Severe lead fouling issue

Picked up the Lewis Lead Remover kit this afternoon and of the 30% that remained it removed around 20% of it.
It took around 30 pulls.

The kit does have merit, so I will be keeping it.

Only had vinegar on hand so decided after to submerge the barrel in vinegar for a few hours. Took it out after, scrubbed the last remaining tough spot with a brush and voila, all gone :D

Tomorrow will pick up some peroxide and try the 1/2 mix after this weekend.

Getting there ;) With the toughness of some of the lead in there it may have to be a combination of a few procedures.
 
I have a ton of mercury, 80 odd pounds, so if you absolutly can't get it out. Send me your barrel and i'll clean it up and send it back. We gotta support each other so just pay postage and I'll do it
 
I use "Kroil" ( a penetrating oil) for general bore cleaning, and it removes lead very effectively. It seems to "creep" under the lead, loosening it, and it comes out in strips. Kroil is tough to find, but lasts a long time.
 
Once you are done, you will have to find out the cause/s of the problem, bullets that are too hard and too small in dia. will do it, and bevel base designs can contribute, when combined with hardness/dia. problems.
 
Picked up the Lewis Lead Remover kit this afternoon and of the 30% that remained it removed around 20% of it.
It took around 30 pulls.

The kit does have merit, so I will be keeping it.

Only had vinegar on hand so decided after to submerge the barrel in vinegar for a few hours. Took it out after, scrubbed the last remaining tough spot with a brush and voila, all gone :D

Tomorrow will pick up some peroxide and try the 1/2 mix after this weekend.

Getting there ;) With the toughness of some of the lead in there it may have to be a combination of a few procedures.

Have you tried the Chor Boy method? If not try it. I have the Lewis for my revolver but find the Chor Boy more effective and frankly quicker.

Have you measured the diameter of the boolits you were using yet?

Take Care

Bob
 
Have you measured the diameter of the boolits you were using yet?

Take Care

Bob

Will do that this evening and post it up

you will have to find out the cause/s of the problem

I believe I have, as the area which is giving me all the problems is around the 4 ports on the inside of the barrel and forward of them to the end of the muzzle. But only on the top portion where the ports are.
 
Hi,

Where do you source your Chor Boy? Seems US only?

Sincerely,
on-ca

Safeway sells it as most supermarkets do as well. all it is is 100% copper pot scrubbers. Just make usre it is 100% copper and not copper coloured steel. It will say on the package. The Chore Boy method is the easiest way to get let out of rifling that I have found. I found the chemical route to be messy and largely a waist of time. Once you get the lead out run a few patches using Hoppes #9. The cloth will come out black initially due to the copper scrubbing and the powder residue the Chor Boy will lift from the rifling.

As to leading improper sized bullets combined with to hard a lube are the major causes of leading. To hard or soft bullets with emphasis on the former contributes to the leading as well. Most leading is caused by gas cutting. Contrary to what some folks think the lead does not "melt" in your barrel. The bullet just isn't in the barrel long enough for lead to reach the melting point.

Take Care

Bob
 
I have settled on the Lyman 147 gr mold for my 9mm's. I use wheel weights which I drop into water and size them to .356 with a soft lube, but I am going to try bob's suggestion of sizing to .357 I have not done any serious testing but have shot quite a few rounds into cardboard targets and haven't thus far had any issues with tumbling. I tried titegroup and that was an instant smoke screen with quite a bit of fouling, but have noticed less since backing down to a slower powder. Currently I am using WSF and it seems to work quite well. I plan to do some shooting off the bench and experiment with some other powders to come up with a load I would shoot in matches. So far my loads have been fairly soft shooting and accuracy shooting free hand seems fine. If I can keep the smoke down and fouling minimal, I likely will shoot this bullet in all of my CZ pistols.
 
Bullets are .356

FYI

Therein I bet is most of your problem with those boolits. If they are Commercial boolits and hard cast with hard lube I would almost guarantee it is what caused your leading.

I would move to a 9MM boolit sized .357 for your gun. I use this size of lead boolit in all my 9MM guns and don't get leading in any of them. Incidentally if your barrel is a Storm Lake barrel I wouldn't spend a lot of time slugging it. I have never heard of their barrels ever being any more than .355 in diameter.

If you do cast your own go with a soft lube and boolits sized .357.

Take Care

Bob
 
1/2 were DRG RN 125 gr with Titegroup @ 3.6 ish. OAL @ 1.087. Other 1/2 were Wolf Conical 125 gr with the same charge and length. No issues with performance, just fouling. Can't be sure if one or either made any difference..

Just checked my supplies and my DRG 125g lead RN spec'd at .355. Interestingly my Wolf 125g plated RN measured at .355 as well.

I use 4.8grs of Universal for both, however the plated shot better. I'm kinda leaning toward the who needs the lead headaches camp...
 
If the leading only happens towards the muzzle end, the bullet fit is good. In a regular (non-ported) barrel this would mean there's a constriction right before the leading point or the lube is spent (which is unlikely in such a short barrel)
This leaves only the porting as the culprit.
The porting either turned some sharp edges inside the bore or deformed it (or both).
Or maybe the high 9mm pressure bumps the bullet while passing through the ported area which shaves the lead.
No quick solution to any of these issues comes to mind.
 
The Lyman 147 has a very large bevel base and will cause problems if sizing is "off". Hardening this bullet will be counterproductive as regards fouling.
 
why boolits and not bullets?
For some reason this phonetic butchery has found a common foothold in the cast bullet fraternity. I despise it myself as it gives the perception of ignorance to those not in-the-know. I guess they figure it's funny.
 
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