9mm leading/advice?

[cricco]

Hi folks. I have been loading up some 9mm boolits for my Glock 17. I am using a Lone Wolf barrel which slugs at .355. My boolits are cast using a Lee TL356-124-2R. I am shooting them as cast at .356-.357. I have lubed these with Alox, though it seems to be a light coat of lube. I tried both air cooling and water dropping boolits, and I keep getting serious leading with these boolits. The leading seems to be throughout the legth of the barrel, but not as bad in the chamber end of the barrel. This leads me to believe that the lube is to blame. Does this sound like a lube issue, as I suspect? Or am I missing something? Thanks guys.

[462]

Cricco,
I agree.

[bigboredad]

I would say it is a lube issue. the only load that mule snot works for me is for my wife's .357 vaquero moving very slow. try smearing some regular lube on a a few boolits by hand and see how they do

[Cherokee]

I don't use the Lee stuff, but I have heard people coat the bullets more than once. I always use the conventional designed bullets with a regular lube groove.

[Doble Troble]

What's your load? How fast are you shooting them?

Everything else sounds about right. The Lee lube isn't the best, but it should be good enough to prevent severe leading when the bullet fits the bore.

The problem with the nine is that it's a high-pressure cartridge. If you approximate jacketed loads with cast you're going to lead. 1000 fps and below should keep you in the non-leading zone. Using a fast pistol powder might cause problems too.

It's finicky compared to a 45 ACP, but doable if you don't expect too much velocity, and keep the pressure down.

[mooman76]

What are your loads and what is your loading method? Factory crimp die?

[462]

Thanks, mooman, I forgot about the Lee Factory Crimp Die being a possible cause.

[casterofboolits]

I worked with a Dayton Ohio police armoror who had the first Mod 17 in the area. He was bound and determined to shoot cast bullets in the Glock even tho the manual said not too.

We settled on an H&G 125 grn TCFPPB sized .357 on top of 6.5 grns of Bluedot. Lube was Magma blue.

Excelent accuracy with no leading in the stock barrel. One of my friends has put in excess of 20,000 rounds thru his stock Glock 17 in the last twenty years.

[cricco]

What are your loads and what is your loading method? Factory crimp die?

Using 5.9 grains of Ramshot True Blue. I am getting 1084 FPS (yes I used a chronograph).

Loading these using Dillon dies on a 550b.

[Tinbullet]

I have a Glock 19 that I have had excellent luck with shooting either Lee 356-125-2R 125 gr single groove round nose or a Lyman 356242 120 gr two groove bullets at about 14 BHN. Both bullets are sized at either .355 or .356. I load either with 4.5 grains of Unique and have chronographed these loads at between 1100 to 1200 FPS. I have had no leading at all. The only bullet that I have had any leading with was a RCBS 124 09124CN sized at .355. The lube I use may not be a factor in stopping leading in the stock Glock barrel. I did find that Lyman 358242 90 gr bullets did not cycle the action properly until I got to a 5 grain load of Winchester 231. Don't stop testing:

[jbremount]

I am thinking you need to use harder ( water quenched ) bullets sized at least .001-.002 over the bore size. Probably bullets sized .357 - .358 should do it. I am using bullets sized to .358 and almost no leading. What size are your bullet dropping out the mold?

[HeavyMetal]

The issue here is not size, he's got a .355 barrel and boolits are .357. or hardness, provided he's quenching clip on WW's, so the lube is on the raggady edge of total failure.

The answers are simple, slow down ( lighter load) double up on the LLA ( what a waste of time) or move up to a better lube boolit design.

Now if the OP has the time he might get a couple sticks of Carnuba Red and melt it and pour into a container with his TL boolits in it. Then do the Kake Cutter thing size and shoot.

This will tell him if a lube change will fix his problem with minimal cash loss.

Once he determines this he can adjust his loading technique to suit his useage.

Other things can cause his leading, like the FCD die Mooman mentioned, combined with a real fast powder.

Because the leading covers the whole barrel front to back I will still think lube and, if he's using the FCD die, a complete deletion or re-adjustment of it's use!