I you are hired for a role, the production company will arrange and pay for someone to train you.
Not being completely green will increase his chances of getting hired in the first place. Having some videos of himself doing good range drills can go in the portfolio/resume when he is applying for these parts, and is time well spent. And the less the company needs to spend to train you the more they can pay you as a salary. There is a dividend to investing in yourself and not waiting for someone else to do it for you.
Civi operations for such training have all been shut down to the best of my knowledge, you really need to go south of the 49th. Now there are also decent online materials that are no substitute, but if you take black badge it opens up options on some ranges for tactical shooting. It's about the only options you'll have for restricted range based practice. Run and gun in a safe area in the bush with friends.
Commercial civi operations have been heavily scrutinized by CFOs who are trying to use the spirit of S70 of the criminal code to prevent "unlawful drilling or training in the use of arms".
nothing prevents a private person from sharing their knowledge with another private person. Advertising it as a for profit business is a different matter.
I suspect the OP is best suited by finding a local coach who can provide the instruction you need.
Thanks for all the great suggestions. I'm going to sign up for a black badge course right away.
Black Badge is a course to teach you how to compete in a particular style of competition. If you want to compete in IPSC, then take the black badge. IF your goal is to learn to run and gun like John Wick, then save your IPSC money and head down to Cali to spend as much time as possible with Taran Butler.
Keep in mind, that in movies, accuracy doesn't matter for squat. 98% of what you need to achieve to look good on camera can be achieved simply by doing lots and lots of dry training at home. If you have a friend, get them to film you on their iphone and watch the videos to see your self and ID anything that stands out as odd.
Lastly, don't forget that the editors can fix some things. If you look super smooth, and super slow, they can just speed up the tape. They can't fix mag fumbles.
As an actor, don't neglect your research. Think of the movies and scenes that really impressed you with the actors skills and ask yourself which part of it impressed you.
For me, changing mags quickly is cool, but whatever. The thing that really makes me impressed is when people have good hands and feet skills. People who know how to clear a corner without exposing themselves (something you will never learn doing IPSC), people who can walk and actually maintain a good site picture. Good trigger finger discipline.
If you get a chance, look at wind river with jeremy renner and elizabeth Olsen (mmm). There is a scene where Olsen, a front line run of the mill FBI cop, is clearing through a house occupied by some $hit rats. I was impressed because her demonstrated skills matched the character. She wasn't the smoothest or fastest on all her drills, but she knew how to move through a room, she instinctively changed mags before running them empty, etc. And then notice how some of these scenes were utterly ruined with unrealistic effects where people get thrown several feet when getting hit with a single rifle bullet. If your director is just going to Tarantino the hell out of the whole thing, then chances are your weapons drills aren't going to matter that much.
IN any event, I wish you luck.