what is different between these 9mm bullets ?

[gunis]

sellier & bellot 9mm bullet looks golden, material of jacket is CuZn30 (copper 70%, zinc 30%) brass
other 9mm brand looks like copper jacket, copper is softer than brass.
what is different between these 2 bullets?
which one wear out the rifling ?
thanks

 

[MrBitey]

I found this old thread discussing the issue: https://www.thehighroad.org/index.php?threads/brass-jacketed-bullet-fouling.470057/

Seems like brass jackets are not uncommon, but I'd be interested in any updates as well since I shoot a lot of S&B 9mm.

 

[JDGray]

I would not worry yourself about wearing out your barrel, I would worry about getting some 9mm ammo! Lol

 

[Pat Riot]

Deja Vu...

 

[PO2Hammer]

Don't they make steel jacketed (bi-metal?) 9mm ammo?
Military stuff IIRC.
I wouldn't worry about brass.

 

[Peakbagger46]

I could be wrong, but 9mm barrel life should be practically unlimited regardless of the jacket material. Just not nearly enough pressure to wear rifling down or cause throat erosion.

 

[gunis]

I could be wrong, but 9mm barrel life should be practically unlimited regardless of the jacket material. Just not nearly enough pressure to wear rifling down or cause throat erosion.

9mm barrel life should be practically unlimited regardless of the jacket material, good news

 

[Meeks36]

Buy it while you can. Its getting harder by the day to locate it.

 

[gunis]

Buy it while you can. Its getting harder by the day to locate it.

thanks