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Old 08-02-2020, 12:44 AM
1&done 1&done is offline
Join Date: Jul 2020
Location: Colorado
Posts: 35
Likes: 11
Liked 24 Times in 12 Posts

You are kind of off the reservation here.
0.355" projectiles are normally used for 9mm & 357sig.
38 S&W is an ancient very low pressure cartridge designed around a 0.361" projectile.
How it will behave if you try to cram a slightly undersized but all copper projectile down its gullet is anyone's guess.
Have you slugged your barrel to see what size it is?
What is your goal here?
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