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Fluting blanks

4xforfun

Gold $$ Contributor
Not finding what I want on the search engine. What is the "rule" for fluting tubes. I found a tube I want/need, but it needs to be fluted to make weight. Krieger 17# HV

Thanks,
Tod
 
To my understanding it's best to flute before the final lapping is done. Is this correct? Seems like I read an article in PS years ago on this topic and supposedly fluting after final lapping would cause some irregularities in the bore deminisons, admittedly very minute.
 
To my understanding it's best to flute before the final lapping is done. Is this correct? Seems like I read an article in PS years ago on this topic and supposedly fluting after final lapping would cause some irregularities in the bore deminisons, admittedly very minute.
Its all in how accurate you need it to be. Youll never know it was fluted on anything but a very good short range br rifle.
 
I don't think you guys realize what a handful of chips weigh.LOL
Here is one pass 26 inches on turning a gun barrel .150 thousands this is approximately how much the chips weighed approximately.
Can’t read the units on the scale. .4 oz?
 
Tod
Have only had one match barrel fluted, and did it for the weight savings exclusively.
31" HV Bartlein 6mm/243 --- 6 flutes, 22" long each, reduced the weight 1-lb

Note: personally would never flute a pulled "button rifled" barrel unless it was fluted before it is rifled, do to added stress. But the fluting to a single point "cut rifled" barrel is a form of stress relief, which can be done before or after rifling.
Good Luck
 
20200320_115742-1.jpg 20200320_120410-1.jpg After reading someone's comment about not fluting button rifled barrels I thought I would do a little bit of measuring and here's what I come up with I air gauged it from one end to the other and needle didn't move on air gauge no fluctuation whatsoever so I tend to disagree on the fluting of a button rifle barrel.
 
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Several years ago I had a 300 WSM LR/BR Light Gun built. I told the gunsmith (a barrel maker) to make the barrel 1.45 for 5" with a straight taper to .95" at 30", then flute to make weight.

He made the barrel then cut 10 flutes .25 x .25 x 24". That was way too much. The rifle could have weighed 17 lbs but came in at 15lbs 2oz WITH a NF BR scope mounted.

That rifle shot very well. One year I shot five screamer groups with it and set two club agg records. However, the barrel acted more like a LV contour. While it was exceptional when shooting five shot groups, it was not competitive shooting 10-shot groups.

I had my puller spot my bullets one day during a 10 shot group. The first five were awesome, but shots 6-10 progressively opened up in an arc. So I stopped shooting it in the HG class.

On the plus side, with that many flutes that deep and wide, the barrel did cool a little more quickly.
 
Not finding what I want on the search engine. What is the "rule" for fluting tubes. I found a tube I want/need, but it needs to be fluted to make weight. Krieger 17# HV

Thanks,
Tod
Check with Greg at Southern Precision Rifles. Website is bugholes.com
He has a bunch of barrels in stock and can flute them as well.
 

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