Barrel for cast 9mm? Any to stay away from

taymag · December 21, 2016, 07:01 PM

I know some guns have a tight throat, etc, I need a threaded barrel and want to make sure there aren't any to stay away from for cast

noylj · December 22, 2016, 02:29 PM

Polygonal rifling can be a problem if you don't watch for leading.
Some folks complain about leading of compensator and suppressor.

RC20 · December 22, 2016, 03:58 PM

Harder cast lead usually not a problem but always keep an eye on it

I do that regardless with my Sig barrel.

m&p45acp10+1 · December 22, 2016, 05:55 PM

Hardness for 9mm is a moot point. Size it what keeps the lead from building up for the most part. Some powder choices can lead to more lead build up with bullets that do fit. Hi Skor 800x, and Blue Dot are two I can think off the top of my head that have done so with other calibers that I reload for. Titegroup caused the same issue for me with cast lead in .45 auto, and .44 special. I have not tried it in 9mm, and I am using Win231 with good results so I am going to stick with what is working.

If you can slug the bore. You get to know what the grove diameter is which will help greatly. If in doubt use a 125 grain .38 special bullet. See if it will chamber. Work up your load from the starting load to keep from going over on pressure.

chris in va · December 23, 2016, 02:26 AM

You can cheaply powdercoat and shoot them through anything.

**Unclenick** · December 24, 2016, 04:16 PM

You can powder coat the bullets cheaply, but I've never heard of a study of them in polygonal rifling to show whether or not the coating can strip in them. Do you know of one?

Chainsaw. · December 24, 2016, 09:11 PM

Not a study but my own experience, powder coat will NOT come off of home cast 9mm bullets out of a factory glock barrel.

December 21, 2016, 07:01 PM	#1
taymag Member Join Date: June 27, 2015 Posts: 79	Barrel for cast 9mm? Any to stay away from I know some guns have a tight throat, etc, I need a threaded barrel and want to make sure there aren't any to stay away from for cast

December 22, 2016, 05:55 PM	#4
m&p45acp10+1 Senior Member Join Date: May 3, 2009 Location: Central Texas Posts: 3,947	Hardness for 9mm is a moot point. Size it what keeps the lead from building up for the most part. Some powder choices can lead to more lead build up with bullets that do fit. Hi Skor 800x, and Blue Dot are two I can think off the top of my head that have done so with other calibers that I reload for. Titegroup caused the same issue for me with cast lead in .45 auto, and .44 special. I have not tried it in 9mm, and I am using Win231 with good results so I am going to stick with what is working. If you can slug the bore. You get to know what the grove diameter is which will help greatly. If in doubt use a 125 grain .38 special bullet. See if it will chamber. Work up your load from the starting load to keep from going over on pressure. __________________ No matter how many times you do it and nothing happens it only takes something going wrong one time to kill you.

December 24, 2016, 04:16 PM	#6
Unclenick Staff Join Date: March 4, 2005 Location: Ohio Posts: 21,743	You can powder coat the bullets cheaply, but I've never heard of a study of them in polygonal rifling to show whether or not the coating can strip in them. Do you know of one? __________________ Gunsite Orange Hat Family Member CMP Certified GSM Master Instructor NRA Certified Rifle Instructor NRA Benefactor Member and Golden Eagle

December 24, 2016, 09:11 PM	#7
Chainsaw. Senior Member Join Date: September 12, 2015 Location: Issaquah WA. Its a dry rain. Posts: 1,774	Not a study but my own experience, powder coat will NOT come off of home cast 9mm bullets out of a factory glock barrel. __________________ Just shoot the damn thing.

December 22, 2016, 02:29 PM	#2
noylj Senior Member Join Date: October 22, 2007 Location: Between CA and NM Posts: 860	Polygonal rifling can be a problem if you don't watch for leading. Some folks complain about leading of compensator and suppressor.

December 22, 2016, 03:58 PM	#3
RC20 Senior Member Join Date: April 10, 2008 Location: Alaska Posts: 7,334	Harder cast lead usually not a problem but always keep an eye on it I do that regardless with my Sig barrel.

December 23, 2016, 02:26 AM	#5
chris in va Senior Member Join Date: December 26, 2004 Location: Louisville KY Posts: 13,806	You can cheaply powdercoat and shoot them through anything.