How gun factories clean all new gunes…

Kind of related. How do they clean guns after being sent back for warranty or other service?

I have sent a Ruger revolver back several times and each time the work order sates what they did and cleaned firearm
It is spotless.

Probably the way that is described in the user manual . . .

Maybe the test fire guy pulls a bore snake through when done. Only takes a couple seconds to do. Well maybe 5 or 10. I've got new guns with fouling also so not all are cleaned.

I would guess that they dunk it in a sonic cleaner.

To me NIB implies not cleaned after it was test fired/proof tested.

Most gun maker do not clean the new guns after test firing. They typically only fire 5-10 rd through it as part of a final QC check. Nothing about modern propellent and primers necessitates cleaning so they do not. Saves time and money.

Might be a way of showing the customer that the gun was test fired and the non-corrosive soot in the barrel may act as a rust inhibitor??????

My red neck thinking was it was left unclean, for the sole reason of the person buying it will strip it down and clean the factory grease off and relube.

I always inspectand lube a new firearm before shooting.

I rarely have bought a new gun, but the ones I did, had sooty bores from being test fired. Some had copper wash in the bore.

The few guns I've seen directly from the factory were covered in heavy oil. The display models were at a minimum wiped down by the store employees.

New guns I've bought, I generally shoot them a few rounds before I clean them, unless they were covered in oil then I wiped them down and swabbed the bore.

I do not think the clean the guns after test firing. One of the reasons we always advice a novice shooter when they are having issues with a new handgun many of us will ask if it has been thoroughly cleaned.

They don't.

That being said, It seems like long arms aren't usually test shot. But all of my pistols have been. Which is kinda odd for some of the polymer types.

When I worked for Les, the final assemblers were responsible for test firing and and cleaning the guns afterward. They were the only ones who were allowed to shoot the guns. ( other than Les, of course.) When done, they ran patches through the bores and wiped down the gun. A complete teardown was not considered necessary.

Unless my factory was in a salty air environment, I would not clean them after my trained expert had test fired and zeroed them to his eyeballs.

As noted, modern propellants and primers are not usually corrosive, and I doubt the factories would be using corrosive ammo for their final testing.

Also, zeroes change after firing from a clean barrel, which is why they allow fouling shots (or did, anyhow) for matches.

And as I have wisecracked previously, "More guns, cameras, small boys, and coffeepots have been ruined by excessive cleaning than any other single cause."

Yeah, get the Cosmoline or whatever out, and make sure daylight can make it through the barrel, but no point in worrying about how the factories might do it in regular production.

Terry, 230RN

Couple of days ago I watched a video that was a complete start to finish about Sako rifles. The rifles were not cleaned after being test fired.

The only thing I notice is the excess oil that coats everything. Some guns seemed to be dipped in oil then covered in plastic.