Most common suppressor thread pitch

[SanDiegoHntr]

So I live in California, where suppressors are the devil's work (and illegal). I'm having a brake installed on my Tikka T3x Superlite in .270, and have a choice of thread adapter in either 5/8" x 24, or 1/2" x 28. Not metric threads, obviously.

I'd like to bring my rifle over there someday, and use it with one of your cans, after removing my brake. I am completely unfamiliar with your typical options, and am wondering if its even a possibility.

Any ideas on if this is possible? Maybe an adapter, if all your sh1t is metric?

Thanks,
Dave