CNC Bolt Fluting

[Scotty454]

So I'm fed up with Photobucket. It's slow as ****, and now all my links are broken in my old thread. So I'm switching to imgur, and re-making this thread.

Link to the old thread

Here's what I've done so far. Little picture heavy:

Vortex Flutes:
Most popular by far. Less material removed (More wall thickness/integrity retained), nice visual effect. Typically 6 flutes.

On a Mauser style Bolt- Due to the claw type extractor, I had to interrupt 3 of the 6 flutes, so that the extractor wouldn't hang up during cycling. This bolt is from a Montana Rifle Co. Extreme X2.

Extractor removed:







On a Tikka T3 Bolt:



On a Remington 700 Short Action Bolt:



On a Remington 700 Long Action Bolt- by request I losened the helix (Not such a tight twist), and extended the lead in/out on the flutes (Second pic)





On a Savage Bolt:



On a Bushmaster ACR Barrel:

[Scotty454]

Facet Flutes:
Minimal material removed, maximum wall thickness retained. Technically 8 flutes, but it gives the illusion of 16, because of the way a center cutting end mill cuts on the top of a cylindrical surface. Shiniest finish haha

On a Tikka T3 and a Savage Bolt




6/8 Ball Flutes:
Called that because I use a ball nose end mill to cut them. Round bottom flutes, unlike the flat bottom on the Vortex. More material removed, less wall thickness retained. 6 or 8 flutes.

6 flutes on some barstock:



6 flutes, using a smaller diameter cutter, and 8 flutes. Also on barstock.




Diamond Flutes:
Similar to the 6 and 8 ball styles, but crosshatched. Maximum material removal, and maximum weight reduction. If you're concerned about such things

On a Tikka T3 Bolt:



Sample on some barstock:




Fishnet Flutes:
Not helical. Also a little more difficult to cut, especially on harder bolts like Savage. The one example I did beat up by inserts pretty bad. May have to charge more for this style on hardened bolts to account for increased insert costs.

On a Savage Bolt:

[heaveyhorn]

Your work looks great I must say. Never seen fluting in a mauser before.

Very nice!!!

[hockeynut]

Just sent three Tikka T3 bolts down. Can't wait to see the finished product. Will add some pics once they are back in the rifles.

[260 Rem]

Some very impressive work there Scotty.

[kingrat]

Just picked my two bolts up today and wow did they turn out nice. Even the wife who said it was a stupid idea thinks they look pretty good.thanks again Scott.

[hockeynut]

Got them back today and they look great!! Thanks Scott.

[Scotty454]

Thanks guys, I try

Originally Posted by kingrat

Just picked my two bolts up today and wow did they turn out nice. Even the wife who said it was a stupid idea thinks they look pretty good.thanks again Scott.

Haha good, I'm glad I didn't contribute to you having to sleep on the couch

Originally Posted by hockeynut

Got them back today and they look great!! Thanks Scott.

Nice, I REALLY like the diamond bolt in the blued receiver! I didn't think I'd like that pattern so much. Little Jelly now, haha. Thanks for posting pics!


I cut some Facet flutes on a couple of Sako bolts today. These bolts were already pretty sexy without the fluting (They machining and finish on them was gorgeous), but now... Can't wait to see pics of these in the rifles!





Edit: Holy crap my phone takes some HUGE pics.

[silver lab]

Any pictures of the Montana all put back together on the gun?

[Scotty454]

Originally Posted by silver lab

Any pictures of the Montana all put back together on the gun?

I don't have any, and I'll be damned if I can remember where I talked to the owner of that rifle... Could have been here, or CGN, or a referral by someone else I fluted bolts for.

[madcarpenter]

Are you taking on any more bolts? I have a sako 85 I'd like to have fluted.

[TravisE]

Scotty 454. How would I contact you about fluting a bolt with a Mauser styles extractor? It’s from a 1917 enfield. You are they only person I can find that does them.

[Scotty454]

Been a while since I posted this, and I'm not really active here anymore, so I suppose I should post an update-

I'm at a different shop now, and we don't really have the time or available machines for personal stuff on the CNCs. I can play around on the manual machines, but we don't have what I'd need for helical milling on the manual mill. So unfortunately I'm not able to do any more bolt fluting. Sorry about that. It was good while it lasted though!

Scott

[Deezel]

Originally Posted by TravisE

Scotty 454. How would I contact you about fluting a bolt with a Mauser styles extractor? It’s from a 1917 enfield. You are they only person I can find that does them.

Have you tried Blue Chip Precision out by Calmar? Danny might be able to do it for you.

[FishOutOfWater]

Originally Posted by Deezel

Have you tried Blue Chip Precision out by Calmar? Danny might be able to do it for you.

Did some research today, I'm looking to get a barrel and maybe 2 bolt-bodies fluted.
I don't think this is the guy I'm gonna send my barrel and money to...

https://www.gunownersofcanada.ca/sho...adian-gunsmith

Back to the drawing board...