Can you bring your own personal handguns or do you have to rent theirs?

You can bring your own. I had a great experience there. Should you go, I hope you do as well. Good luck.

Do you need certifications on each gun you bring?

You can bring your on gun and brass casing ammo

Bring your own and your own ammo. NO STEEL CORE.

Yes you can, just make sure you ammo is made in the USA or else they won't let you shoot it.