.45 ACP - lead fouling at the chamber end?

DaveInPA · April 29, 2008, 06:45 AM

I'm getting considerable lead fouling near the chamber end of my barrel of my 1911. What normally causes this? Too high of a velocity?

Sevens · April 29, 2008, 08:06 AM

Could be that the bullets are too soft, and if driven to fast, they will lead.
Could be that the bullets are undersized, or too hard, or a combination of both, and if not pushed fast enough, will not obturate and seal the bore.

Sure it's lead, yes? Like little strips of lead pieces coming out when you scrub the bore?

DaveInPA · April 29, 2008, 08:32 AM

It sure looks like lead. It's streaks of lead colored material in the bore. Can't think of what else it would be. The bullets in question were only BNH 12. I ordered some with a BNH of 18, we'll see if that helps at all.

Sevens · April 29, 2008, 09:52 AM

You'll know better if it's lead when it comes OUT of the bore in little slivers of lead!

BHN of 12 is not very hard, but .45 is not at all a high pressure round, nor is it particular fast. Shouldn't need ridiculously hard lead bullets for it.

TexasSeaRay · April 29, 2008, 10:01 AM

Hard bullets can lead almost as easily as softer bullets.

It's the size and roundness of the bullet, along with the lube that will affect leading more than BHN.

Jeff

April 29, 2008, 06:45 AM	#1
DaveInPA Senior Member Join Date: January 20, 2008 Location: Berks County, PA Posts: 1,106	.45 ACP - lead fouling at the chamber end? I'm getting considerable lead fouling near the chamber end of my barrel of my 1911. What normally causes this? Too high of a velocity?

April 29, 2008, 08:06 AM	#2
Sevens Senior Member Join Date: July 28, 2007 Location: Ohio Posts: 11,756	Could be that the bullets are too soft, and if driven to fast, they will lead. Could be that the bullets are undersized, or too hard, or a combination of both, and if not pushed fast enough, will not obturate and seal the bore. Sure it's lead, yes? Like little strips of lead pieces coming out when you scrub the bore? __________________ *Attention Brass rats and other reloaders:* I really need .327 Federal Magnum brass, no lot size too small. Tell me what caliber you need and I'll see what I have to swap. PM me and we'll discuss.

April 29, 2008, 09:52 AM	#4
Sevens Senior Member Join Date: July 28, 2007 Location: Ohio Posts: 11,756	You'll know better if it's lead when it comes OUT of the bore in little slivers of lead! BHN of 12 is not very hard, but .45 is not at all a high pressure round, nor is it particular fast. Shouldn't need ridiculously hard lead bullets for it. __________________ *Attention Brass rats and other reloaders:* I really need .327 Federal Magnum brass, no lot size too small. Tell me what caliber you need and I'll see what I have to swap. PM me and we'll discuss.

April 29, 2008, 10:01 AM	#5
TexasSeaRay Senior Member Join Date: November 19, 2007 Location: Texas Posts: 810	Hard bullets can lead almost as easily as softer bullets. It's the size and roundness of the bullet, along with the lube that will affect leading more than BHN. Jeff __________________ If every single gun owner belonged to the NRA as well as their respective state rifle/gun association, we wouldn't be in the mess we're in today. So to those of you who are members of neither, thanks for nothing.

April 29, 2008, 08:32 AM	#3
DaveInPA Senior Member Join Date: January 20, 2008 Location: Berks County, PA Posts: 1,106	It sure looks like lead. It's streaks of lead colored material in the bore. Can't think of what else it would be. The bullets in question were only BNH 12. I ordered some with a BNH of 18, we'll see if that helps at all.