1:5 twist.  I'll do accuracy tests next.

interesting - what loads work?  Would you use a suppressor?

Damn. I thought the 5.5 of my rattler was almost silly

Absolutely. So far subsonics,  I have some all copper supersonic loads, so I'll test those next.

Energetic Armament Vox S with the Dead Air Keymo mount.

Haha,  indeed. Actually with the can, it's pretty sweet

If you handload you can get away with this short of a barrel in this particular caliber. Ive had good luck with fast magnum handgun powders like w296/h110 in my 1:7 6.25". Id like to go a touch shorter, but I don't see the benefit of spending more money to shave off 3/4ish inch.

OP. Is your barrel cerakoted or some other coating? Interested in accuracy results. Have you shot subs and supers through it with a can? I skipped through the video and didn't have the sound on. Apologies if you mentioned it there.