"...aspire to live quietly, and to mind your own affairs, and to work with your hands, as we instructed you, so that you may walk properly before outsiders and be dependent on no one." - Paul to the church in Thessalonica.
This guy is right, to a point. A little copper smeared over barrel steel can tighten up groups. His blanket statement is the problem. I have a rifle I worked up loads for and shot it quite a lot before I did a deep cleaning with copper solvent. It would shoot 1/2 inch at 100 yards with my load. After I cleaned 90% of the copper from the bore, the groups opened up to 1 1/2 inches, and took 20 or 30 shots before they started to tighten up. BUT.....There is such a thing as copper fouling and can do the opposite. I have a couple milsurp Rifles with so much copper fouling that I still can't get it all out after 10 attempts. They got better after I cleaned them, so I let well enough alone. The key to this is "how much is too much?".... every rifle is different and has a different history..
As a bore cleaner? Yes. About the same as Hoppe's 9.
I have both on the shelf for occasional use. And often use either as a final wipe after cleaning with an actual copper remover, then a wash with Birchwood Casey's Gun Scrubber.
Hoppe's or CLP are great for barrels which do not break 2400 FPS. For those shooting over 3400 fps, not so much.
I wonder what the guy in the OP would say about JB bore paste? "Oh the horror"!
People who choose to brew up their own storms bitch loudest about the rain.
Barrel cleaning is much like stock finishing, everyone's got their own method and thinks theirs is the best. There'll never be agreement on either subject. Gotta go pop another batch of popcorn, y'all take care now.
I am a believer in a thorough cleaning pretty much after every use on all my guns except one.
The only gun that I never clean the copper fouling is my trusty 702 plinkster. I have probably about 3000-4000 rounds through this gun and never have done a deep cleaning what so ever, and day before yesterday I shot the head off of a dove that was sitting on a branch 35-40yds away with Winchester bulk ammo.
I started loading for my Sako, 26" bbl .264 in 1970 . I loaded 140 Gr Nosler partitions....for a hunt in the Yukon.
I loaded 1-1/2 - 2 grains IMR 3450??? past max . That is where she shot the best. That is my hunting load . Now I shot a lot at lesser velocities
...to find the best load. Old equipment.... mounted a 2.5 X 8 B&L scope in Kuharsky mounts. Killed Fannin Sheep , Moose , Caribou on that hunt
Grizz too. Killed a few deer also. Bore is still good . That scope and mount is still being used today on a Sako .300 H&H.
I have , I am sure, many more rifles than you....and a little bit of experience.
I have used Pacnor BBLS on custom rifles never shot one out, with the exception, of Marlin Sakos chambered in .222.....the micro-grove rifling
was replaced with Harry McGowen BBLs. I bought several Marlins cheap as I knew the BBls were junk.
I don't ruin BBLs by cleaning.
Now piss around all you want..... I am done.
Adios
Possibly IMR 4350?!
Some day you might try Magnum, IMR 7828, Retumbo, H 1000, RL 25, 26, or 33, or Mag Pro in that 264. Any of which is much better suited to the case capacity of the 264, especially with 140 gr bullets. The 140 partition being the worst of the bunch for creating over pressure situations.
I like Magnum with the 130 gr accubond at 3300 fps
Like you, I have never damaged a barrel by cleaning it.
It matters little what one has killed or how many. What matters is the shooting.
5 years to put 2500 rounds through the 264, ten years for the 7 STW. Like you, I have never damaged a barrel by cleaning it. I have shot out a few. Cleaning does not create scorched throats, eroded lands, extended freebore, and alligator skin.
Why do shooters lengthen COAL over time "Chasing the lands"?
People who choose to brew up their own storms bitch loudest about the rain.