Help please

[Tinker2]

I am looking for a rifle made in, I think the 70’s ?
It was a black powder and or smokeless ? The gun
had a round breach that Turned to the side to load.
Used loose power and round ball.
If I remember right the .22 used bullseye powder
I think it used a cap Gun cap to fire it.
They were made in .22 .36 .45 I think.

Not sure were to post this.
That is the only things that I remember
Any information would appreciated.

 

[Eightball]

Sounds like an odd piece of work. Good luck with finding out what on earth it is (was?)