Spare Parts
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Cleaning a Glock 27. This is the first time I have looked at a barrel with an Opti-Visor, jeweler's loupe, and borescope - entirely my fault.
There is a stubborn gray haze in the grooves just beyond the leade. Also a lesser amount of haze at the muzzle. This is after Hoppe's 9 on a tight patch comes out clean. Have tried the copper chore-girl trick, also some JB bore paste and Kroil. That removed some of the haze, but it's tenacious. The amount of black gunk (steel? carbon? lead?) on the patch was a bit scary.
What is this stuff? The "Normal" dark area is bare steel. The "Gray Haze" is smeared along the length of the groove. The haze can be gently scraped off with a stainless dental pick - it's a black-ish powder.
Sorry about the focus, need a shorter 10mm focal-length borescope.
The barrel only shoots JHP and TMJ. No lead. Win231 and CFE-Pistol, 180gr @ 1000fps. At least a thousand rounds through it. The chamber/throat shows no heat cracks - very clean. The lands have copper on them. Barrel shoots straighter than I do. I'm fairly fastidious about cleaning the barrel after a range trip.
Looking for options. Ignore it? Clean it? Stop using a borescope - it only frightens people?
Thanks for looking everyone - the collective wisdom on THR is awesome. The cast-lead folks are probably laughing at me.
There is a stubborn gray haze in the grooves just beyond the leade. Also a lesser amount of haze at the muzzle. This is after Hoppe's 9 on a tight patch comes out clean. Have tried the copper chore-girl trick, also some JB bore paste and Kroil. That removed some of the haze, but it's tenacious. The amount of black gunk (steel? carbon? lead?) on the patch was a bit scary.
What is this stuff? The "Normal" dark area is bare steel. The "Gray Haze" is smeared along the length of the groove. The haze can be gently scraped off with a stainless dental pick - it's a black-ish powder.
Sorry about the focus, need a shorter 10mm focal-length borescope.
The barrel only shoots JHP and TMJ. No lead. Win231 and CFE-Pistol, 180gr @ 1000fps. At least a thousand rounds through it. The chamber/throat shows no heat cracks - very clean. The lands have copper on them. Barrel shoots straighter than I do. I'm fairly fastidious about cleaning the barrel after a range trip.
Looking for options. Ignore it? Clean it? Stop using a borescope - it only frightens people?
Thanks for looking everyone - the collective wisdom on THR is awesome. The cast-lead folks are probably laughing at me.