Carbon fiber Model 70 build

[p_ham]

I'm behind schedule but I got the barrel tenon threaded, bolt nose cone cut, and chambered.
Muzzle high side was indexed at 12 o'clock.

Pre drilled and bored the chamber


Chamber cut and polished

 

[EKYHunter]

I'm behind schedule but I got the barrel tenon threaded, bolt nose cone cut, and chambered.
Muzzle high side was indexed at 12 o'clock.

Pre drilled and bored the chamber
View attachment 262973

Chamber cut and polished
View attachment 262974

Nice!!!

 

[std7mag]

@p_ham
I gotta ask.
How do you index the high side at 12 without actually screwing it into the receiver?

Indexed high when hand tight, or did you take torquing into account?

Curious minds wanna know! Lol

 

[millerkiller77]

@p_ham
I gotta ask.
How do you index the high side at 12 without actually screwing it into the receiver?

Indexed high when hand tight, or did you take torquing into account?

Curious minds wanna know! Lol

I was curious about that also

 

[std7mag]

I mean i've indexed spark plugs on race cars before.
And sometimes that would be a PITA.

 

[p_ham]

@p_ham
I gotta ask.
How do you index the high side at 12 without actually screwing it into the receiver?

Indexed high when hand tight, or did you take torquing into account?

Curious minds wanna know! Lol

You do screw the receiver on. After the threads are cut, indicate the muzzle and mark the high side (at the tenon shoulder). Cut the shoulder back until you're a couple degrees from TDC. You can also index at 6 o'clock if that's closest.

Same basic process for timing a muzzle brake.

 

[std7mag]

Well, with all the lathe pics, thought i'd share what happened at work today.

Guy running the Haas ST35 had put a piece of 4140 shaft in to machine. 6" diameter X 4" thick slab off of a shaft.
We were all standing around talking, doing our shift turn over.

Suddenly BANG, BOOM, BOOM BANG!!

Piece is out of the jaws, laying on the chip conveyor.

Seems he forgot to put the 1.75" drill in and it tried to drill with the 1.25" boring bar.
Of course for those that don't know, the closer to the center of a piece your working, the faster the lathe spins.

Just glad it wasn't me!

 

[p_ham]

Well, with all the lathe pics, thought i'd share what happened at work today.

Guy running the Haas ST35 had put a piece of 4140 shaft in to machine. 6" diameter X 4" thick slab off of a shaft.
We were all standing around talking, doing our shift turn over.

Suddenly BANG, BOOM, BOOM BANG!!

Piece is out of the jaws, laying on the chip conveyor.

Seems he forgot to put the 1.75" drill in and it tried to drill with the 1.25" boring bar.
Of course for those that don't know, the closer to the center of a piece your working, the faster the lathe spins.

Just glad it wasn't me!

I worked in a shop machining raw carbide for a while. It's not solid, it's powder and a wax mixture that are super compressed. Lots of come-aparts in that place.

 

[jeff_gibbons]

So cool!

 

[millerkiller77]

I worked in a shop machining raw carbide for a while. It's not solid, it's powder and a wax mixture that are super compressed. Lots of come-aparts in that place.

I use a lot of carbide tipped tooling and can say that 20-30% of it is freaking sketchy. Kennametal used to be the industry leader and innovators in carbide tipped tooling, now it's hard to differentiate between what's real and counterfeit. China has flooded the global market with counterfeit tooling...... and it's impossible to differentiate until you put it down the hole.

 

[fmnjr]

What was your customer's goal for this rebuild request?

 

[millerkiller77]

What was your customer's goal for this rebuild request?

I'd love to know the answer to this also.

 

[p_ham]

I'd love to know the answer to this also.

Weiners on the cheek pad?

 

[p_ham]

What was your customer's goal for this rebuild request?

High end lightweight CRF 3 pos safety in 300WSM

 

[millerkiller77]

Weiners on the cheek pad?

C&B on a jeweled bolt is freaking awesome and scientifically proven to produce .128 groups with factory ammo.
Weiners on the cheek pad is iffy, I guess it would depend on which way they are "headed"

 

[fmnjr]

High end lightweight CRF 3 pos safety in 300WSM

I'm an ignoramus, had to look up what you were referring to in your last two answers.

 

[p_ham]

C&B on a jeweled bolt is freaking awesome and scientifically proven to produce .128 groups with factory ammo.
Weiners on the cheek pad is iffy, I guess it would depend on which way they are "headed"

Tips to lips. That way with every shot you get a quick "peck"

 

[millerkiller77]

Tips to lips. That way with every shot you get a quick "peck"

I can't stop laughing at that one. Post reported

 

[Dsnow9]

I can't stop laughing at that one. Post reported

Meanwhile you put the special order in for them though didn’t you!

 

[millerkiller77]

Meanwhile you put the special order in for them though didn’t you!

Gay for the stay