Tubb's final finish is a different realm,
WAY more AGRESSIVE,.....
RatherB,...we have a digitally enhanced ( magnified) bore scope in my neighborhood,.....takes a "Hawkeye" up to 38 power or such.
ALL barrels look like a gravel road at that power,....I mean the BEST barrels
260 is givin' you the straight skinny,.....used right,....you'll not hurt your barrel with JB.
BORE GUIDE,.......and proper rod / jag combo assumed.
Been using it since 1977,.....no complaints,.....
GTC