Decreasing the radius will result in more metal being left on the barrel. I think leaving more metal on the barrel will make it stronger.
Barrel Flute Finish
- Thread starter Edd
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There will be more metal on the barrel than there would be if the radius was .002".
beakus33
Well-Known Member
If your talking about .001-.002 on the radius your wasting your time, a human hair is about .003. most endmills with a cornor radius come in .010,.030,.060,.090,.125 but you can have a custome ground.honestly i dont think any barrel maker would put a "v" groove in a barrel. please put a pic on here so we can see exactly what you have.
bigngreen
Well-Known Member
The same as the rest of the barrel, the barrels don't come of a contouring lathe looking all slick, there are tooling marks and such. I've been in the presence of a few barrels getting made and the final process to the out side is to spin it between centers and give it a touch up with a 320 grit belt. Anything better is finish work IMO, which is the job of the guy fitting the barrel. If the barrel maker finished the barrel that would be getting the cart in front of the horse, after putting the barrel in the lathe, cutting it of, machine work and chambering the barrels sustain a little abuse so the last thing I do I polish the barrel and flutes if it's going to be in the white or if I'm coating it I just sand blast it and coat.
If I was expecting a barrel from a maker that was in finished form I would expect to have to discuss it when ordering and be prepared to pay, but that would be a pain in the butt cause you'd have to keep the barrel finish protected during the rest of the entire process!!
CHARLIEDUECE65
Well-Known Member
If the barrel makers name starts with a K, I had the same problem as you describe with the fluting from them on a barrel I purchased. This was done probably 1.5 to 2 years ago. I emailed them about this and my disappointment and their response was they were aware of the problem and working on it. 
I think I ****ed them off. I sent my barrel back to them with a note asking if there had been an issue with the cutter when they cut the flutes or if that was the way they wanted them to look. They sandblasted the flutes then re-polished the barrel with some real coarse sandpaper.
vegas steve
Well-Known Member
edd you gotta watch out for bart b and shortgrass. these two guys think they know everthing and and will argue with you to no end about b.s that doesn't even pertain to the original question the thread was created for.neither one of these geeks are allowed on my threads anymore because of their useless bickering.
Steve, you're very wrong about what and how much I know; many folks in the shooting sports know more than I do. But that may well be past your understanding. Your comment "i have 35 years behind the trigger and already know everything else (in addition to barrel crowns and faces) there is to know about shooting at a competitive level" pretty much proves it; you're the one who thinks they know everything. That's fine by me; I don't object to folks knowing everything, except those who tell everyone they do.
Now get off your high horse and behave like the decent person you probably are.
winmag
Well-Known Member
Wow!
One of those "geeks" is my gunsmith, & the other is a well respected shooter, & LRH member that I trust enough that I've shared load data with.
I actually respect both of them quite a bit, as do Many on this forum. If either of them have an opinion, they've earned it, or have reason for it. Maybe your reasoning is different, but instead of bad mouthing folks, you could try learning something from a discussion, and maybe even add to it if you have anything valuable to add.
Who are you anyway?
Not that it matters, but maybe you aught to think before you type. Remember this is a public forum. Everything you type can, & will be read. It's your bed. You gotta sleep in it, but you may wanna lay off ridiculous comments and accusations.
You dang sure aren't gonna make yourself welcome spittin poison.
Back to the topic at hand please......
WOW! Was that really necessary ??? I didn't see anything wrong with either party's comments.
Agreed, that is crossing the civility line.
Just for the record, they have a very high batting average and I will second Bart's discussion concerning cutting tight radii and or 90's.
I spent many an hour hand grinding and polishing out simple machine marks due to the risk of having them fail.
Heavy Equipment Instrumentation and Strain Gaging.....
Just for the record, they have a very high batting average and I will second Bart's discussion concerning cutting tight radii and or 90's.
I spent many an hour hand grinding and polishing out simple machine marks due to the risk of having them fail.
Heavy Equipment Instrumentation and Strain Gaging.....
vegas steve
Well-Known Member
guys i thought completely and thoroughly before i typed any of this. it was typed for a reason. for the record,putting flutes on a barrel is never a good thing when it comes down to squeezing the most accuracy out it. there is no way to get each flute exactly the same length and depth,and as the barrel warms up from cold shots to warm shots the barrel will favor the weakest flute and string off zero.the best barrel is a non fluted barrel.
Would not the dimensions between the groove bottoms and the outside profile also not be exactly the same from leade to muzzle in a non-fluted, solid barrel? While gun drilling a barrel blank fare thee well centers the hole in the blank's center, there has to be some small error due to the barrel blank not being perfectly homogeneous in its metalurgy.
I doubt even the most accurate barrels have the hole exactly down the exact physical center of the barrel. But I don't think that makes any significant changes to where the muzzle axis points for each shot as the barrel heats up. Putting 20 to 30 shots fired 30 or so seconds apart through 30 caliber barrels heats 'em up quite a bit, but accuracy doesn't seem to suffer going from ambient temperature to very hot for the last few shots. Accuracy's about 1/2 to 5/8 MOA at long range with good barrels so shot.
Perhaps gun drilling, reaming, rifling and lapping a hole in a barrel blank's easier to make more exactly centered than fluting a finished barrel such that each flute's exactly the same shape and position from the bore.
