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federal primers
geeguy
Member Posts: 1,047 ✭
I may be behind the times, but I ran out of primers for my .243 load and when I asked for Federal 210LR I was told I couldn't get any. And it turns out that may be right. I haven't been able to buy any every place I asked and the only intranet offering was for local pickup in Washington state. Anyone know why?
Semper Fi
Semper Fi
Comments
One of the topics indicates there is a threat of Federal primers creating a mass detonation when used in a progressive machine like a dillon, as well as from a tray like a Lee.
I have always used Winchester or CCI (except Federal 209's for shotgun if the price is right)so I am not aware of the issue.
Has anyone experienced this? I've been reloading for almost 50 years and never heard of this happening with any modern primer.
Any stories?
The Lee Auto-Prime accident did indeed involve Federal primers. Luckily it happened after several dozen cases had been primed, leaving only about half of the 100 he'd started with. It sent plastic shards and primer cups in all directions. He was wearing safety glasses and suffered no injury other than nicks and small punctures on his hands and chest. But his wife darn near killed him!
Federal is the only US primer maker to use "basic" priming mix. All the others use "normal" mix. (The difference refers to the Ph of the mix, but the chemical chain is different.)
Basic mix is more sensitive, which makes it more reliable, and also has production advantages. But it also makes it more susceptible to "fratricide" where one primer going off will set off any nearby primer as well.
For the end user, that means that Federal primers have to be isolated from each other during shipping - and ideally during use as well. That's one reason why Lee says to not use Federal primers in their Auto-Prime unit: up to 100 primers touch each other in the tray. If you manage to set off the primer being seated ...
Yes, it has happened, and the lawsuit is why Lee prints that warning.
Do note that fratricide can occur with "normal" mix primers as well, especially in tube-style automatic priming systems on progressive loaders. But of the two types, the "basic" mix is MUCH more susceptible to it.
I wondered about the extra wide spacing between primers in the boxes.
I thought their sensitivity was due to a softer cup.