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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Barrel fluting
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<blockquote data-quote="Black Diamond 408" data-source="post: 121780" data-attributes="member: 1563"><p>I have fluted bbls after i recieved them, they all shot very well. I didn't really know that the bore dia could change due to stresses the tooling imparts on the steel. I called several bbl makers and asked them what should i do, i got conflicting reports, one said the bbl is ruined, others said you may need to stress relive it agian and re-lap, and another said just shoot it. The big trick is dont remove much metal on each pass, take your time, this way your not building up massive amounts of stress. </p><p></p><p> I dont flute bbls anymore, unless its a test gun for my personal use.</p><p>My 338 snipe-tac, (personal gun) was used for a test rifle.</p><p>I wanted to see just how much weight i could get off the bbl by using very large flutes. I used a 31/64th end mill, they are deep! Before fluting the gun would shoot .5moa... after fluting the gun shot 1moa, i felt sick...did i ruin the bbl? I totally cleaned the bore and used moly powder to burnish the bore, re-broke in the bbl. After 20 shots the fouling was gone and groups were back and even better, .2moa was this just a fluke? Probally</p><p></p><p>In my opinon, have the bbl fluted when you order it. This will be the best option. If any thing it will give you peace of mind.</p></blockquote><p></p>
[QUOTE="Black Diamond 408, post: 121780, member: 1563"] I have fluted bbls after i recieved them, they all shot very well. I didn't really know that the bore dia could change due to stresses the tooling imparts on the steel. I called several bbl makers and asked them what should i do, i got conflicting reports, one said the bbl is ruined, others said you may need to stress relive it agian and re-lap, and another said just shoot it. The big trick is dont remove much metal on each pass, take your time, this way your not building up massive amounts of stress. I dont flute bbls anymore, unless its a test gun for my personal use. My 338 snipe-tac, (personal gun) was used for a test rifle. I wanted to see just how much weight i could get off the bbl by using very large flutes. I used a 31/64th end mill, they are deep! Before fluting the gun would shoot .5moa... after fluting the gun shot 1moa, i felt sick...did i ruin the bbl? I totally cleaned the bore and used moly powder to burnish the bore, re-broke in the bbl. After 20 shots the fouling was gone and groups were back and even better, .2moa was this just a fluke? Probally In my opinon, have the bbl fluted when you order it. This will be the best option. If any thing it will give you peace of mind. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Barrel fluting
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