| Con |
| (.333 member) |
| 04/02/11 06:06 AM |
Re: 416 ruger popping primers
|
Quote:
Would it be possible that the heat from firing a lot of loads- 40 odd rounds over maybe 45 minutes through the rifle would cause the cartridge to heat up and then create higher pressure?
Not really ... most of the chemical components used in powders are not very good heat conductors eg the graphite coating. When talking temperature sensitivity, its important to remember its not ambient temperature but the temperature of the powder column itself (ie. conditioned temperature) and that takes awhile to come up to ambient temperatures or greater. It can happen though as when ammunition is left in a car etc... or allowed to sit for awhile in a hot chamber. But during the course of firing I doubt it'd matter.
Compression of the powder column due to a slipping crimp is a very real possibility. Mark and measure a loaded round and let it sit in the bottom of the magazine whilst shooting for say 10-20 rounds ... then compare it afterwards.
Cheers...
Con