Looking for help with pressure signs

mark222

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Kitchener ON
I've been working on loads for a Kimber Sonora in 25 06 and have flattened primers on pretty much everything that I feed it. Loads are all under recommended maximums, some are at minimum, scale is accurate. Cases have been trimmed to recommended length, bullets seated around .020 off the lands, cartridges are neck sized, still chamber and extract easily. I'm using regular Federal primers, for powder I have tried h4831, h4831sc and h414 along with a variety of bullets. Any ideas why I'm seeing pressure signs?
 
Flattened primers may or may not be indicative of higher than normal pressure.
Any chance of photos?
 
Flattened primers may or may not be indicative of higher than normal pressure.
Any chance of photos?

Thanks, I just decapped and resized the batch I shot yesterday, I'll take pics of the next batch. Hopefully it's normal, they don't look too bad to me. I'm using the same primers in a .243 and they arent flattening so it made me wonder if I was missing something.
 
Federal is the softest primer on the market, switch to Cci or Winchester (I wouldn't based on all the threads with blown primers due to several bad batches of thin primers) primers to stop the flattened primers. But as others have said it's not the main sign of high pressure loads.
 
Federal is the softest primer on the market, switch to Cci or Winchester (I wouldn't based on all the threads with blown primers due to several bad batches of thin primers) primers to stop the flattened primers. But as others have said it's not the main sign of high pressure loads.

Thanks, I figured the loads were okay, but thought I would ask. I'll switch after this batch is gone, just bought 1,000. I didn't know Federal's were soft.
 
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