9mm cast bullets--leading?
You are Unregistered, please register to use all of the features of FirearmsTalk.com!    
Firearm & Gun Forum - FireArmsTalk.com > Gear & Accessories > Ammunition & Reloading >

9mm cast bullets--leading?


Reply
 
LinkBack Thread Tools Display Modes
Old 09-12-2011, 04:26 AM   #1
Feedback Score: 0 reviews
 
Join Date: Feb 2009
Posts: 659
Liked 5 Times on 5 Posts

Default 9mm cast bullets--leading?

Hey, I am trying to decide between 124gr and 147gr hard-cast bullets for plinking. My defensive loads are 147gr, plus 147gr loads would allow lower velocities and thus less leading. However, with moderate loads pushing a 124 to probably 1000-1050fps, will I get much leading?

The only reason I ask is 124gr bullets are about $10 cheaper per 1000, and because the slightly higher velocities will allow for a little flatter trajectory.

But, about how fast can I push them before I get any leading?

I will be loading with Unique powder.
Lindenwood is offline  
 
Reply With Quote

Join FirearmsTalk.com Today - It's Free!

Are you a firearms enthusiast? Then we hope you will join the community. You will gain access to post, create threads, private message, upload images, join groups and more.

Firearms Talk is owned and operated by fellow firearms enthusiasts. We strive to offer a non-commercial community to learn and share information.

Join FirearmsTalk.com Today! - Click Here


Old 09-12-2011, 08:07 AM   #2
Administrator
FTF_ADMIN.png
Feedback Score: 0 reviews
 
c3shooter's Avatar
 
Join Date: Feb 2008
Location: Third bunker on the right,Central Virginia
Posts: 19,479
Liked 12842 Times on 5488 Posts
Likes Given: 2100

Default

Depends on how hard the cast bullet, how rough the bore. In general, you should be fine at the velocities mentioned.
__________________
What we have here is... failure- to communicate.
c3shooter is offline  
 
Reply With Quote
Old 09-12-2011, 08:37 AM   #3
Moderator
FTF_MODERATOR.png
Feedback Score: 1 reviews
 
robocop10mm's Avatar
 
Join Date: Jul 2007
Location: Austin,Texas, by God!!
Posts: 11,358
Liked 4053 Times on 2081 Posts
Likes Given: 505

Default

In my experience, the small case of the 9mm causes the velocity of the bullet to go from 0 to significant in a very short distance. The alloy is less important than the OAL. Loading cast bullets as long as possible is the key to prevent leading. Try to load at or very close to max OAL and test to see if the round will chamber w/out contacting the rifling. I have yet to find the bullet design that will not allow this at the max OAL.
__________________
In life, strive to take the high road....It offers a better field of fire.
"Robo is right" Fuzzball
robocop10mm is offline  
 
Reply With Quote
Old 09-12-2011, 02:53 PM   #4
Feedback Score: 0 reviews
 
Join Date: Feb 2009
Posts: 659
Liked 5 Times on 5 Posts

Default

Would it be better to use the 124gr bullets for the extra case capacity, or does it not really matter much?
Lindenwood is offline  
 
Reply With Quote
Old 09-12-2011, 04:29 PM   #5
Feedback Score: 0 reviews
 
Overkill0084's Avatar
 
Join Date: Sep 2010
Location: Weber County, Utah
Posts: 4,775
Liked 3304 Times on 1663 Posts
Likes Given: 452

Default

I run 147gr Missouri Bullets Subsonic. I get some leading but not so much that it is really a problem. I'd rather clean a leaded semi auto than a revolver.
I use Unique (3.6 gr) and there is not a problem with case capacity. Heavy bullet, small charges.
__________________
Cheers,
Greg
MSgt, USAF, Retired
NRA Life Member

The hardest thing to explain is the glaringly evident which everybody had decided not to see. - Ayn Rand
Overkill0084 is offline  
 
Reply With Quote
Old 09-12-2011, 11:34 PM   #6
Feedback Score: 0 reviews
 
lonewolf101's Avatar
 
Join Date: Jun 2011
Location: Wisconsin
Posts: 528
Liked 1 Times on 1 Posts

Default

are 115 good for target shooting? or should I use a heavery bullet?.

hard Cast or soft lead?.
lonewolf101 is offline  
 
Reply With Quote
Old 09-13-2011, 12:48 AM   #7
Moderator
FTF_MODERATOR.png
Feedback Score: 1 reviews
 
robocop10mm's Avatar
 
Join Date: Jul 2007
Location: Austin,Texas, by God!!
Posts: 11,358
Liked 4053 Times on 2081 Posts
Likes Given: 505

Default

Definately hard cast. I shoot 125 gr round nose and round nose flat point bullets cast pretty hard, but not crazy hard.
__________________
In life, strive to take the high road....It offers a better field of fire.
"Robo is right" Fuzzball
robocop10mm is offline  
 
Reply With Quote
Old 09-13-2011, 01:56 AM   #8
Feedback Score: 0 reviews
 
lonewolf101's Avatar
 
Join Date: Jun 2011
Location: Wisconsin
Posts: 528
Liked 1 Times on 1 Posts

Default

thanks robocop10mm! the ones I'm thinking of getting have a hardness of 18 brinel I think.
lonewolf101 is offline  
 
Reply With Quote
Old 09-13-2011, 04:04 AM   #9
Moderator
FTF_MODERATOR.png
Feedback Score: 1 reviews
 
robocop10mm's Avatar
 
Join Date: Jul 2007
Location: Austin,Texas, by God!!
Posts: 11,358
Liked 4053 Times on 2081 Posts
Likes Given: 505

Default

18 BHN should be GTG. Just remember to load long.
__________________
In life, strive to take the high road....It offers a better field of fire.
"Robo is right" Fuzzball
robocop10mm is offline  
 
Reply With Quote
Old 09-13-2011, 04:12 AM   #10
Feedback Score: 0 reviews
 
Join Date: Feb 2011
Location: wyoming
Posts: 1,799
Liked 61 Times on 55 Posts
Likes Given: 15

Default

Your cast bullets should run out at .356. Bullets that run .354 or .355 will lead as gas will pass around the bullet allowing melted lead to stick to the bore. I assume you have slugged the bore and know what size it is. You should run one number over bore size in cast bullets. The 9MM is more difficult with cast than some of the other calibers.
Durangokid is offline  
 
Reply With Quote
Reply

Thread Tools
Display Modes


Similar Threads
Thread Thread Starter Firearms Forum Replies Last Post
Cast Bullets, Obturation patret Ammunition & Reloading 8 11-12-2010 02:35 AM
using cast .357 & .358 bullets in 9mm luger.. m72law Ammunition & Reloading 4 03-15-2010 10:40 PM
Are Hard Cast Bullets Best J&S Custom Bullets Ammunition & Reloading 5 02-16-2010 08:34 AM
cast bullets in 7.62X39 robocop10mm Ammunition & Reloading 4 10-15-2009 04:50 PM
My cast bullets robocop10mm Ammunition & Reloading 1 08-27-2009 08:43 PM