Delete me

I don’t have a lot of experience with that caliber but it seems like 60 grain is the standard?

Tracer projectiles are usually a lot longer… I’ve also never heard of overruns being filled with lead..

I wouldn’t worry about the wear due to the twist rate. I worry more about steel case/ steel jacketed.

If this is the stuff you’re talking about….

It’s a steel cased, steel jacketed, and corrosive. So yes it’s gonna wear your barrel has nothing to do with a twist rate.
 
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