Thread: Federal brass primer pockets??

Originally Posted by grandpamac

Greetings Moa Hunter,
I think the important thing is to have cases that are all the same, not a mixture of new and fired brass. If you are neck sizing then once fired neck sized brass would be preferable when, as you suggest, you are getting to your top loads as these will be closest in capacity to what you are likely to be using in the field. One thing I suggest, and don't see mentioned often, is a robust search through the available manufacturers load data to get an understanding of what should be possible. With respect to Superformance Hodgdon states that the powder does not work with all cartridges but where it does it works very well. They offer load data for a number of cartridges on their web site but by no means all. Something to consider. Perhaps the cartridges they don't offer data for are not well suited for the powder.
Regards Grandpamac.

Is the manufacturers data actual data or modeled ?? I understand what you mean though, a bit of study combined with a chrony should give an idea of what can be expected safely. Re the Superformance, apparently the powder sold to the public is the same burn rate that is used to load 3006 Factory SF loads and hence why it works well with other 06 derived cases.
And with regard to the OP, I am wondering if seating depth or primer choice is affecting chamber pressure and causing or at least contributing to the primer pocket issue ??