Cool. You mention trigger pull.
Back when I was young, several of my first guns, purchased from paper route money, were old clunkers to be sure.
The one thing I always noticed was the difference in the trigger. Especially on a 30-30 I bought for my first rifle with money from my own pocket. Now, I didn't actually know it went beyond the trigger itself. I just thought all guns were different. I never thought to mention to my dad and I'm not sure he would have known there was an issue we could have addressed anyway.
I was still too young to deer hunt so I would shoot with my dad during the summer months. But after the first season of target practice the bolt began sticking. Off to the gunsmith's to look for a fix. I began hating this gun. It didn't shoot nearly as nice or accurate as Dad's 243. Either of us could shoot the top off a milk jug at 100 yards with his gun. Good luck getting those results with my 30-30. I was kinda feeling like I got ripped off.
Anyway the gunsmith was able to fix the bolt and he cleaned the gun and adjusted the trigger. When I heard this it made me nervous and dad cautious so he asked about the changes. I don't remember the explanation, but when I shot that gun for the first time again it was like a different gun. The biggest change was the trigger. It felt smooth as glass. And that improved my shooting.
Ironically, the only deer I've ever shot, firearm or bow, that I didn't recover took place when using that gun. Enormous 8 point buck dropped like a rock, got back up and staggered into the woods. Hardly ever bled more than a drop for nearly a mile before the trail ran cold.
That damn deer still haunts me.
What you do in the dark will someday come to light.