Quote:
|
Flattened primers, always excessive pressure?
|
Nope. Primers are rarely good indicators of excessive pressure in highpower rifle rounds. I almost always get some flattening no matter what the load in several calibers. If the case isn't difficult to extract and you can't measure any before-after difference in web diameter, you most likely haven't reached what would be an excessive pressure load.
Quote:
|
Could it be due to loose primers?
|
All primers are "loose" when you exert 50,000 psi or more on them.
(IOW, they back out slightly and reseat themselves as the cartridge releases from the chamber. Perfectly normal.)