Another happy DougGuy customer

I sent off two barrels for DougGuy’s package. I have a SA 9mm 1911 and a CZ SP-01 that had tight chambers that plunked ~95% of my cast loads. I really just needed throat work but since he offered beveled crowns I thought, why not? Great handiwork, quick turnaround time and great communication. Now I can see why everyone else has been happy with his services.

I won’t have time for a while to try out the new barrels, but I’ll be sure to update when I do.

https://uploads.tapatalk-cdn.com/201...1b60eb1677.jpg

Doug opened up a tight chamber-throated Model 629 for me. Outstanding work done by a craftsman!:bigsmyl2:

I feel like having DougGuy work on your stuff is a right of passage around here [emoji23]

Quote:

---

Originally Posted by EMR

I feel like having DougGuy work on your stuff is a right of passage around here [emoji23]

---

LOL right of way for boolit passage! :bigsmyl2:

Those are 20 degree crowns. I settled on that angle by viewing a slow motion video of a 1911 firing and at the moment the gases exited the muzzle, I stopped the video, and measured the angle of the gas cloud, and I got a NeWay carbide cutter for a Yamaha small engine valve seat that happened to be made on the same angle. To me, this is the optimum angle for a crown. If the crown is parallel to the high pressure wave exiting the muzzle, then there is no space behind that would allow or promote any turbulence. Too much angle would cause the gas to be deflected towards the boolit, and could possibly affect how the gun recoils in the shooter's hands, not enough would possibly allow turbulence to disturb the gases from the sides.

And now I'm telling my trade secrets...

Quote:

---

Originally Posted by DougGuy

LOL right of way for boolit passage! :bigsmyl2:

Those are 20 degree crowns. I settled on that angle by viewing a slow motion video of a 1911 firing and at the moment the gases exited the muzzle, I stopped the video, and measured the angle of the gas cloud, and I got a NeWay carbide cutter for a Yamaha small engine valve seat that happened to be made on the same angle. To me, this is the optimum angle for a crown. If the crown is parallel to the high pressure wave exiting the muzzle, then there is no space behind that would allow or promote any turbulence. Too much angle would cause the gas to be deflected towards the boolit, and could possibly affect how the gun recoils in the shooter's hands, not enough would possibly allow turbulence to disturb the gases from the sides.

---

Wow I had no idea there was science behind this. I thought it was literally just to protect the crown from damage should it get bumped.

As soon as I send off the dies and such I have for sale my CZ 75 SP-01 barrel is headed to Nawth cackalacky for throating. And I'm anxious. I'd like to be able to fire a Lee 358 RF without having to seat it so the COL is an inch or less. To me it's just seated too deeply for safety...

^that was my deal. The CZ was making me seat deeper than I liked.

yes, I cant wait to have doug work on some cylinders I have, I should have already sent them, but money, then sickness got me sidetracked till my check on the first of the month!

Quote:

---

Originally Posted by Tom W.

As soon as I send off the dies and such I have for sale my CZ 75 SP-01 barrel is headed to Nawth cackalacky for throating. And I'm anxious. I'd like to be able to fire a Lee 358 RF without having to seat it so the COL is an inch or less. To me it's just seated too deeply for safety...

---

Mine too. I think I got the crown and throat package on that gun, and that CZ shoots better than I ever could. No need to spend money on a fancy Shadow 2, when the SP-01 has become one of the best competition guns I could have hoped for.

Hey Doug, you ever get another .358 reamer? I've still got a Glock barrel that could use some love