Fluting blanks

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

 

Because of variances in caliber and barrel contour, you would be safe by checking with your manufacturer, to not overly flute. Some show it on their site, some would answer a phone question.

 

Tod, I had a 2'' blank fluted Deep, Really Deep.it saved 7 oz, you probably be better off taking an inch or so off..if you can.

 

Get it completely chambered and fit before you do anything. Tell the gunsmith how much it can weigh. You can take less off the big end compared to the front end. Then send it to boltfluter to get the right kind of fluting to take off the weight

 

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.

 

Cool!

 

Looks like a concrete bit

 

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.

 

How much weight do you need to save?
For every .250" on the breech end of a 1.250" barrel you save 1.33 ozs.
I would start there.

 

Can’t read the units on the scale. .4 oz?

 

That scale is 1.6 ounces per tenth the scale reads .40 so that would be 6.4 ounces.

 

Krieger does fluting, why not let them do it? You can call them and get a quote. It couldn't hurt.

 

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

 

I just had this done about a month or so ago. They took off 21oz on a HV Krieger 17TW. It balances just exactly where I run all my rifles.

 

Wow, that's cool...a bit of machine time there, eh?

 

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.

 

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.

 

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.