5/8" X 24 threads on a .45 barrel?

[flyanything]

I have a Beretta CX4 .45. The O.D. of the barrel is 5/8 or .625. I want to add a muzzle brake. I know that .625 is used to cut 5/8" threads, but will there be enough material left on the barrel for the pressures of a brake firing a .45ACP? If I thread the barrel, I will thread so I can use a jam nut to tighten against. The barrel is cold hammer forged steel and chrome lined. I was a machinist in the Navy and I can cut the threads, I just wanted some opinions on this application. Thanks for your time.

[dats82]

Would not what you thread over the cut threads replace the strength of the material machined off?

[flyanything]

It may seem so. However, I'm still reducing the material at the attachment point.

[jero100]

The minor diameter would be about .575" leaving about 1/16" wall thickness at the lowest point of the threads.

Kinda thin but should be ok for a brake I guess....unless you drop it and it lands on the brake.

[Guest excatm76]

I think you may want to check on 922R compliance before threading the barrel on that rifle. I'm pretty sure storms are imported and don't have the US parts count to add "evil" features".

[flyanything]

According to 922® I will have to substitute two American made items. The trigger and hammer are replaced. So, I can thread and add a removable device.