I am surprised this old "sidelock" will even shoot pellets efficiently. I would guess he might begetting a flaming hail Mary out of it. I've even seen the new inlines throw a flaming pellet. Kind of cool to see, a waste of money, and no way it is doing you any good for accuracy.

If this is an old CVA a lot of them had Douglas barrels, when a Douglas barrel really meant something. I am almost positive that is what my friends old CVA Mountain Rifle had on it. Of course that was many years ago, and my memory is not what it used to me. But the old CVA's were good rifles. And very very accurate. I could really tell some stories of what we used to do with his old .58 mountain rifle. Well made, good steel and while they were rated for 110 grains of powder max would take a lot more then that. Not that I would recommend it.

I would enjoy seeing a photo of the rifle if that is possible. I looked the rifle up on the site I check models and their specifications and it is not listed. I was hoping to see what twist it had. Most the of the old ones were 1-66 or 1-48 but 1-66 was real common in the old one because all we really had to shoot back then was round ball.