brass jacket bullets

[maddmaxx11]

Anyone ever use brass jacket bullets? How do they compare to copper? I really love the RMR bullets but with a 3 or 4 month wait I am thinking about trying the Brass jacket stuff that RMR now has. I hate to have to work up a new load but what the heck, it will give me something to do. Is the brass harder than copper and harder on the barrel than copper?

 

[mcb]

I have run tens of thousands of Montana Gold brass jacketed 180gr 40 caliber CMJ bullets through two SA XDs and a S&W 610 with no issues.

 

[243winxb]

GOOGLE- Brass-an alloy consisting essentially of copper and zinc in variable proportions.
Two copper alloys are prevalent in modern jackets, gilding metal (copper:zinc ratio of 95:5) and commercial bronze (copper:zinc ratio of 90:10).

The OPs question has me wondering what the RMR bullet JACKETS are made of? I dont see anything on the website?

Everyone seems to like them.https://www.thehighroad.org/index.php?threads/thoughts-on-rmr-bullets.847718/

 

[243winxb]

9mm 124 Gr. Full Metal Jacked Round Nose Bullets (Brass Jackets) *NEW*

https://www.rmrbullets.com/shop/bullets/pistol/9mm-355/9mm-124-grain-fmj-new-round-nose-1000-count/

Owner- https://www.thehighroad.org/index.php?members/longdayjake.66795/

 

[Walkalong]

Not a bad price considering

 

[LiveLife]

Anyone ever use brass jacket bullets? How do they compare to copper?

I have run tens of thousands of Montana Gold brass jacketed 180gr 40 caliber CMJ bullets through two SA XDs and a S&W 610 with no issues.

I have shot brass jacketed Montana Gold and Remington Golden Saber for decades and load them same as copper jacketed bullets.

When I shot USPSA in the 90s, there was some discussion that slightly harder brass jacket may wear out the rifling in barrels faster than copper jacket to affect accuracy but over the years, especially with factory barrels that are surface hardened (Like Glock, M&P, etc.), discussions died down. I sold my Glock 17 after 120,000 rounds were shot through and concerned with loss of accuracy but another match shooter bought it and after testing for accuracy, happily continued shooting USPSA matches.