I am rude crude amateur, and I have built a 6mmBR rifle from old parts that shot a 0.3" group at 100 yards. My guess is that 1% of the population of Montana has the skill and equipment to do better than me.
But if it is jewelry and investment you are after, that is another story.
I have made 20% compounded annually from equities for the last 20 years.
I have made 3% compounded annually from guns, guitars, and Gold for some time.
I am losing money on gun parts. I am not in the gun biz.
The editor of Field and Steam says that synthetic stock rifles are a poor investment.
My father said that a guy should drag a new gun behind the truck, so it would get scratched up and he could quit worrying about that.