rebarrel and accurizing

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danbnimble

Guest
new to the forum would really appreciate it if someone could take a couple minutes to answer a few short questions

I purchased a used rem 700 .338 win mag would like it to be a project gun. stainless barrel, composite stock..there are a lot better guns to start with but this is what I got....

will replace factory barrel with a no. 5...is a 1:11.25 twist an uncommon or spendy twist rate?

After having a barrell trued to an action do I have the bolt face squared up also? It kind of makes sense as the bolt face is the butt end of a chamber. What about the locking lugs?

besides stress relief, can I assume glass bead blasting will create a similar surface cooling effect (increased surface area) as flutting or is flutting primarily a strengthening effect?
thanks
 
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danbnimble said:
new to the forum would really appreciate it if someone could take a couple minutes to answer a few short questions

I purchased a used rem 700 .338 win mag would like it to be a project gun. stainless barrel, composite stock..there are a lot better guns to start with but this is what I got....

will replace factory barrel with a no. 5...is a 1:11.25 twist an uncommon or spendy twist rate?

After having a barrell trued to an action do I have the bolt face squared up also? It kind of makes sense as the bolt face is the butt end of a chamber. What about the locking lugs?

besides stress relief, can I assume glass bead blasting will create a similar surface cooling effect (increased surface area) as flutting or is flutting primarily a strengthening effect?
thanks
Click to expand...

When an action is trued the bolt face and bolt lugs are as well.. at least it should be.

Glass beading won't have any cooling effect that you will be able to measure. Painting a barrel black will cause it to cool quicker if it isn't under a hot sun. Fluting has a weakening effect but it makes a barrel somewhat lighter.
 
Thanks Dennis
I always thought flutting added rigidity. Nope...
 
Dan

Well, yes, and no. If you start with 5 pound a barrel, and flute it, it will not be as rigid as before. But, if you start with a barrel of the same length that weighs more than 5 pounds, and flute it so that it weighs 5 pounds, it will be stiffer than the first barrel. But, the amount of stiffness gained probably can't me measured. In my opinion, the primary purpose of fluting is to reduce weight, and look attractive.

I have never heard of bead blasting acting as a "stress relievng" proccess. if anything, the opposite might be true.

There are those that believe that a bead blasted finish will cool quicker than any other. But then again, that also might be one of those items that is pretty difficult to measure..........jackie
 
Dan Welcome to the "Quest for Accuracy"

It is the best practice and the most cost effective to have all of the action work done at the same time and by the same shop that is doing the barrel work. There are so many dimensions that change when truing an action that must be accounted for when installing a barrel to that action that the labor is actually cheaper to start over with a new barrel.

Two barrels of the same length and weight one being fluted and one not; the fluted barrel will be stiffer because too weight the same after fluting it has to be larger in diameter. Two barrels of the same weight and diameter the fluted one will be longer. The biggest difference between two barrels of the same length and diameter is the fluted one will cost more. Some folks like flutes; but me not so much, down the road they always seem to get in the way.

Shot peening will relive stress in a forging but the surface finish is very poor because shot peening is done with steel shot. Match quality rifle barrels are made from billets and shot peening one will induce stress and ruin it. Glass beading will give a nice matt finish that on a stainless steel barrel is very easily marked up through use. On a chrome moly barrel the bluing will negate the delicate attributes of a glass beaded finish.

Unless you are building a rifle that will see sustained fire for a significant period of time; the color of the finish or the added surface of flutes will result in no real difference.

Good Luck,
Nic.
 
thanks for the information

I've gotten persnickity with my bench loads especially in case prep and consistancy. So it makes perfect sense to have a rifle that shoots an honest proof of a load I'm working up. I've hunted nearly all my life but have never been down the road of accurizing a hunting rifle. Never had the time.
so thank you for lending your expertise
 
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