I've found that inconsistent burn is usually the issue. Powder that is not well suited for the caliber and didn't fill enough of the case volume, for example. BogWalker Grandmaster. Jan 5, 6, Completeness of combustion. Think of a campfire versus a wood burning stove. They both burn wood, but the campfire leaves behind more ash and cinder per amount of wood burnt as the combustion isn't as complete. Jun 23, 28 My empire of dirt.
BogWalker said:. Feb 18, 18 Not close enuf to the track. It's a combination of the nature of the powder, type of bullet, velocity and bullet lube. For example; Bullseye tends to be dirtier than Unique. The type of bullet. A totally encased jacketed bullet tends to leave less debris than jacketed bullet with an un-jacketed base.
Lead bullets take into consideration the formula of the lead, whether the lead is cast or swagged, the bullet lube and the velocity the cartridge is loaded to. Bennettjh Grandmaster Site Supporter. Jul 8, 8, Columbus. Drail Master. Oct 13, 2, 48 Bloomington. Some powders make a lot of ash and some don't. Unique used to be MUCH worse than it is now. That stuff was one step up from black powder.
The cleanest pistol powder I have found is Winchester Super Target a shotgun powder. Most shotgun powders made for light target loads also work well in handgun cartridges up to medium speeds.
Thanks all. Keep it coming. Bacon grease for bullet lube? Mar 4, 1, 48 Southern Indiana. Mgderf said:. LarryC Master. Jun 18, 2, 48 Frankfort. A lot of the commercial ammo is pretty dirty, leaving quite a bit of residue.
I can only surmise but it appears this ammo is loaded to keep the pressures low to prevent damage and lawsuits when the ammo is used in a old firearm that has lower quality steel or badly worn firearms. In my experience reloading and shooting most if not all powder burns more completely when the "pressure" is closer to the high end of the SAAMI spec.. I can't prove whether this is due to more complete sealing of the cartridge to the chamber I personally doubt this or the powder just burns more completely at the high pressure.
I do know that certain bullet weights and powder charges of the same powder do have much different amounts of dirty residue left in the firearm - and even is evident in the "smoke" evident when the cartridge is fired. However much or most of what we call dirty residue is actually the unburned graphite that is used to coat the powder granules. As far as I know almost all powder is coated with Graphite. The "coatings" used to cover the grains determine the burn rate of the powder.
I'm sure there are other materials used in addition to the Graphite to coat the powder to obtain the proper burn rates, but I doubt anyone will tell what these are as they are proprietary to the manufacture.
By the way the Graphite residue is not a problem in firearms, it is actually a lubricant and will also wipe off the metal parts easily without solvent. Tactically Fat Grandmaster Site Supporter. Oct 8, 7, Indiana. This can, and often does, allow plenty of crap to blowback into the chamber of the firearm. This crap gets noticed more with certain ammo because there IS more. If it all blew out the barrel - it wouldn't be noticed as much, though the same amounts are still produced.
HoughMade Grandmaster. Oct 24, 31, Valparaiso. GodFearinGunTotin Grandmaster. Mar 22, 40, Mitchell. HoughMade said:. May 9, 3, Another thing that could be a factor is something that came out of the investigations of the early jamming issues with the M in Vietnam.
Different powders can have different levels of calcium carbonate in them, which contributes to the amount of residue after firing. The calcium carbonate is added by the powder manufacturer to neutralize any acids remaining from the manufacturing process, some add more than others. It would kind of make sense that an ammunition manufacturer that was using steel cases would be extra careful to make sure the powder didn't have any acids.
You must log in or register to reply here. Log in Your name or email address. By trial and error? What does the "dirty" in dirty ammunition imply anyways? The powder not burning cleanly?
Humidity affecting my ammunition? It cannot be external dirt because I always wipe my cartridges with a slightly oiled rag before loading. My ammunition is always stored together with Damp Rid. Re: "Clean" vs "Dirty" Ammunition by AusTac » Mon Jan 04, am Pretty much the bi product of burning whatever powder chemicals happen to be loaded in the case, and as every brand uses different powders some will burn cleaner and more wholy than others just like an engine, i personally only shoot factory at the moment but just through trial and error you get the know the dirty ammo which is usually cheaper but not always the case Those that re load will probably be able to chime in with alot more technical data.
Re: "Clean" vs "Dirty" Ammunition by Wm. Traynor » Mon Jan 04, am zobster wrote: I always wipe my cartridges with a slightly oiled rag before loading.
Treat trolls with the contempt they deserve. Re: "Clean" vs "Dirty" Ammunition by pomemax » Mon Jan 04, pm I think you may be referring to a comment i made, on a post about cases getting stuck or something like that. I was shooting 9mm a a range one day forget the name of the rounds but the smoke coming from the Beretta the range office came in and asked what powder I had in them they thought I may have loaded them with blackpowder by mistake but they were factory I was cleaning the pistol for about 1 hour just to get it clean a lot of crud from the rounds Yes its just try it and see i have seen 2 pistols shot with the same ammo one was clean after rounds the other the guy cleaned to dirty after 50 same ammo same brand of pistol and they we're burning different in the chamber you could see inside the spent cases on dark grey the other shinny brass looking.
Might have to start handloading as I've yet to find a brand of ammo that my likes. Perhaps the powder might burn cleaner compared to the powder in factory ammunition. Re: "Clean" vs "Dirty" Ammunition by Oldbloke » Tue Jan 05, am "Might have to start handloading as I've yet to find a brand of ammo that my likes. Shot very dirty indeed. Grouped like a 12g as well. Now reloading with AR and much cleaner and very happy with the 0.
Traynor wrote: Please don't do that mate. Your cartridges will not be able to grip the walls of the chamber and the backthrust against the locking lugs will be increased.
I don't know what the long term consequences of that would be but it is completely unnecessary and potentially harmful to your rifle. CZ American Safari Magnum in.
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