New gold cup trophy barrel leading, HELP!

[tuj]

The barrel *must* be fitted! Otherwise you will lose accuracy.

 

[YZ]

Bought a new GC trophy from a local gun shop, new. Stripped it for inspection BEFORE shooting it and the barrel is badly leaded. I know these are "accurized" so I suspect it was fired a bit at the factory. The bore looked AWFUL when we first took it apart - lots of lead. I scrubbed the CRAP out of it with brass brushes, brushes wrapped in chore boy (that fit TIGHT in the bore), soaked in Hoppes, and only removed a minimal amount of lead. I took the gun to the range today and put about 100 rounds of lead through it today and that may have helped a bit. Aside from buying a lead remover kit with the brass screens(cant think of name), what else can I do???

There is some good news I guess, off the rest I put the first 7 shots in the same hole. This gun is a SHOOTER... I cannot stand the bore looking like this on a new gun...

I had good results with LEAD removal cloth. Has to be the heavy variety such as Kleenbore. Cut it in patches and push with a bronze brush sized for 9mm.
I'd avoid using the Lewis kit. Too rough. It was meant to clean forcing cones in revolvers. Gold Cup Trophys are supposedly accurized at Colt.
Using lead cloth, I dont need any lead solvents, they are toxic, pungent, and can mess up finishes.

 

[Hangingrock]

I’m puzzled/surprised/wondering as to why Colt opted to send a barrel as opposed to having the pistol returned for their inspection and repair.