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357 Mag PRIMER Question

3108 Views 19 Replies 11 Participants Last post by  zoar
Which primers should I get for loading 357 Magnum?

There are ----

Winchester #7's
CCI #300
CCI Magnum #350
Federal 150
Federal Magnum 155?

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Another vote for following the manual's recipe exactly. In the event you can't get the exact primer called for, you can usually substitute a similar type from another company. That is, a standard for a standard, a magnum for a magnum.

There are many good reasons for using magnum primers, but trying to reduce unburned powder kernels is NOT one of them. Unburned powder is usually the result of using a powder below its best pressure window. Either a heavier charge or a different powder are the correct remedies for unburned powder.
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