AAAARHHHH Stupid situation....

Steyrtac

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I primed my .308 Winchester cases with large rifle MAGNUM primers...

Did I have to shoot the primed brass or can I use them?

Thank you for your understanding...
:redface: :redface: :redface: :redface: :redface: :redface: :redface:
 
I load nothing else in all calibres using lg rifle primers. The deal is that I work up my loads from scratch using these primers.

Magnum primers were originally developed for US military as cold weather primers for service cartridges.

They run a bit hotter, so if you were going to load these cartridges up to near factory based on non-magnum primers, don't. Back off about 1 grain and you should in most cases, be pretty close. 308 win is a very forgiving cartridge.

Just my opinion, but I prefer not to load any cartridge to the max. If I want more oomph, I go to a bigger or higher pressure round.
 
Oooooo!

Thanks!
I use H322 for the 308 and I think that I never loaded a round to any maximum load on any manual I own.

I use my magnum for my large capacity calibers, and it's the first time I take the wrong primers. I noticied the mishap after 80 peices of brass where primed.

Can I hope to be accurate with those rounds? I want accuracy, not only safety!
 
I shoot mostly target rifles. there are no issues with using Magnum primers ; any time that you switch any component in a load, you should back off a bit, whether it be primers, cases bullets, or even different lots of the same branded powder. If you chronograh the same load with regular versus magnum primers it is likely that the difference will be there , but it is not a big deal. The only time it might drive you crazy is if you mixed the two types!
 
As someone else suggested, use a ball powder as mag. primers are recommended, H-322 is not ball powder, so get a can of W-748 or W-760 or H-380 or BLC-2 and use those primed cases.
 
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