Lines across rifling in pistol barrel | VA Gun Trader

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#2356246 - 07/30/26 09:20 PM Lines across rifling in pistol barrel
Eagle Eye Pea shooter Registered: 08/06/14 Posts: 2 Loc: Yorktown City or County: VA	My S&W M&P9 barrel has these strange lines across the rifling at the ramp end. Round count about 2,000 with standard load Winchester and UMC ball ammo. Still accurate and functioning 100%. The "fanning" you see deeper in the barrel is artifact of the digital image. Does anyone have an idea about what is going on here? See the attached pictures. Thanks for your consideration, Mark Attachments Edited by Eagle Eye (07/30/26 09:21 PM)
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#2360154 - 08/16/26 09:10 AM Re: Lines across rifling in pistol barrel [Re: Eagle Eye]
MetroBluing Always Lurking Registered: 03/10/13 Posts: 434 Loc: Va City or County: Loudoun	Those marks are from the button rifling process when the barrel was manufactured. _________________________ Life is tough, it's tougher when you're stupid. - John Wayne
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