After I came into posession of a large quantity of 357 brass cases I set aside the 38spl cases I'd been using without any issues.

My 357 target load is 4.0gr of Titegroop under a 158gr hard cast bullet.

I also use 44 magnum cases in 44 magnum revolvers.I found no issue using 44spl cases prior to acquiring a good supply of 44 magnum cases.

Use what you have and develop loads using them.

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NEVER GIVE UP YOUR GUN