Ok so what i have learned from doing as much research as possible, the biggest difference that i have found between the use of large rifle primers and large magnum rifle primers is that under cold temperatures, the large primers might not ignite the powder as well. so i guess my question is does anyone know what temp the primers start having the weather effect them? i was given a ton of large rifle primers and would prefer to be able to use them now to reload since i cant find any magnum primers anywhere.

 

[338RUM runner]

Depends on how much powder you are trying to light off. How much and what Cal.

 

[jlaz90]

338rumrunner 75 gr of reloader #19 for a 185gr sierra bullet in .300wm

 

[338RUM runner]

Try this CCI Ammunition - Primer Details. CCI said when you get to 20 deg you need to start looking to Mag primers. I would use the reg primers that you have, keep them warm in your pocket if you need to. Sure hopes this helps you.