Fluting
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I only have one barrel that's fluted my 16 inch AA light and it has straight line flirting all the way around the barrel.
Really like it but to be honest I don't think it takes off all that much weight, What it does do is cut down some weight but keep the stiffness of the original barrel thickness.
I like it, it's cool looking but If I was doing it again I would have went with a thinner profile to start with.
With the creedmoor. I would sit down and get a good understanding if the goals for the rifle then decide if a thicker profile with aggressive flying is the best route or if a slightly thinner profile is better for the end goal of the rifle.
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I have one with straight fluting, a 20". It so far is performing great, the fluting cuts back on the weight true. But I wouldn't make presence or absence of (straight) fluting a deal-breaker for a good barrel either way. Wouldn't go for the spiral however, too much chance of introducing or exposing some kind of stress... and I doubt if it would keep stiffness compared to non-fluted or straight flutes, that's my 2 cents.
just doesn't seem to be a good move for a straight steel pipe.
Think spring vs straight bar of steel. Which one flexes more?
Might look pretty but function is what I'm most concerned about."Down the floor, out the door, Go Brandon Go!!!!!"
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I'm sure PF could chime in but my understanding from very competent 'smiths is that if it is done improperly it can negatively affect accuracy.
Charlie Milazzo saw a sub-MOA gun open up to over MOA because of it.
Some believe that after fluting it would be necessary to cryo-treat the barrel (due to the stress fluting can impart on the metal) to "realign" the grain of the metal.
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While my skepticism on cryo-treatments has been expressed elsewhere (so I won't go into it again and to each his own as far as opinions on it go), it probably depends more on the skill and quality of the mfr and the particular process they use to make the flutes. Could possibly be that no additional stresses are introduced, or a lot of stress introduced. If any work hardening, excessive local heating, or plastic deformation is caused (ie, grain realignments), that could be a problem but is mostly in the hands of the barrel maker who's doing the work.
Perhaps there is someone on here who has more metallurgy expertise and might chime in."Down the floor, out the door, Go Brandon Go!!!!!"
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