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· CantRe Member
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628 Posts
I use mag primers when loading ball type powder for handgun and rifle.

I don't use them when using extruded powder, they are not needed

Be careful when using the top listed loads, a mag primer can spike the pressure unless your reloading manual shows the mag primer in the load data.

I do use W748 in 223 with mag primers.
 

· Registered
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267 Posts
Use them if you want, just do as ManyFeathers said and drop the load a bit. Shoot a few and check for over pressure. Lots of re-loaders use mag primers.
 

· Registered
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63 Posts
It's very common to see magnum primers or Bench Rest primers used with ball powders. Magnum primers are just a bit hotter than standard primers to ensure 100% ignition with all powders including ball powders.
 
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