Need a site that has ALL barrel thread info

[1 Patriot-of-many]

I need a site that has all barrel threading info for all rifles from .22 to Russian to all .30 cal including German so I can order adapters for all my rifles to 5/8 by 24 threading into the suppressor. Thanks for your help.

[Nobeard]

Don't know of one site that would have all that info, may require research on several sites and forums.
Even if you are relatively certain the info is correct, I'd still invest in a good 0 to 1" micrometer or dial calipers and a thread gauge.
That way you can verify the diameter and thread pitch on each barrel before spending any $ on ordering the adapter.

[Nobeard]

Should add that most modern German rifles have Right Hand (RH) threads but some early imports were Left Hand (LH)
For H&K pistols it could be either. Pistols also require a 'booster' or 'decoupler' to cycle.

Since you've got a 5/8 X 24 it's probably a .308 or .300 AAC (also referred to as Blackout) so even a 9mm would be too big.

Inch pattern threads are usually designated like this: 1/2 X 28
That's 1/2 inch diameter by 28 threads per inch.
Yours is 5/8 inch diameter by 24 threads per inch.

Metric? Yea...they have to 'screw' everything up: 16 X 1 (or 1.0)
That's 16 millimeter diameter by 1 millimeter per thread...
As in 1mm distance for the thread to make a complete revolution around the barrel.

[1 Patriot-of-many]

Thanks, micrometers I have, will have to order a gauge.