However, if you don't know anything about it, it's probably just going to become overwhelming. Your competition that does indeed know a lot about it and has passion in it will likely be 1,000 steps ahead of you at all times.
Having spent days on a range, at one point, 5 days a week for a month straight from 0600 to 1800 for a competition, I know quite a bit about rifles and pistols, specifically, the M16A2 ("AR-15") rifle and M9 ("Beretta 92FS") pistol. Additionally, I was an instructor for 10 or so months, having trained groups of up to 40 every other week. As an instructor, I was also able to fire off our extra ammunition (your tax dollars at work, but making me better if the time ever came), because it was more of a hassle turning in ammunition than it was picking up brass shell casings.
So, while I still own guns (not here) and have a great deal of information about them, it's not like I can easily access my guns to make content with them, or go to a gun store and buy one, make content with it, and then resell it if I didn't want to keep it, as it's illegal for me to own a gun in Japan.
However, I have toyed with the idea of applying for a special permit for a shotgun to tame wild animals. But, there's so much red tape around that which makes me not even want to pursue it. Plus, it wouldn't be as fun as I couldn't just target practice: It'd be actual work in that I'd need to tame wild animals and have evidence of that, in which the government would pay for the kill, and also, I think, ensure ammo is all accounted for.
That said, it's not a lack of knowledge or passion that prevented me from turning it into what I wanted, rather a lack of accessibility to the tools needed (guns) to make great content.
But I understand your sentiment and this applies to all who plan to open a forum: Know your niche, know your audience, and have the passion to keep it going, or it won't succeed.