I have had good results with Barnes Solvent. The bottles I have are a few years old, still smells like ammonia and still works good.
Try a Sweets overnight with a patch that comes out clean, then show me copper.
When you think Sweets removed all the carbon wet the bore with a Hopper Kroil mix, let it soak for 3 days, brush with a good bronze brush then patch it out. You might be surprised. Now I will add to this conversation if your a clean every 100 rounds guy I would not be limiting myself to just chemicals. JB and Isso are part of my arsenal also, used and cleaned out properly. I will add if you spend one evening after a match on your barrel, I doubt it's clean unless your leaning hard on Isso or JB, maybe not the best route to follow on a regular basis.
You must not be using the same Sweets that I use because mine says right on the bottle never leave it in the bore more than 5 minutes. Sweets 7.62 Copper Remover.....I have seen it pit a bore in 10 and you leave it overnight???? Thick, clear, very heavy ammonia smell that will take your breath away if you get the patch too close to your nose???
Since I don't have a borescope, I will keep looking at patches, the way they did it in the old days.
I have never spent more than 10 minutes with the worst copper fouled barrel using JB Bore Cleaner. All that said, I only use it if the bore is bad and/or I have to get back to shooting soon. Otherwise I soak with Shooters Choice MC-7 overnight. Takes longer, but is way easier from a physical standpoint. If you have to scrub any barrel for an honest to god hour with JB that barrel needs to go back where it came from.
No more copper, how do you keep it from removing the lands as well?
You know, I've always wondered why leaving Sweets in the barrel for 15 minutes for the 60 or so times the barrel is cleaned [before it's time to rebarrel] is OK? In total, that would be 15 hours that Sweets is in the bore.
There is a hell of a difference between 60 times 15 weeks or in most cases months apart and 15 hours straight soak time. It doesn't matter how many times it's in the bore for 15 minutes, it's still only 15 minutes total "attack" time at any given cleaning session....now 15 hours straight....you probably wouldn't have a barrel left.
Your brighter than most jelenko. Do they tell you you can not reapply it after the first 15 minutes. Of course not. So , if I am selling a product I want my users to buy more . So, use more by reapplying every 15 min. multiple times rather than leave it in for a longer period of times. I regularly soak overnight and have for 20 years in maybe 50 different barrels. As far as the frosted look....never seen it. I even had a fellow shooter who is very anal look at 2 of my barrels once under another pretense and he proclaimed them totally clean, look like new. I will say I use several products , Sweets, Hoppes and Kroil mix, Montana Extreme, and the old Outers Foam along with Isso and JB occasionally. I have tried most out there and all work to some extent. The ones I have mentioned work well for me. None of this is what I have heard or read but what I have used and work for me. Regardless of what you use I doubt your barrels are clean without extended soak time. Lol, barrel cleaning is worse than political discussions .
I love barrel cleaning threads, !!! only thing maybe better is "how to lube your BCG" threads or go to a Harley forum and check out "whats the best oil" to run in the 3 holes threads, it can get pretty funny/scary? LOL
The old guy that helped me during the first of my shooting/reloading experiences in the early 80s or late 70s would pour a little extra ammonia in Hoppes #9...And let set over night. Think that's all we had available
And wait....he also neck sized!!!!
No hammer marks on his bolt like some would say
That bull barreled 6mm really shot like s___T, now that we have the internet im realizing that thing was a smooth bore after his cleaning method (no lands left I guess) and he was talking of shooting prairie dogs all day at 500 yds. in montana. (no pics then it didn't happen right?)
But he did have pics of his camps with deer hanging like a string of fish...man the good old days
WE dont but a few still persist
some guys still neck size and wish every night before bed that lee would start making nicer products. Sure would be alot quieter around here.The problem is if you forget about it and leave it in too long- you will ruin the barrel- at least performance wise. Probably ditto on Montana Extreme.
