Large variance in Federal SPP 45 acp brass weight

[va_connoisseur]

I was loading some 45 acp brass and decided to weigh a few just to ensure the AP was not overthrowing powder. When I noticed several bullets were over 7 grains difference. Thinking I had double charged the rounds, I broke down 10 rounds (5 "high" and 5 "low"). The bullets and powder was all within 0.1 grains. The difference came from the brass.

The 5 low brass averaged 8.1 grains less than they 5 high brass. (I can get the exact number but I left my logbook back in the load room.) All the brass was once fired Federal Small Pistol Primers cases. So I have a whole host of questions:

• Is this dangerous? (All the rounds have the correct powder charge, 9.2 grains)
• How will this effect performance?
• Is this a sign that the brass is weak and dangerous?

 

[JeffLebowski]

No.
It won’t, with pistols it’s all about your shooting ability which drastically outweighs things like this.
I doubt it.

The number one thing you can do to be a better pistol shooter is dryfire, not worrying about stuff like this.

 

[Fig]

I’m sure there are bullseye shooters who would disagree, but I don’t.

 

[ShtrRdy]

I wouldn't worry about it.

 

[918v]

I was loading some 45 acp brass and decided to weigh a few just to ensure the AP was not overthrowing powder. When I noticed several bullets were over 7 grains difference. Thinking I had double charged the rounds, I broke down 10 rounds (5 "high" and 5 "low"). The bullets and powder was all within 0.1 grains. The difference came from the brass.

The 5 low brass averaged 8.1 grains less than they 5 high brass. (I can get the exact number but I left my logbook back in the load room.) All the brass was once fired Federal Small Pistol Primers cases. So I have a whole host of questions:

• Is this dangerous? (All the rounds have the correct powder charge, 9.2 grains)
• How will this effect performance?
• Is this a sign that the brass is weak and dangerous?

Weak and dangerous?

 

[Va_connoiseur]

Weak and dangerous?

I was curious if the light weigh made them more prone to case failure. I've never a variance like that in rifle brass. I'm fairly new to pistol reloading

 

[918v]

Maybe if it was made in China. FC is good brass. I would weight sort it if I had a ton of it, otherwise I wouldn’t worry about it and just use it for plinking.