I tried to get my step brother to shoot my 12 gauge when he was 12. He wouldn't do it. I didn't make fun of him. Good job I didn't. He grew up to be a very big man and a bull rider. I ended up coming up to his waist.
I think I've only lately, been able to appreciate my greatest firearm moment that is now very long past.
It was a result of being raised by grandparents that were born in the 1880's and 1890's. The freedom I had, is not to be had now.
Realizing and living that, was and is my greatest firearm...
I see that bat119 already gave you my solution. But if you still want to buy some, maybe marstar. I'm surprised it's so hard to find. I have used 3f in the pan and it's worked.